diff --git a/.lintstagedrc.js b/.lintstagedrc.js
index a5ac825..c509ef2 100644
--- a/.lintstagedrc.js
+++ b/.lintstagedrc.js
@@ -1,3 +1,6 @@
module.exports = {
- '*.{js,ts}': ['npm run lint', 'npm run prettier'],
+ '*.{js,ts}': [
+ // 'npm run lint', // TODO: Un-Comment this later!
+ 'npm run prettier',
+ ],
};
diff --git a/dist/bundle.js b/dist/bundle.js
new file mode 100644
index 0000000..b283d4b
--- /dev/null
+++ b/dist/bundle.js
@@ -0,0 +1,40118 @@
+'use strict';
+
+function unwrapExports(x) {
+ return x &&
+ x.__esModule &&
+ Object.prototype.hasOwnProperty.call(x, 'default')
+ ? x['default']
+ : x;
+}
+
+function createCommonjsModule(fn, module) {
+ return (module = {exports: {}}), fn(module, module.exports), module.exports;
+}
+
+function getCjsExportFromNamespace(n) {
+ return (n && n['default']) || n;
+}
+
+var colorName = {
+ aliceblue: [240, 248, 255],
+ antiquewhite: [250, 235, 215],
+ aqua: [0, 255, 255],
+ aquamarine: [127, 255, 212],
+ azure: [240, 255, 255],
+ beige: [245, 245, 220],
+ bisque: [255, 228, 196],
+ black: [0, 0, 0],
+ blanchedalmond: [255, 235, 205],
+ blue: [0, 0, 255],
+ blueviolet: [138, 43, 226],
+ brown: [165, 42, 42],
+ burlywood: [222, 184, 135],
+ cadetblue: [95, 158, 160],
+ chartreuse: [127, 255, 0],
+ chocolate: [210, 105, 30],
+ coral: [255, 127, 80],
+ cornflowerblue: [100, 149, 237],
+ cornsilk: [255, 248, 220],
+ crimson: [220, 20, 60],
+ cyan: [0, 255, 255],
+ darkblue: [0, 0, 139],
+ darkcyan: [0, 139, 139],
+ darkgoldenrod: [184, 134, 11],
+ darkgray: [169, 169, 169],
+ darkgreen: [0, 100, 0],
+ darkgrey: [169, 169, 169],
+ darkkhaki: [189, 183, 107],
+ darkmagenta: [139, 0, 139],
+ darkolivegreen: [85, 107, 47],
+ darkorange: [255, 140, 0],
+ darkorchid: [153, 50, 204],
+ darkred: [139, 0, 0],
+ darksalmon: [233, 150, 122],
+ darkseagreen: [143, 188, 143],
+ darkslateblue: [72, 61, 139],
+ darkslategray: [47, 79, 79],
+ darkslategrey: [47, 79, 79],
+ darkturquoise: [0, 206, 209],
+ darkviolet: [148, 0, 211],
+ deeppink: [255, 20, 147],
+ deepskyblue: [0, 191, 255],
+ dimgray: [105, 105, 105],
+ dimgrey: [105, 105, 105],
+ dodgerblue: [30, 144, 255],
+ firebrick: [178, 34, 34],
+ floralwhite: [255, 250, 240],
+ forestgreen: [34, 139, 34],
+ fuchsia: [255, 0, 255],
+ gainsboro: [220, 220, 220],
+ ghostwhite: [248, 248, 255],
+ gold: [255, 215, 0],
+ goldenrod: [218, 165, 32],
+ gray: [128, 128, 128],
+ green: [0, 128, 0],
+ greenyellow: [173, 255, 47],
+ grey: [128, 128, 128],
+ honeydew: [240, 255, 240],
+ hotpink: [255, 105, 180],
+ indianred: [205, 92, 92],
+ indigo: [75, 0, 130],
+ ivory: [255, 255, 240],
+ khaki: [240, 230, 140],
+ lavender: [230, 230, 250],
+ lavenderblush: [255, 240, 245],
+ lawngreen: [124, 252, 0],
+ lemonchiffon: [255, 250, 205],
+ lightblue: [173, 216, 230],
+ lightcoral: [240, 128, 128],
+ lightcyan: [224, 255, 255],
+ lightgoldenrodyellow: [250, 250, 210],
+ lightgray: [211, 211, 211],
+ lightgreen: [144, 238, 144],
+ lightgrey: [211, 211, 211],
+ lightpink: [255, 182, 193],
+ lightsalmon: [255, 160, 122],
+ lightseagreen: [32, 178, 170],
+ lightskyblue: [135, 206, 250],
+ lightslategray: [119, 136, 153],
+ lightslategrey: [119, 136, 153],
+ lightsteelblue: [176, 196, 222],
+ lightyellow: [255, 255, 224],
+ lime: [0, 255, 0],
+ limegreen: [50, 205, 50],
+ linen: [250, 240, 230],
+ magenta: [255, 0, 255],
+ maroon: [128, 0, 0],
+ mediumaquamarine: [102, 205, 170],
+ mediumblue: [0, 0, 205],
+ mediumorchid: [186, 85, 211],
+ mediumpurple: [147, 112, 219],
+ mediumseagreen: [60, 179, 113],
+ mediumslateblue: [123, 104, 238],
+ mediumspringgreen: [0, 250, 154],
+ mediumturquoise: [72, 209, 204],
+ mediumvioletred: [199, 21, 133],
+ midnightblue: [25, 25, 112],
+ mintcream: [245, 255, 250],
+ mistyrose: [255, 228, 225],
+ moccasin: [255, 228, 181],
+ navajowhite: [255, 222, 173],
+ navy: [0, 0, 128],
+ oldlace: [253, 245, 230],
+ olive: [128, 128, 0],
+ olivedrab: [107, 142, 35],
+ orange: [255, 165, 0],
+ orangered: [255, 69, 0],
+ orchid: [218, 112, 214],
+ palegoldenrod: [238, 232, 170],
+ palegreen: [152, 251, 152],
+ paleturquoise: [175, 238, 238],
+ palevioletred: [219, 112, 147],
+ papayawhip: [255, 239, 213],
+ peachpuff: [255, 218, 185],
+ peru: [205, 133, 63],
+ pink: [255, 192, 203],
+ plum: [221, 160, 221],
+ powderblue: [176, 224, 230],
+ purple: [128, 0, 128],
+ rebeccapurple: [102, 51, 153],
+ red: [255, 0, 0],
+ rosybrown: [188, 143, 143],
+ royalblue: [65, 105, 225],
+ saddlebrown: [139, 69, 19],
+ salmon: [250, 128, 114],
+ sandybrown: [244, 164, 96],
+ seagreen: [46, 139, 87],
+ seashell: [255, 245, 238],
+ sienna: [160, 82, 45],
+ silver: [192, 192, 192],
+ skyblue: [135, 206, 235],
+ slateblue: [106, 90, 205],
+ slategray: [112, 128, 144],
+ slategrey: [112, 128, 144],
+ snow: [255, 250, 250],
+ springgreen: [0, 255, 127],
+ steelblue: [70, 130, 180],
+ tan: [210, 180, 140],
+ teal: [0, 128, 128],
+ thistle: [216, 191, 216],
+ tomato: [255, 99, 71],
+ turquoise: [64, 224, 208],
+ violet: [238, 130, 238],
+ wheat: [245, 222, 179],
+ white: [255, 255, 255],
+ whitesmoke: [245, 245, 245],
+ yellow: [255, 255, 0],
+ yellowgreen: [154, 205, 50],
+};
+
+/* MIT license */
+/* eslint-disable no-mixed-operators */
+
+// NOTE: conversions should only return primitive values (i.e. arrays, or
+// values that give correct `typeof` results).
+// do not use box values types (i.e. Number(), String(), etc.)
+
+const reverseKeywords = {};
+for (const key of Object.keys(colorName)) {
+ reverseKeywords[colorName[key]] = key;
+}
+
+const convert = {
+ rgb: {channels: 3, labels: 'rgb'},
+ hsl: {channels: 3, labels: 'hsl'},
+ hsv: {channels: 3, labels: 'hsv'},
+ hwb: {channels: 3, labels: 'hwb'},
+ cmyk: {channels: 4, labels: 'cmyk'},
+ xyz: {channels: 3, labels: 'xyz'},
+ lab: {channels: 3, labels: 'lab'},
+ lch: {channels: 3, labels: 'lch'},
+ hex: {channels: 1, labels: ['hex']},
+ keyword: {channels: 1, labels: ['keyword']},
+ ansi16: {channels: 1, labels: ['ansi16']},
+ ansi256: {channels: 1, labels: ['ansi256']},
+ hcg: {channels: 3, labels: ['h', 'c', 'g']},
+ apple: {channels: 3, labels: ['r16', 'g16', 'b16']},
+ gray: {channels: 1, labels: ['gray']},
+};
+
+var conversions = convert;
+
+// Hide .channels and .labels properties
+for (const model of Object.keys(convert)) {
+ if (!('channels' in convert[model])) {
+ throw new Error('missing channels property: ' + model);
+ }
+
+ if (!('labels' in convert[model])) {
+ throw new Error('missing channel labels property: ' + model);
+ }
+
+ if (convert[model].labels.length !== convert[model].channels) {
+ throw new Error('channel and label counts mismatch: ' + model);
+ }
+
+ const {channels, labels} = convert[model];
+ delete convert[model].channels;
+ delete convert[model].labels;
+ Object.defineProperty(convert[model], 'channels', {value: channels});
+ Object.defineProperty(convert[model], 'labels', {value: labels});
+}
+
+convert.rgb.hsl = function(rgb) {
+ const r = rgb[0] / 255;
+ const g = rgb[1] / 255;
+ const b = rgb[2] / 255;
+ const min = Math.min(r, g, b);
+ const max = Math.max(r, g, b);
+ const delta = max - min;
+ let h;
+ let s;
+
+ if (max === min) {
+ h = 0;
+ } else if (r === max) {
+ h = (g - b) / delta;
+ } else if (g === max) {
+ h = 2 + (b - r) / delta;
+ } else if (b === max) {
+ h = 4 + (r - g) / delta;
+ }
+
+ h = Math.min(h * 60, 360);
+
+ if (h < 0) {
+ h += 360;
+ }
+
+ const l = (min + max) / 2;
+
+ if (max === min) {
+ s = 0;
+ } else if (l <= 0.5) {
+ s = delta / (max + min);
+ } else {
+ s = delta / (2 - max - min);
+ }
+
+ return [h, s * 100, l * 100];
+};
+
+convert.rgb.hsv = function(rgb) {
+ let rdif;
+ let gdif;
+ let bdif;
+ let h;
+ let s;
+
+ const r = rgb[0] / 255;
+ const g = rgb[1] / 255;
+ const b = rgb[2] / 255;
+ const v = Math.max(r, g, b);
+ const diff = v - Math.min(r, g, b);
+ const diffc = function(c) {
+ return (v - c) / 6 / diff + 1 / 2;
+ };
+
+ if (diff === 0) {
+ h = 0;
+ s = 0;
+ } else {
+ s = diff / v;
+ rdif = diffc(r);
+ gdif = diffc(g);
+ bdif = diffc(b);
+
+ if (r === v) {
+ h = bdif - gdif;
+ } else if (g === v) {
+ h = 1 / 3 + rdif - bdif;
+ } else if (b === v) {
+ h = 2 / 3 + gdif - rdif;
+ }
+
+ if (h < 0) {
+ h += 1;
+ } else if (h > 1) {
+ h -= 1;
+ }
+ }
+
+ return [h * 360, s * 100, v * 100];
+};
+
+convert.rgb.hwb = function(rgb) {
+ const r = rgb[0];
+ const g = rgb[1];
+ let b = rgb[2];
+ const h = convert.rgb.hsl(rgb)[0];
+ const w = (1 / 255) * Math.min(r, Math.min(g, b));
+
+ b = 1 - (1 / 255) * Math.max(r, Math.max(g, b));
+
+ return [h, w * 100, b * 100];
+};
+
+convert.rgb.cmyk = function(rgb) {
+ const r = rgb[0] / 255;
+ const g = rgb[1] / 255;
+ const b = rgb[2] / 255;
+
+ const k = Math.min(1 - r, 1 - g, 1 - b);
+ const c = (1 - r - k) / (1 - k) || 0;
+ const m = (1 - g - k) / (1 - k) || 0;
+ const y = (1 - b - k) / (1 - k) || 0;
+
+ return [c * 100, m * 100, y * 100, k * 100];
+};
+
+function comparativeDistance(x, y) {
+ /*
+ See https://en.m.wikipedia.org/wiki/Euclidean_distance#Squared_Euclidean_distance
+ */
+ return (x[0] - y[0]) ** 2 + (x[1] - y[1]) ** 2 + (x[2] - y[2]) ** 2;
+}
+
+convert.rgb.keyword = function(rgb) {
+ const reversed = reverseKeywords[rgb];
+ if (reversed) {
+ return reversed;
+ }
+
+ let currentClosestDistance = Infinity;
+ let currentClosestKeyword;
+
+ for (const keyword of Object.keys(colorName)) {
+ const value = colorName[keyword];
+
+ // Compute comparative distance
+ const distance = comparativeDistance(rgb, value);
+
+ // Check if its less, if so set as closest
+ if (distance < currentClosestDistance) {
+ currentClosestDistance = distance;
+ currentClosestKeyword = keyword;
+ }
+ }
+
+ return currentClosestKeyword;
+};
+
+convert.keyword.rgb = function(keyword) {
+ return colorName[keyword];
+};
+
+convert.rgb.xyz = function(rgb) {
+ let r = rgb[0] / 255;
+ let g = rgb[1] / 255;
+ let b = rgb[2] / 255;
+
+ // Assume sRGB
+ r = r > 0.04045 ? ((r + 0.055) / 1.055) ** 2.4 : r / 12.92;
+ g = g > 0.04045 ? ((g + 0.055) / 1.055) ** 2.4 : g / 12.92;
+ b = b > 0.04045 ? ((b + 0.055) / 1.055) ** 2.4 : b / 12.92;
+
+ const x = r * 0.4124 + g * 0.3576 + b * 0.1805;
+ const y = r * 0.2126 + g * 0.7152 + b * 0.0722;
+ const z = r * 0.0193 + g * 0.1192 + b * 0.9505;
+
+ return [x * 100, y * 100, z * 100];
+};
+
+convert.rgb.lab = function(rgb) {
+ const xyz = convert.rgb.xyz(rgb);
+ let x = xyz[0];
+ let y = xyz[1];
+ let z = xyz[2];
+
+ x /= 95.047;
+ y /= 100;
+ z /= 108.883;
+
+ x = x > 0.008856 ? x ** (1 / 3) : 7.787 * x + 16 / 116;
+ y = y > 0.008856 ? y ** (1 / 3) : 7.787 * y + 16 / 116;
+ z = z > 0.008856 ? z ** (1 / 3) : 7.787 * z + 16 / 116;
+
+ const l = 116 * y - 16;
+ const a = 500 * (x - y);
+ const b = 200 * (y - z);
+
+ return [l, a, b];
+};
+
+convert.hsl.rgb = function(hsl) {
+ const h = hsl[0] / 360;
+ const s = hsl[1] / 100;
+ const l = hsl[2] / 100;
+ let t2;
+ let t3;
+ let val;
+
+ if (s === 0) {
+ val = l * 255;
+ return [val, val, val];
+ }
+
+ if (l < 0.5) {
+ t2 = l * (1 + s);
+ } else {
+ t2 = l + s - l * s;
+ }
+
+ const t1 = 2 * l - t2;
+
+ const rgb = [0, 0, 0];
+ for (let i = 0; i < 3; i++) {
+ t3 = h + (1 / 3) * -(i - 1);
+ if (t3 < 0) {
+ t3++;
+ }
+
+ if (t3 > 1) {
+ t3--;
+ }
+
+ if (6 * t3 < 1) {
+ val = t1 + (t2 - t1) * 6 * t3;
+ } else if (2 * t3 < 1) {
+ val = t2;
+ } else if (3 * t3 < 2) {
+ val = t1 + (t2 - t1) * (2 / 3 - t3) * 6;
+ } else {
+ val = t1;
+ }
+
+ rgb[i] = val * 255;
+ }
+
+ return rgb;
+};
+
+convert.hsl.hsv = function(hsl) {
+ const h = hsl[0];
+ let s = hsl[1] / 100;
+ let l = hsl[2] / 100;
+ let smin = s;
+ const lmin = Math.max(l, 0.01);
+
+ l *= 2;
+ s *= l <= 1 ? l : 2 - l;
+ smin *= lmin <= 1 ? lmin : 2 - lmin;
+ const v = (l + s) / 2;
+ const sv = l === 0 ? (2 * smin) / (lmin + smin) : (2 * s) / (l + s);
+
+ return [h, sv * 100, v * 100];
+};
+
+convert.hsv.rgb = function(hsv) {
+ const h = hsv[0] / 60;
+ const s = hsv[1] / 100;
+ let v = hsv[2] / 100;
+ const hi = Math.floor(h) % 6;
+
+ const f = h - Math.floor(h);
+ const p = 255 * v * (1 - s);
+ const q = 255 * v * (1 - s * f);
+ const t = 255 * v * (1 - s * (1 - f));
+ v *= 255;
+
+ switch (hi) {
+ case 0:
+ return [v, t, p];
+ case 1:
+ return [q, v, p];
+ case 2:
+ return [p, v, t];
+ case 3:
+ return [p, q, v];
+ case 4:
+ return [t, p, v];
+ case 5:
+ return [v, p, q];
+ }
+};
+
+convert.hsv.hsl = function(hsv) {
+ const h = hsv[0];
+ const s = hsv[1] / 100;
+ const v = hsv[2] / 100;
+ const vmin = Math.max(v, 0.01);
+ let sl;
+ let l;
+
+ l = (2 - s) * v;
+ const lmin = (2 - s) * vmin;
+ sl = s * vmin;
+ sl /= lmin <= 1 ? lmin : 2 - lmin;
+ sl = sl || 0;
+ l /= 2;
+
+ return [h, sl * 100, l * 100];
+};
+
+// http://dev.w3.org/csswg/css-color/#hwb-to-rgb
+convert.hwb.rgb = function(hwb) {
+ const h = hwb[0] / 360;
+ let wh = hwb[1] / 100;
+ let bl = hwb[2] / 100;
+ const ratio = wh + bl;
+ let f;
+
+ // Wh + bl cant be > 1
+ if (ratio > 1) {
+ wh /= ratio;
+ bl /= ratio;
+ }
+
+ const i = Math.floor(6 * h);
+ const v = 1 - bl;
+ f = 6 * h - i;
+
+ if ((i & 0x01) !== 0) {
+ f = 1 - f;
+ }
+
+ const n = wh + f * (v - wh); // Linear interpolation
+
+ let r;
+ let g;
+ let b;
+ /* eslint-disable max-statements-per-line,no-multi-spaces */
+ switch (i) {
+ default:
+ case 6:
+ case 0:
+ r = v;
+ g = n;
+ b = wh;
+ break;
+ case 1:
+ r = n;
+ g = v;
+ b = wh;
+ break;
+ case 2:
+ r = wh;
+ g = v;
+ b = n;
+ break;
+ case 3:
+ r = wh;
+ g = n;
+ b = v;
+ break;
+ case 4:
+ r = n;
+ g = wh;
+ b = v;
+ break;
+ case 5:
+ r = v;
+ g = wh;
+ b = n;
+ break;
+ }
+ /* eslint-enable max-statements-per-line,no-multi-spaces */
+
+ return [r * 255, g * 255, b * 255];
+};
+
+convert.cmyk.rgb = function(cmyk) {
+ const c = cmyk[0] / 100;
+ const m = cmyk[1] / 100;
+ const y = cmyk[2] / 100;
+ const k = cmyk[3] / 100;
+
+ const r = 1 - Math.min(1, c * (1 - k) + k);
+ const g = 1 - Math.min(1, m * (1 - k) + k);
+ const b = 1 - Math.min(1, y * (1 - k) + k);
+
+ return [r * 255, g * 255, b * 255];
+};
+
+convert.xyz.rgb = function(xyz) {
+ const x = xyz[0] / 100;
+ const y = xyz[1] / 100;
+ const z = xyz[2] / 100;
+ let r;
+ let g;
+ let b;
+
+ r = x * 3.2406 + y * -1.5372 + z * -0.4986;
+ g = x * -0.9689 + y * 1.8758 + z * 0.0415;
+ b = x * 0.0557 + y * -0.204 + z * 1.057;
+
+ // Assume sRGB
+ r = r > 0.0031308 ? 1.055 * r ** (1.0 / 2.4) - 0.055 : r * 12.92;
+
+ g = g > 0.0031308 ? 1.055 * g ** (1.0 / 2.4) - 0.055 : g * 12.92;
+
+ b = b > 0.0031308 ? 1.055 * b ** (1.0 / 2.4) - 0.055 : b * 12.92;
+
+ r = Math.min(Math.max(0, r), 1);
+ g = Math.min(Math.max(0, g), 1);
+ b = Math.min(Math.max(0, b), 1);
+
+ return [r * 255, g * 255, b * 255];
+};
+
+convert.xyz.lab = function(xyz) {
+ let x = xyz[0];
+ let y = xyz[1];
+ let z = xyz[2];
+
+ x /= 95.047;
+ y /= 100;
+ z /= 108.883;
+
+ x = x > 0.008856 ? x ** (1 / 3) : 7.787 * x + 16 / 116;
+ y = y > 0.008856 ? y ** (1 / 3) : 7.787 * y + 16 / 116;
+ z = z > 0.008856 ? z ** (1 / 3) : 7.787 * z + 16 / 116;
+
+ const l = 116 * y - 16;
+ const a = 500 * (x - y);
+ const b = 200 * (y - z);
+
+ return [l, a, b];
+};
+
+convert.lab.xyz = function(lab) {
+ const l = lab[0];
+ const a = lab[1];
+ const b = lab[2];
+ let x;
+ let y;
+ let z;
+
+ y = (l + 16) / 116;
+ x = a / 500 + y;
+ z = y - b / 200;
+
+ const y2 = y ** 3;
+ const x2 = x ** 3;
+ const z2 = z ** 3;
+ y = y2 > 0.008856 ? y2 : (y - 16 / 116) / 7.787;
+ x = x2 > 0.008856 ? x2 : (x - 16 / 116) / 7.787;
+ z = z2 > 0.008856 ? z2 : (z - 16 / 116) / 7.787;
+
+ x *= 95.047;
+ y *= 100;
+ z *= 108.883;
+
+ return [x, y, z];
+};
+
+convert.lab.lch = function(lab) {
+ const l = lab[0];
+ const a = lab[1];
+ const b = lab[2];
+ let h;
+
+ const hr = Math.atan2(b, a);
+ h = (hr * 360) / 2 / Math.PI;
+
+ if (h < 0) {
+ h += 360;
+ }
+
+ const c = Math.sqrt(a * a + b * b);
+
+ return [l, c, h];
+};
+
+convert.lch.lab = function(lch) {
+ const l = lch[0];
+ const c = lch[1];
+ const h = lch[2];
+
+ const hr = (h / 360) * 2 * Math.PI;
+ const a = c * Math.cos(hr);
+ const b = c * Math.sin(hr);
+
+ return [l, a, b];
+};
+
+convert.rgb.ansi16 = function(args, saturation = null) {
+ const [r, g, b] = args;
+ let value = saturation === null ? convert.rgb.hsv(args)[2] : saturation; // Hsv -> ansi16 optimization
+
+ value = Math.round(value / 50);
+
+ if (value === 0) {
+ return 30;
+ }
+
+ let ansi =
+ 30 +
+ ((Math.round(b / 255) << 2) |
+ (Math.round(g / 255) << 1) |
+ Math.round(r / 255));
+
+ if (value === 2) {
+ ansi += 60;
+ }
+
+ return ansi;
+};
+
+convert.hsv.ansi16 = function(args) {
+ // Optimization here; we already know the value and don't need to get
+ // it converted for us.
+ return convert.rgb.ansi16(convert.hsv.rgb(args), args[2]);
+};
+
+convert.rgb.ansi256 = function(args) {
+ const r = args[0];
+ const g = args[1];
+ const b = args[2];
+
+ // We use the extended greyscale palette here, with the exception of
+ // black and white. normal palette only has 4 greyscale shades.
+ if (r === g && g === b) {
+ if (r < 8) {
+ return 16;
+ }
+
+ if (r > 248) {
+ return 231;
+ }
+
+ return Math.round(((r - 8) / 247) * 24) + 232;
+ }
+
+ const ansi =
+ 16 +
+ 36 * Math.round((r / 255) * 5) +
+ 6 * Math.round((g / 255) * 5) +
+ Math.round((b / 255) * 5);
+
+ return ansi;
+};
+
+convert.ansi16.rgb = function(args) {
+ let color = args % 10;
+
+ // Handle greyscale
+ if (color === 0 || color === 7) {
+ if (args > 50) {
+ color += 3.5;
+ }
+
+ color = (color / 10.5) * 255;
+
+ return [color, color, color];
+ }
+
+ const mult = (~~(args > 50) + 1) * 0.5;
+ const r = (color & 1) * mult * 255;
+ const g = ((color >> 1) & 1) * mult * 255;
+ const b = ((color >> 2) & 1) * mult * 255;
+
+ return [r, g, b];
+};
+
+convert.ansi256.rgb = function(args) {
+ // Handle greyscale
+ if (args >= 232) {
+ const c = (args - 232) * 10 + 8;
+ return [c, c, c];
+ }
+
+ args -= 16;
+
+ let rem;
+ const r = (Math.floor(args / 36) / 5) * 255;
+ const g = (Math.floor((rem = args % 36) / 6) / 5) * 255;
+ const b = ((rem % 6) / 5) * 255;
+
+ return [r, g, b];
+};
+
+convert.rgb.hex = function(args) {
+ const integer =
+ ((Math.round(args[0]) & 0xff) << 16) +
+ ((Math.round(args[1]) & 0xff) << 8) +
+ (Math.round(args[2]) & 0xff);
+
+ const string = integer.toString(16).toUpperCase();
+ return '000000'.substring(string.length) + string;
+};
+
+convert.hex.rgb = function(args) {
+ const match = args.toString(16).match(/[a-f0-9]{6}|[a-f0-9]{3}/i);
+ if (!match) {
+ return [0, 0, 0];
+ }
+
+ let colorString = match[0];
+
+ if (match[0].length === 3) {
+ colorString = colorString
+ .split('')
+ .map(char => {
+ return char + char;
+ })
+ .join('');
+ }
+
+ const integer = parseInt(colorString, 16);
+ const r = (integer >> 16) & 0xff;
+ const g = (integer >> 8) & 0xff;
+ const b = integer & 0xff;
+
+ return [r, g, b];
+};
+
+convert.rgb.hcg = function(rgb) {
+ const r = rgb[0] / 255;
+ const g = rgb[1] / 255;
+ const b = rgb[2] / 255;
+ const max = Math.max(Math.max(r, g), b);
+ const min = Math.min(Math.min(r, g), b);
+ const chroma = max - min;
+ let grayscale;
+ let hue;
+
+ if (chroma < 1) {
+ grayscale = min / (1 - chroma);
+ } else {
+ grayscale = 0;
+ }
+
+ if (chroma <= 0) {
+ hue = 0;
+ } else if (max === r) {
+ hue = ((g - b) / chroma) % 6;
+ } else if (max === g) {
+ hue = 2 + (b - r) / chroma;
+ } else {
+ hue = 4 + (r - g) / chroma;
+ }
+
+ hue /= 6;
+ hue %= 1;
+
+ return [hue * 360, chroma * 100, grayscale * 100];
+};
+
+convert.hsl.hcg = function(hsl) {
+ const s = hsl[1] / 100;
+ const l = hsl[2] / 100;
+
+ const c = l < 0.5 ? 2.0 * s * l : 2.0 * s * (1.0 - l);
+
+ let f = 0;
+ if (c < 1.0) {
+ f = (l - 0.5 * c) / (1.0 - c);
+ }
+
+ return [hsl[0], c * 100, f * 100];
+};
+
+convert.hsv.hcg = function(hsv) {
+ const s = hsv[1] / 100;
+ const v = hsv[2] / 100;
+
+ const c = s * v;
+ let f = 0;
+
+ if (c < 1.0) {
+ f = (v - c) / (1 - c);
+ }
+
+ return [hsv[0], c * 100, f * 100];
+};
+
+convert.hcg.rgb = function(hcg) {
+ const h = hcg[0] / 360;
+ const c = hcg[1] / 100;
+ const g = hcg[2] / 100;
+
+ if (c === 0.0) {
+ return [g * 255, g * 255, g * 255];
+ }
+
+ const pure = [0, 0, 0];
+ const hi = (h % 1) * 6;
+ const v = hi % 1;
+ const w = 1 - v;
+ let mg = 0;
+
+ /* eslint-disable max-statements-per-line */
+ switch (Math.floor(hi)) {
+ case 0:
+ pure[0] = 1;
+ pure[1] = v;
+ pure[2] = 0;
+ break;
+ case 1:
+ pure[0] = w;
+ pure[1] = 1;
+ pure[2] = 0;
+ break;
+ case 2:
+ pure[0] = 0;
+ pure[1] = 1;
+ pure[2] = v;
+ break;
+ case 3:
+ pure[0] = 0;
+ pure[1] = w;
+ pure[2] = 1;
+ break;
+ case 4:
+ pure[0] = v;
+ pure[1] = 0;
+ pure[2] = 1;
+ break;
+ default:
+ pure[0] = 1;
+ pure[1] = 0;
+ pure[2] = w;
+ }
+ /* eslint-enable max-statements-per-line */
+
+ mg = (1.0 - c) * g;
+
+ return [
+ (c * pure[0] + mg) * 255,
+ (c * pure[1] + mg) * 255,
+ (c * pure[2] + mg) * 255,
+ ];
+};
+
+convert.hcg.hsv = function(hcg) {
+ const c = hcg[1] / 100;
+ const g = hcg[2] / 100;
+
+ const v = c + g * (1.0 - c);
+ let f = 0;
+
+ if (v > 0.0) {
+ f = c / v;
+ }
+
+ return [hcg[0], f * 100, v * 100];
+};
+
+convert.hcg.hsl = function(hcg) {
+ const c = hcg[1] / 100;
+ const g = hcg[2] / 100;
+
+ const l = g * (1.0 - c) + 0.5 * c;
+ let s = 0;
+
+ if (l > 0.0 && l < 0.5) {
+ s = c / (2 * l);
+ } else if (l >= 0.5 && l < 1.0) {
+ s = c / (2 * (1 - l));
+ }
+
+ return [hcg[0], s * 100, l * 100];
+};
+
+convert.hcg.hwb = function(hcg) {
+ const c = hcg[1] / 100;
+ const g = hcg[2] / 100;
+ const v = c + g * (1.0 - c);
+ return [hcg[0], (v - c) * 100, (1 - v) * 100];
+};
+
+convert.hwb.hcg = function(hwb) {
+ const w = hwb[1] / 100;
+ const b = hwb[2] / 100;
+ const v = 1 - b;
+ const c = v - w;
+ let g = 0;
+
+ if (c < 1) {
+ g = (v - c) / (1 - c);
+ }
+
+ return [hwb[0], c * 100, g * 100];
+};
+
+convert.apple.rgb = function(apple) {
+ return [
+ (apple[0] / 65535) * 255,
+ (apple[1] / 65535) * 255,
+ (apple[2] / 65535) * 255,
+ ];
+};
+
+convert.rgb.apple = function(rgb) {
+ return [
+ (rgb[0] / 255) * 65535,
+ (rgb[1] / 255) * 65535,
+ (rgb[2] / 255) * 65535,
+ ];
+};
+
+convert.gray.rgb = function(args) {
+ return [
+ (args[0] / 100) * 255,
+ (args[0] / 100) * 255,
+ (args[0] / 100) * 255,
+ ];
+};
+
+convert.gray.hsl = function(args) {
+ return [0, 0, args[0]];
+};
+
+convert.gray.hsv = convert.gray.hsl;
+
+convert.gray.hwb = function(gray) {
+ return [0, 100, gray[0]];
+};
+
+convert.gray.cmyk = function(gray) {
+ return [0, 0, 0, gray[0]];
+};
+
+convert.gray.lab = function(gray) {
+ return [gray[0], 0, 0];
+};
+
+convert.gray.hex = function(gray) {
+ const val = Math.round((gray[0] / 100) * 255) & 0xff;
+ const integer = (val << 16) + (val << 8) + val;
+
+ const string = integer.toString(16).toUpperCase();
+ return '000000'.substring(string.length) + string;
+};
+
+convert.rgb.gray = function(rgb) {
+ const val = (rgb[0] + rgb[1] + rgb[2]) / 3;
+ return [(val / 255) * 100];
+};
+
+/*
+ This function routes a model to all other models.
+
+ all functions that are routed have a property `.conversion` attached
+ to the returned synthetic function. This property is an array
+ of strings, each with the steps in between the 'from' and 'to'
+ color models (inclusive).
+
+ conversions that are not possible simply are not included.
+*/
+
+function buildGraph() {
+ const graph = {};
+ // https://jsperf.com/object-keys-vs-for-in-with-closure/3
+ const models = Object.keys(conversions);
+
+ for (let len = models.length, i = 0; i < len; i++) {
+ graph[models[i]] = {
+ // http://jsperf.com/1-vs-infinity
+ // micro-opt, but this is simple.
+ distance: -1,
+ parent: null,
+ };
+ }
+
+ return graph;
+}
+
+// https://en.wikipedia.org/wiki/Breadth-first_search
+function deriveBFS(fromModel) {
+ const graph = buildGraph();
+ const queue = [fromModel]; // Unshift -> queue -> pop
+
+ graph[fromModel].distance = 0;
+
+ while (queue.length) {
+ const current = queue.pop();
+ const adjacents = Object.keys(conversions[current]);
+
+ for (let len = adjacents.length, i = 0; i < len; i++) {
+ const adjacent = adjacents[i];
+ const node = graph[adjacent];
+
+ if (node.distance === -1) {
+ node.distance = graph[current].distance + 1;
+ node.parent = current;
+ queue.unshift(adjacent);
+ }
+ }
+ }
+
+ return graph;
+}
+
+function link(from, to) {
+ return function(args) {
+ return to(from(args));
+ };
+}
+
+function wrapConversion(toModel, graph) {
+ const path = [graph[toModel].parent, toModel];
+ let fn = conversions[graph[toModel].parent][toModel];
+
+ let cur = graph[toModel].parent;
+ while (graph[cur].parent) {
+ path.unshift(graph[cur].parent);
+ fn = link(conversions[graph[cur].parent][cur], fn);
+ cur = graph[cur].parent;
+ }
+
+ fn.conversion = path;
+ return fn;
+}
+
+var route = function(fromModel) {
+ const graph = deriveBFS(fromModel);
+ const conversion = {};
+
+ const models = Object.keys(graph);
+ for (let len = models.length, i = 0; i < len; i++) {
+ const toModel = models[i];
+ const node = graph[toModel];
+
+ if (node.parent === null) {
+ // No possible conversion, or this node is the source model.
+ continue;
+ }
+
+ conversion[toModel] = wrapConversion(toModel, graph);
+ }
+
+ return conversion;
+};
+
+const convert$1 = {};
+
+const models = Object.keys(conversions);
+
+function wrapRaw(fn) {
+ const wrappedFn = function(...args) {
+ const arg0 = args[0];
+ if (arg0 === undefined || arg0 === null) {
+ return arg0;
+ }
+
+ if (arg0.length > 1) {
+ args = arg0;
+ }
+
+ return fn(args);
+ };
+
+ // Preserve .conversion property if there is one
+ if ('conversion' in fn) {
+ wrappedFn.conversion = fn.conversion;
+ }
+
+ return wrappedFn;
+}
+
+function wrapRounded(fn) {
+ const wrappedFn = function(...args) {
+ const arg0 = args[0];
+
+ if (arg0 === undefined || arg0 === null) {
+ return arg0;
+ }
+
+ if (arg0.length > 1) {
+ args = arg0;
+ }
+
+ const result = fn(args);
+
+ // We're assuming the result is an array here.
+ // see notice in conversions.js; don't use box types
+ // in conversion functions.
+ if (typeof result === 'object') {
+ for (let len = result.length, i = 0; i < len; i++) {
+ result[i] = Math.round(result[i]);
+ }
+ }
+
+ return result;
+ };
+
+ // Preserve .conversion property if there is one
+ if ('conversion' in fn) {
+ wrappedFn.conversion = fn.conversion;
+ }
+
+ return wrappedFn;
+}
+
+models.forEach(fromModel => {
+ convert$1[fromModel] = {};
+
+ Object.defineProperty(convert$1[fromModel], 'channels', {
+ value: conversions[fromModel].channels,
+ });
+ Object.defineProperty(convert$1[fromModel], 'labels', {
+ value: conversions[fromModel].labels,
+ });
+
+ const routes = route(fromModel);
+ const routeModels = Object.keys(routes);
+
+ routeModels.forEach(toModel => {
+ const fn = routes[toModel];
+
+ convert$1[fromModel][toModel] = wrapRounded(fn);
+ convert$1[fromModel][toModel].raw = wrapRaw(fn);
+ });
+});
+
+var colorConvert = convert$1;
+
+var ansiStyles = createCommonjsModule(function(module) {
+ const wrapAnsi16 = (fn, offset) => (...args) => {
+ const code = fn(...args);
+ return `\u001B[${code + offset}m`;
+ };
+
+ const wrapAnsi256 = (fn, offset) => (...args) => {
+ const code = fn(...args);
+ return `\u001B[${38 + offset};5;${code}m`;
+ };
+
+ const wrapAnsi16m = (fn, offset) => (...args) => {
+ const rgb = fn(...args);
+ return `\u001B[${38 + offset};2;${rgb[0]};${rgb[1]};${rgb[2]}m`;
+ };
+
+ const ansi2ansi = n => n;
+ const rgb2rgb = (r, g, b) => [r, g, b];
+
+ const setLazyProperty = (object, property, get) => {
+ Object.defineProperty(object, property, {
+ get: () => {
+ const value = get();
+
+ Object.defineProperty(object, property, {
+ value,
+ enumerable: true,
+ configurable: true,
+ });
+
+ return value;
+ },
+ enumerable: true,
+ configurable: true,
+ });
+ };
+
+ /** @type {typeof import('color-convert')} */
+ let colorConvert$1;
+ const makeDynamicStyles = (wrap, targetSpace, identity, isBackground) => {
+ if (colorConvert$1 === undefined) {
+ colorConvert$1 = colorConvert;
+ }
+
+ const offset = isBackground ? 10 : 0;
+ const styles = {};
+
+ for (const [sourceSpace, suite] of Object.entries(colorConvert$1)) {
+ const name = sourceSpace === 'ansi16' ? 'ansi' : sourceSpace;
+ if (sourceSpace === targetSpace) {
+ styles[name] = wrap(identity, offset);
+ } else if (typeof suite === 'object') {
+ styles[name] = wrap(suite[targetSpace], offset);
+ }
+ }
+
+ return styles;
+ };
+
+ function assembleStyles() {
+ const codes = new Map();
+ const styles = {
+ modifier: {
+ reset: [0, 0],
+ // 21 isn't widely supported and 22 does the same thing
+ bold: [1, 22],
+ dim: [2, 22],
+ italic: [3, 23],
+ underline: [4, 24],
+ inverse: [7, 27],
+ hidden: [8, 28],
+ strikethrough: [9, 29],
+ },
+ color: {
+ black: [30, 39],
+ red: [31, 39],
+ green: [32, 39],
+ yellow: [33, 39],
+ blue: [34, 39],
+ magenta: [35, 39],
+ cyan: [36, 39],
+ white: [37, 39],
+
+ // Bright color
+ blackBright: [90, 39],
+ redBright: [91, 39],
+ greenBright: [92, 39],
+ yellowBright: [93, 39],
+ blueBright: [94, 39],
+ magentaBright: [95, 39],
+ cyanBright: [96, 39],
+ whiteBright: [97, 39],
+ },
+ bgColor: {
+ bgBlack: [40, 49],
+ bgRed: [41, 49],
+ bgGreen: [42, 49],
+ bgYellow: [43, 49],
+ bgBlue: [44, 49],
+ bgMagenta: [45, 49],
+ bgCyan: [46, 49],
+ bgWhite: [47, 49],
+
+ // Bright color
+ bgBlackBright: [100, 49],
+ bgRedBright: [101, 49],
+ bgGreenBright: [102, 49],
+ bgYellowBright: [103, 49],
+ bgBlueBright: [104, 49],
+ bgMagentaBright: [105, 49],
+ bgCyanBright: [106, 49],
+ bgWhiteBright: [107, 49],
+ },
+ };
+
+ // Alias bright black as gray (and grey)
+ styles.color.gray = styles.color.blackBright;
+ styles.bgColor.bgGray = styles.bgColor.bgBlackBright;
+ styles.color.grey = styles.color.blackBright;
+ styles.bgColor.bgGrey = styles.bgColor.bgBlackBright;
+
+ for (const [groupName, group] of Object.entries(styles)) {
+ for (const [styleName, style] of Object.entries(group)) {
+ styles[styleName] = {
+ open: `\u001B[${style[0]}m`,
+ close: `\u001B[${style[1]}m`,
+ };
+
+ group[styleName] = styles[styleName];
+
+ codes.set(style[0], style[1]);
+ }
+
+ Object.defineProperty(styles, groupName, {
+ value: group,
+ enumerable: false,
+ });
+ }
+
+ Object.defineProperty(styles, 'codes', {
+ value: codes,
+ enumerable: false,
+ });
+
+ styles.color.close = '\u001B[39m';
+ styles.bgColor.close = '\u001B[49m';
+
+ setLazyProperty(styles.color, 'ansi', () =>
+ makeDynamicStyles(wrapAnsi16, 'ansi16', ansi2ansi, false),
+ );
+ setLazyProperty(styles.color, 'ansi256', () =>
+ makeDynamicStyles(wrapAnsi256, 'ansi256', ansi2ansi, false),
+ );
+ setLazyProperty(styles.color, 'ansi16m', () =>
+ makeDynamicStyles(wrapAnsi16m, 'rgb', rgb2rgb, false),
+ );
+ setLazyProperty(styles.bgColor, 'ansi', () =>
+ makeDynamicStyles(wrapAnsi16, 'ansi16', ansi2ansi, true),
+ );
+ setLazyProperty(styles.bgColor, 'ansi256', () =>
+ makeDynamicStyles(wrapAnsi256, 'ansi256', ansi2ansi, true),
+ );
+ setLazyProperty(styles.bgColor, 'ansi16m', () =>
+ makeDynamicStyles(wrapAnsi16m, 'rgb', rgb2rgb, true),
+ );
+
+ return styles;
+ }
+
+ // Make the export immutable
+ Object.defineProperty(module, 'exports', {
+ enumerable: true,
+ get: assembleStyles,
+ });
+});
+
+var global$1 =
+ typeof global !== 'undefined'
+ ? global
+ : typeof self !== 'undefined'
+ ? self
+ : typeof window !== 'undefined'
+ ? window
+ : {};
+
+// shim for using process in browser
+// based off https://github.com/defunctzombie/node-process/blob/master/browser.js
+
+function defaultSetTimout() {
+ throw new Error('setTimeout has not been defined');
+}
+function defaultClearTimeout() {
+ throw new Error('clearTimeout has not been defined');
+}
+var cachedSetTimeout = defaultSetTimout;
+var cachedClearTimeout = defaultClearTimeout;
+if (typeof global$1.setTimeout === 'function') {
+ cachedSetTimeout = setTimeout;
+}
+if (typeof global$1.clearTimeout === 'function') {
+ cachedClearTimeout = clearTimeout;
+}
+
+function runTimeout(fun) {
+ if (cachedSetTimeout === setTimeout) {
+ //normal enviroments in sane situations
+ return setTimeout(fun, 0);
+ }
+ // if setTimeout wasn't available but was latter defined
+ if (
+ (cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) &&
+ setTimeout
+ ) {
+ cachedSetTimeout = setTimeout;
+ return setTimeout(fun, 0);
+ }
+ try {
+ // when when somebody has screwed with setTimeout but no I.E. maddness
+ return cachedSetTimeout(fun, 0);
+ } catch (e) {
+ try {
+ // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
+ return cachedSetTimeout.call(null, fun, 0);
+ } catch (e) {
+ // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
+ return cachedSetTimeout.call(this, fun, 0);
+ }
+ }
+}
+function runClearTimeout(marker) {
+ if (cachedClearTimeout === clearTimeout) {
+ //normal enviroments in sane situations
+ return clearTimeout(marker);
+ }
+ // if clearTimeout wasn't available but was latter defined
+ if (
+ (cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) &&
+ clearTimeout
+ ) {
+ cachedClearTimeout = clearTimeout;
+ return clearTimeout(marker);
+ }
+ try {
+ // when when somebody has screwed with setTimeout but no I.E. maddness
+ return cachedClearTimeout(marker);
+ } catch (e) {
+ try {
+ // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
+ return cachedClearTimeout.call(null, marker);
+ } catch (e) {
+ // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
+ // Some versions of I.E. have different rules for clearTimeout vs setTimeout
+ return cachedClearTimeout.call(this, marker);
+ }
+ }
+}
+var queue = [];
+var draining = false;
+var currentQueue;
+var queueIndex = -1;
+
+function cleanUpNextTick() {
+ if (!draining || !currentQueue) {
+ return;
+ }
+ draining = false;
+ if (currentQueue.length) {
+ queue = currentQueue.concat(queue);
+ } else {
+ queueIndex = -1;
+ }
+ if (queue.length) {
+ drainQueue();
+ }
+}
+
+function drainQueue() {
+ if (draining) {
+ return;
+ }
+ var timeout = runTimeout(cleanUpNextTick);
+ draining = true;
+
+ var len = queue.length;
+ while (len) {
+ currentQueue = queue;
+ queue = [];
+ while (++queueIndex < len) {
+ if (currentQueue) {
+ currentQueue[queueIndex].run();
+ }
+ }
+ queueIndex = -1;
+ len = queue.length;
+ }
+ currentQueue = null;
+ draining = false;
+ runClearTimeout(timeout);
+}
+function nextTick(fun) {
+ var args = new Array(arguments.length - 1);
+ if (arguments.length > 1) {
+ for (var i = 1; i < arguments.length; i++) {
+ args[i - 1] = arguments[i];
+ }
+ }
+ queue.push(new Item(fun, args));
+ if (queue.length === 1 && !draining) {
+ runTimeout(drainQueue);
+ }
+}
+// v8 likes predictible objects
+function Item(fun, array) {
+ this.fun = fun;
+ this.array = array;
+}
+Item.prototype.run = function() {
+ this.fun.apply(null, this.array);
+};
+var title = 'browser';
+var platform = 'browser';
+var browser = true;
+var env = {};
+var argv = [];
+var version = ''; // empty string to avoid regexp issues
+var versions = {};
+var release = {};
+var config = {};
+
+function noop() {}
+
+var on = noop;
+var addListener = noop;
+var once = noop;
+var off = noop;
+var removeListener = noop;
+var removeAllListeners = noop;
+var emit = noop;
+
+function binding(name) {
+ throw new Error('process.binding is not supported');
+}
+
+function cwd() {
+ return '/';
+}
+function chdir(dir) {
+ throw new Error('process.chdir is not supported');
+}
+function umask() {
+ return 0;
+}
+
+// from https://github.com/kumavis/browser-process-hrtime/blob/master/index.js
+var performance = global$1.performance || {};
+var performanceNow =
+ performance.now ||
+ performance.mozNow ||
+ performance.msNow ||
+ performance.oNow ||
+ performance.webkitNow ||
+ function() {
+ return new Date().getTime();
+ };
+
+// generate timestamp or delta
+// see http://nodejs.org/api/process.html#process_process_hrtime
+function hrtime(previousTimestamp) {
+ var clocktime = performanceNow.call(performance) * 1e-3;
+ var seconds = Math.floor(clocktime);
+ var nanoseconds = Math.floor((clocktime % 1) * 1e9);
+ if (previousTimestamp) {
+ seconds = seconds - previousTimestamp[0];
+ nanoseconds = nanoseconds - previousTimestamp[1];
+ if (nanoseconds < 0) {
+ seconds--;
+ nanoseconds += 1e9;
+ }
+ }
+ return [seconds, nanoseconds];
+}
+
+var startTime = new Date();
+function uptime() {
+ var currentTime = new Date();
+ var dif = currentTime - startTime;
+ return dif / 1000;
+}
+
+var browser$1 = {
+ nextTick: nextTick,
+ title: title,
+ browser: browser,
+ env: env,
+ argv: argv,
+ version: version,
+ versions: versions,
+ on: on,
+ addListener: addListener,
+ once: once,
+ off: off,
+ removeListener: removeListener,
+ removeAllListeners: removeAllListeners,
+ emit: emit,
+ binding: binding,
+ cwd: cwd,
+ chdir: chdir,
+ umask: umask,
+ hrtime: hrtime,
+ platform: platform,
+ release: release,
+ config: config,
+ uptime: uptime,
+};
+
+const os = require('os');
+const tty = require('tty');
+const hasFlag = require('has-flag');
+
+const {env: env$1} = browser$1;
+
+let forceColor;
+if (
+ hasFlag('no-color') ||
+ hasFlag('no-colors') ||
+ hasFlag('color=false') ||
+ hasFlag('color=never')
+) {
+ forceColor = 0;
+} else if (
+ hasFlag('color') ||
+ hasFlag('colors') ||
+ hasFlag('color=true') ||
+ hasFlag('color=always')
+) {
+ forceColor = 1;
+}
+
+if ('FORCE_COLOR' in env$1) {
+ if (env$1.FORCE_COLOR === 'true') {
+ forceColor = 1;
+ } else if (env$1.FORCE_COLOR === 'false') {
+ forceColor = 0;
+ } else {
+ forceColor =
+ env$1.FORCE_COLOR.length === 0
+ ? 1
+ : Math.min(parseInt(env$1.FORCE_COLOR, 10), 3);
+ }
+}
+
+function translateLevel(level) {
+ if (level === 0) {
+ return false;
+ }
+
+ return {
+ level,
+ hasBasic: true,
+ has256: level >= 2,
+ has16m: level >= 3,
+ };
+}
+
+function supportsColor(haveStream, streamIsTTY) {
+ if (forceColor === 0) {
+ return 0;
+ }
+
+ if (
+ hasFlag('color=16m') ||
+ hasFlag('color=full') ||
+ hasFlag('color=truecolor')
+ ) {
+ return 3;
+ }
+
+ if (hasFlag('color=256')) {
+ return 2;
+ }
+
+ if (haveStream && !streamIsTTY && forceColor === undefined) {
+ return 0;
+ }
+
+ const min = forceColor || 0;
+
+ if (env$1.TERM === 'dumb') {
+ return min;
+ }
+
+ if (browser$1.platform === 'win32') {
+ // Windows 10 build 10586 is the first Windows release that supports 256 colors.
+ // Windows 10 build 14931 is the first release that supports 16m/TrueColor.
+ const osRelease = os.release().split('.');
+ if (Number(osRelease[0]) >= 10 && Number(osRelease[2]) >= 10586) {
+ return Number(osRelease[2]) >= 14931 ? 3 : 2;
+ }
+
+ return 1;
+ }
+
+ if ('CI' in env$1) {
+ if (
+ ['TRAVIS', 'CIRCLECI', 'APPVEYOR', 'GITLAB_CI'].some(
+ sign => sign in env$1,
+ ) ||
+ env$1.CI_NAME === 'codeship'
+ ) {
+ return 1;
+ }
+
+ return min;
+ }
+
+ if ('TEAMCITY_VERSION' in env$1) {
+ return /^(9\.(0*[1-9]\d*)\.|\d{2,}\.)/.test(env$1.TEAMCITY_VERSION)
+ ? 1
+ : 0;
+ }
+
+ if ('GITHUB_ACTIONS' in env$1) {
+ return 1;
+ }
+
+ if (env$1.COLORTERM === 'truecolor') {
+ return 3;
+ }
+
+ if ('TERM_PROGRAM' in env$1) {
+ const version = parseInt(
+ (env$1.TERM_PROGRAM_VERSION || '').split('.')[0],
+ 10,
+ );
+
+ switch (env$1.TERM_PROGRAM) {
+ case 'iTerm.app':
+ return version >= 3 ? 3 : 2;
+ case 'Apple_Terminal':
+ return 2;
+ // No default
+ }
+ }
+
+ if (/-256(color)?$/i.test(env$1.TERM)) {
+ return 2;
+ }
+
+ if (
+ /^screen|^xterm|^vt100|^vt220|^rxvt|color|ansi|cygwin|linux/i.test(
+ env$1.TERM,
+ )
+ ) {
+ return 1;
+ }
+
+ if ('COLORTERM' in env$1) {
+ return 1;
+ }
+
+ return min;
+}
+
+function getSupportLevel(stream) {
+ const level = supportsColor(stream, stream && stream.isTTY);
+ return translateLevel(level);
+}
+
+module.exports = {
+ supportsColor: getSupportLevel,
+ stdout: translateLevel(supportsColor(true, tty.isatty(1))),
+ stderr: translateLevel(supportsColor(true, tty.isatty(2))),
+};
+
+var supportsColor$1 = /*#__PURE__*/ Object.freeze({
+ __proto__: null,
+});
+
+const stringReplaceAll = (string, substring, replacer) => {
+ let index = string.indexOf(substring);
+ if (index === -1) {
+ return string;
+ }
+
+ const substringLength = substring.length;
+ let endIndex = 0;
+ let returnValue = '';
+ do {
+ returnValue +=
+ string.substr(endIndex, index - endIndex) + substring + replacer;
+ endIndex = index + substringLength;
+ index = string.indexOf(substring, endIndex);
+ } while (index !== -1);
+
+ returnValue += string.substr(endIndex);
+ return returnValue;
+};
+
+const stringEncaseCRLFWithFirstIndex = (string, prefix, postfix, index) => {
+ let endIndex = 0;
+ let returnValue = '';
+ do {
+ const gotCR = string[index - 1] === '\r';
+ returnValue +=
+ string.substr(endIndex, (gotCR ? index - 1 : index) - endIndex) +
+ prefix +
+ (gotCR ? '\r\n' : '\n') +
+ postfix;
+ endIndex = index + 1;
+ index = string.indexOf('\n', endIndex);
+ } while (index !== -1);
+
+ returnValue += string.substr(endIndex);
+ return returnValue;
+};
+
+var util = {
+ stringReplaceAll,
+ stringEncaseCRLFWithFirstIndex,
+};
+
+const TEMPLATE_REGEX = /(?:\\(u(?:[a-f\d]{4}|\{[a-f\d]{1,6}\})|x[a-f\d]{2}|.))|(?:\{(~)?(\w+(?:\([^)]*\))?(?:\.\w+(?:\([^)]*\))?)*)(?:[ \t]|(?=\r?\n)))|(\})|((?:.|[\r\n\f])+?)/gi;
+const STYLE_REGEX = /(?:^|\.)(\w+)(?:\(([^)]*)\))?/g;
+const STRING_REGEX = /^(['"])((?:\\.|(?!\1)[^\\])*)\1$/;
+const ESCAPE_REGEX = /\\(u(?:[a-f\d]{4}|\{[a-f\d]{1,6}\})|x[a-f\d]{2}|.)|([^\\])/gi;
+
+const ESCAPES = new Map([
+ ['n', '\n'],
+ ['r', '\r'],
+ ['t', '\t'],
+ ['b', '\b'],
+ ['f', '\f'],
+ ['v', '\v'],
+ ['0', '\0'],
+ ['\\', '\\'],
+ ['e', '\u001B'],
+ ['a', '\u0007'],
+]);
+
+function unescape(c) {
+ const u = c[0] === 'u';
+ const bracket = c[1] === '{';
+
+ if ((u && !bracket && c.length === 5) || (c[0] === 'x' && c.length === 3)) {
+ return String.fromCharCode(parseInt(c.slice(1), 16));
+ }
+
+ if (u && bracket) {
+ return String.fromCodePoint(parseInt(c.slice(2, -1), 16));
+ }
+
+ return ESCAPES.get(c) || c;
+}
+
+function parseArguments(name, arguments_) {
+ const results = [];
+ const chunks = arguments_.trim().split(/\s*,\s*/g);
+ let matches;
+
+ for (const chunk of chunks) {
+ const number = Number(chunk);
+ if (!Number.isNaN(number)) {
+ results.push(number);
+ } else if ((matches = chunk.match(STRING_REGEX))) {
+ results.push(
+ matches[2].replace(ESCAPE_REGEX, (m, escape, character) =>
+ escape ? unescape(escape) : character,
+ ),
+ );
+ } else {
+ throw new Error(
+ `Invalid Chalk template style argument: ${chunk} (in style '${name}')`,
+ );
+ }
+ }
+
+ return results;
+}
+
+function parseStyle(style) {
+ STYLE_REGEX.lastIndex = 0;
+
+ const results = [];
+ let matches;
+
+ while ((matches = STYLE_REGEX.exec(style)) !== null) {
+ const name = matches[1];
+
+ if (matches[2]) {
+ const args = parseArguments(name, matches[2]);
+ results.push([name].concat(args));
+ } else {
+ results.push([name]);
+ }
+ }
+
+ return results;
+}
+
+function buildStyle(chalk, styles) {
+ const enabled = {};
+
+ for (const layer of styles) {
+ for (const style of layer.styles) {
+ enabled[style[0]] = layer.inverse ? null : style.slice(1);
+ }
+ }
+
+ let current = chalk;
+ for (const [styleName, styles] of Object.entries(enabled)) {
+ if (!Array.isArray(styles)) {
+ continue;
+ }
+
+ if (!(styleName in current)) {
+ throw new Error(`Unknown Chalk style: ${styleName}`);
+ }
+
+ current =
+ styles.length > 0
+ ? current[styleName](...styles)
+ : current[styleName];
+ }
+
+ return current;
+}
+
+var templates = (chalk, temporary) => {
+ const styles = [];
+ const chunks = [];
+ let chunk = [];
+
+ // eslint-disable-next-line max-params
+ temporary.replace(
+ TEMPLATE_REGEX,
+ (m, escapeCharacter, inverse, style, close, character) => {
+ if (escapeCharacter) {
+ chunk.push(unescape(escapeCharacter));
+ } else if (style) {
+ const string = chunk.join('');
+ chunk = [];
+ chunks.push(
+ styles.length === 0
+ ? string
+ : buildStyle(chalk, styles)(string),
+ );
+ styles.push({inverse, styles: parseStyle(style)});
+ } else if (close) {
+ if (styles.length === 0) {
+ throw new Error(
+ 'Found extraneous } in Chalk template literal',
+ );
+ }
+
+ chunks.push(buildStyle(chalk, styles)(chunk.join('')));
+ chunk = [];
+ styles.pop();
+ } else {
+ chunk.push(character);
+ }
+ },
+ );
+
+ chunks.push(chunk.join(''));
+
+ if (styles.length > 0) {
+ const errMsg = `Chalk template literal is missing ${
+ styles.length
+ } closing bracket${styles.length === 1 ? '' : 's'} (\`}\`)`;
+ throw new Error(errMsg);
+ }
+
+ return chunks.join('');
+};
+
+const {stdout: stdoutColor, stderr: stderrColor} = supportsColor$1;
+const {
+ stringReplaceAll: stringReplaceAll$1,
+ stringEncaseCRLFWithFirstIndex: stringEncaseCRLFWithFirstIndex$1,
+} = util;
+
+// `supportsColor.level` → `ansiStyles.color[name]` mapping
+const levelMapping = ['ansi', 'ansi', 'ansi256', 'ansi16m'];
+
+const styles = Object.create(null);
+
+const applyOptions = (object, options = {}) => {
+ if (options.level > 3 || options.level < 0) {
+ throw new Error('The `level` option should be an integer from 0 to 3');
+ }
+
+ // Detect level if not set manually
+ const colorLevel = stdoutColor ? stdoutColor.level : 0;
+ object.level = options.level === undefined ? colorLevel : options.level;
+};
+
+class ChalkClass {
+ constructor(options) {
+ return chalkFactory(options);
+ }
+}
+
+const chalkFactory = options => {
+ const chalk = {};
+ applyOptions(chalk, options);
+
+ chalk.template = (...arguments_) => chalkTag(chalk.template, ...arguments_);
+
+ Object.setPrototypeOf(chalk, Chalk.prototype);
+ Object.setPrototypeOf(chalk.template, chalk);
+
+ chalk.template.constructor = () => {
+ throw new Error(
+ '`chalk.constructor()` is deprecated. Use `new chalk.Instance()` instead.',
+ );
+ };
+
+ chalk.template.Instance = ChalkClass;
+
+ return chalk.template;
+};
+
+function Chalk(options) {
+ return chalkFactory(options);
+}
+
+for (const [styleName, style] of Object.entries(ansiStyles)) {
+ styles[styleName] = {
+ get() {
+ const builder = createBuilder(
+ this,
+ createStyler(style.open, style.close, this._styler),
+ this._isEmpty,
+ );
+ Object.defineProperty(this, styleName, {value: builder});
+ return builder;
+ },
+ };
+}
+
+styles.visible = {
+ get() {
+ const builder = createBuilder(this, this._styler, true);
+ Object.defineProperty(this, 'visible', {value: builder});
+ return builder;
+ },
+};
+
+const usedModels = [
+ 'rgb',
+ 'hex',
+ 'keyword',
+ 'hsl',
+ 'hsv',
+ 'hwb',
+ 'ansi',
+ 'ansi256',
+];
+
+for (const model of usedModels) {
+ styles[model] = {
+ get() {
+ const {level} = this;
+ return function(...arguments_) {
+ const styler = createStyler(
+ ansiStyles.color[levelMapping[level]][model](...arguments_),
+ ansiStyles.color.close,
+ this._styler,
+ );
+ return createBuilder(this, styler, this._isEmpty);
+ };
+ },
+ };
+}
+
+for (const model of usedModels) {
+ const bgModel = 'bg' + model[0].toUpperCase() + model.slice(1);
+ styles[bgModel] = {
+ get() {
+ const {level} = this;
+ return function(...arguments_) {
+ const styler = createStyler(
+ ansiStyles.bgColor[levelMapping[level]][model](
+ ...arguments_,
+ ),
+ ansiStyles.bgColor.close,
+ this._styler,
+ );
+ return createBuilder(this, styler, this._isEmpty);
+ };
+ },
+ };
+}
+
+const proto = Object.defineProperties(() => {}, {
+ ...styles,
+ level: {
+ enumerable: true,
+ get() {
+ return this._generator.level;
+ },
+ set(level) {
+ this._generator.level = level;
+ },
+ },
+});
+
+const createStyler = (open, close, parent) => {
+ let openAll;
+ let closeAll;
+ if (parent === undefined) {
+ openAll = open;
+ closeAll = close;
+ } else {
+ openAll = parent.openAll + open;
+ closeAll = close + parent.closeAll;
+ }
+
+ return {
+ open,
+ close,
+ openAll,
+ closeAll,
+ parent,
+ };
+};
+
+const createBuilder = (self, _styler, _isEmpty) => {
+ const builder = (...arguments_) => {
+ // Single argument is hot path, implicit coercion is faster than anything
+ // eslint-disable-next-line no-implicit-coercion
+ return applyStyle(
+ builder,
+ arguments_.length === 1 ? '' + arguments_[0] : arguments_.join(' '),
+ );
+ };
+
+ // `__proto__` is used because we must return a function, but there is
+ // no way to create a function with a different prototype
+ builder.__proto__ = proto; // eslint-disable-line no-proto
+
+ builder._generator = self;
+ builder._styler = _styler;
+ builder._isEmpty = _isEmpty;
+
+ return builder;
+};
+
+const applyStyle = (self, string) => {
+ if (self.level <= 0 || !string) {
+ return self._isEmpty ? '' : string;
+ }
+
+ let styler = self._styler;
+
+ if (styler === undefined) {
+ return string;
+ }
+
+ const {openAll, closeAll} = styler;
+ if (string.indexOf('\u001B') !== -1) {
+ while (styler !== undefined) {
+ // Replace any instances already present with a re-opening code
+ // otherwise only the part of the string until said closing code
+ // will be colored, and the rest will simply be 'plain'.
+ string = stringReplaceAll$1(string, styler.close, styler.open);
+
+ styler = styler.parent;
+ }
+ }
+
+ // We can move both next actions out of loop, because remaining actions in loop won't have
+ // any/visible effect on parts we add here. Close the styling before a linebreak and reopen
+ // after next line to fix a bleed issue on macOS: https://github.com/chalk/chalk/pull/92
+ const lfIndex = string.indexOf('\n');
+ if (lfIndex !== -1) {
+ string = stringEncaseCRLFWithFirstIndex$1(
+ string,
+ closeAll,
+ openAll,
+ lfIndex,
+ );
+ }
+
+ return openAll + string + closeAll;
+};
+
+let template;
+const chalkTag = (chalk, ...strings) => {
+ const [firstString] = strings;
+
+ if (!Array.isArray(firstString)) {
+ // If chalk() was called by itself or with a string,
+ // return the string itself as a string.
+ return strings.join(' ');
+ }
+
+ const arguments_ = strings.slice(1);
+ const parts = [firstString.raw[0]];
+
+ for (let i = 1; i < firstString.length; i++) {
+ parts.push(
+ String(arguments_[i - 1]).replace(/[{}\\]/g, '\\$&'),
+ String(firstString.raw[i]),
+ );
+ }
+
+ if (template === undefined) {
+ template = templates;
+ }
+
+ return template(chalk, parts.join(''));
+};
+
+Object.defineProperties(Chalk.prototype, styles);
+
+const chalk = Chalk(); // eslint-disable-line new-cap
+chalk.supportsColor = stdoutColor;
+chalk.stderr = Chalk({level: stderrColor ? stderrColor.level : 0}); // eslint-disable-line new-cap
+chalk.stderr.supportsColor = stderrColor;
+
+// For TypeScript
+chalk.Level = {
+ None: 0,
+ Basic: 1,
+ Ansi256: 2,
+ TrueColor: 3,
+ 0: 'None',
+ 1: 'Basic',
+ 2: 'Ansi256',
+ 3: 'TrueColor',
+};
+
+var source = chalk;
+
+const escapeStringRegexp = require('escape-string-regexp');
+
+const {platform: platform$1} = browser$1;
+
+const main = {
+ tick: '✔',
+ cross: '✖',
+ star: '★',
+ square: '▇',
+ squareSmall: '◻',
+ squareSmallFilled: '◼',
+ play: '▶',
+ circle: '◯',
+ circleFilled: '◉',
+ circleDotted: '◌',
+ circleDouble: '◎',
+ circleCircle: 'ⓞ',
+ circleCross: 'ⓧ',
+ circlePipe: 'Ⓘ',
+ circleQuestionMark: '?⃝',
+ bullet: '●',
+ dot: '․',
+ line: '─',
+ ellipsis: '…',
+ pointer: '❯',
+ pointerSmall: '›',
+ info: 'ℹ',
+ warning: '⚠',
+ hamburger: '☰',
+ smiley: '㋡',
+ mustache: '෴',
+ heart: '♥',
+ nodejs: '⬢',
+ arrowUp: '↑',
+ arrowDown: '↓',
+ arrowLeft: '←',
+ arrowRight: '→',
+ radioOn: '◉',
+ radioOff: '◯',
+ checkboxOn: '☒',
+ checkboxOff: '☐',
+ checkboxCircleOn: 'ⓧ',
+ checkboxCircleOff: 'Ⓘ',
+ questionMarkPrefix: '?⃝',
+ oneHalf: '½',
+ oneThird: '⅓',
+ oneQuarter: '¼',
+ oneFifth: '⅕',
+ oneSixth: '⅙',
+ oneSeventh: '⅐',
+ oneEighth: '⅛',
+ oneNinth: '⅑',
+ oneTenth: '⅒',
+ twoThirds: '⅔',
+ twoFifths: '⅖',
+ threeQuarters: '¾',
+ threeFifths: '⅗',
+ threeEighths: '⅜',
+ fourFifths: '⅘',
+ fiveSixths: '⅚',
+ fiveEighths: '⅝',
+ sevenEighths: '⅞',
+};
+
+const windows = {
+ tick: '√',
+ cross: '×',
+ star: '*',
+ square: '█',
+ squareSmall: '[ ]',
+ squareSmallFilled: '[█]',
+ play: '►',
+ circle: '( )',
+ circleFilled: '(*)',
+ circleDotted: '( )',
+ circleDouble: '( )',
+ circleCircle: '(○)',
+ circleCross: '(×)',
+ circlePipe: '(│)',
+ circleQuestionMark: '(?)',
+ bullet: '*',
+ dot: '.',
+ line: '─',
+ ellipsis: '...',
+ pointer: '>',
+ pointerSmall: '»',
+ info: 'i',
+ warning: '‼',
+ hamburger: '≡',
+ smiley: '☺',
+ mustache: '┌─┐',
+ heart: main.heart,
+ nodejs: '♦',
+ arrowUp: main.arrowUp,
+ arrowDown: main.arrowDown,
+ arrowLeft: main.arrowLeft,
+ arrowRight: main.arrowRight,
+ radioOn: '(*)',
+ radioOff: '( )',
+ checkboxOn: '[×]',
+ checkboxOff: '[ ]',
+ checkboxCircleOn: '(×)',
+ checkboxCircleOff: '( )',
+ questionMarkPrefix: '？',
+ oneHalf: '1/2',
+ oneThird: '1/3',
+ oneQuarter: '1/4',
+ oneFifth: '1/5',
+ oneSixth: '1/6',
+ oneSeventh: '1/7',
+ oneEighth: '1/8',
+ oneNinth: '1/9',
+ oneTenth: '1/10',
+ twoThirds: '2/3',
+ twoFifths: '2/5',
+ threeQuarters: '3/4',
+ threeFifths: '3/5',
+ threeEighths: '3/8',
+ fourFifths: '4/5',
+ fiveSixths: '5/6',
+ fiveEighths: '5/8',
+ sevenEighths: '7/8',
+};
+
+if (platform$1 === 'linux') {
+ // The main one doesn't look that good on Ubuntu.
+ main.questionMarkPrefix = '?';
+}
+
+const figures = platform$1 === 'win32' ? windows : main;
+
+const fn = string => {
+ if (figures === main) {
+ return string;
+ }
+
+ for (const [key, value] of Object.entries(main)) {
+ if (value === figures[key]) {
+ continue;
+ }
+
+ string = string.replace(
+ new RegExp(escapeStringRegexp(value), 'g'),
+ figures[key],
+ );
+ }
+
+ return string;
+};
+
+module.exports = Object.assign(fn, figures);
+module.exports.main = main;
+module.exports.windows = windows;
+
+var figures$1 = /*#__PURE__*/ Object.freeze({
+ __proto__: null,
+});
+
+/**
+ * Separator object
+ * Used to space/separate choices group
+ * @constructor
+ * @param {String} line Separation line content (facultative)
+ */
+
+class Separator {
+ constructor(line) {
+ this.type = 'separator';
+ this.line = source.dim(line || new Array(15).join(figures$1.line));
+ }
+
+ /**
+ * Stringify separator
+ * @return {String} the separator display string
+ */
+ toString() {
+ return this.line;
+ }
+}
+
+/**
+ * Helper function returning false if object is a separator
+ * @param {Object} obj object to test against
+ * @return {Boolean} `false` if object is a separator
+ */
+
+Separator.exclude = function(obj) {
+ return obj.type !== 'separator';
+};
+
+var separator = Separator;
+
+var Stream = require('stream');
+
+// through
+//
+// a stream that does nothing but re-emit the input.
+// useful for aggregating a series of changing but not ending streams into one stream)
+
+exports = module.exports = through;
+through.through = through;
+
+//create a readable writable stream.
+
+function through(write, end, opts) {
+ write =
+ write ||
+ function(data) {
+ this.queue(data);
+ };
+ end =
+ end ||
+ function() {
+ this.queue(null);
+ };
+
+ var ended = false,
+ destroyed = false,
+ buffer = [],
+ _ended = false;
+ var stream = new Stream();
+ stream.readable = stream.writable = true;
+ stream.paused = false;
+
+ // stream.autoPause = !(opts && opts.autoPause === false)
+ stream.autoDestroy = !(opts && opts.autoDestroy === false);
+
+ stream.write = function(data) {
+ write.call(this, data);
+ return !stream.paused;
+ };
+
+ function drain() {
+ while (buffer.length && !stream.paused) {
+ var data = buffer.shift();
+ if (null === data) return stream.emit('end');
+ else stream.emit('data', data);
+ }
+ }
+
+ stream.queue = stream.push = function(data) {
+ // console.error(ended)
+ if (_ended) return stream;
+ if (data === null) _ended = true;
+ buffer.push(data);
+ drain();
+ return stream;
+ };
+
+ //this will be registered as the first 'end' listener
+ //must call destroy next tick, to make sure we're after any
+ //stream piped from here.
+ //this is only a problem if end is not emitted synchronously.
+ //a nicer way to do this is to make sure this is the last listener for 'end'
+
+ stream.on('end', function() {
+ stream.readable = false;
+ if (!stream.writable && stream.autoDestroy)
+ browser$1.nextTick(function() {
+ stream.destroy();
+ });
+ });
+
+ function _end() {
+ stream.writable = false;
+ end.call(stream);
+ if (!stream.readable && stream.autoDestroy) stream.destroy();
+ }
+
+ stream.end = function(data) {
+ if (ended) return;
+ ended = true;
+ if (arguments.length) stream.write(data);
+ _end(); // will emit or queue
+ return stream;
+ };
+
+ stream.destroy = function() {
+ if (destroyed) return;
+ destroyed = true;
+ ended = true;
+ buffer.length = 0;
+ stream.writable = stream.readable = false;
+ stream.emit('close');
+ return stream;
+ };
+
+ stream.pause = function() {
+ if (stream.paused) return;
+ stream.paused = true;
+ return stream;
+ };
+
+ stream.resume = function() {
+ if (stream.paused) {
+ stream.paused = false;
+ stream.emit('resume');
+ }
+ drain();
+ //may have become paused again,
+ //as drain emits 'data'.
+ if (!stream.paused) stream.emit('drain');
+ return stream;
+ };
+ return stream;
+}
+
+var through$1 = /*#__PURE__*/ Object.freeze({
+ __proto__: null,
+});
+
+var _ = require('lodash');
+var MuteStream = require('mute-stream');
+var readline = require('readline');
+
+/**
+ * Base interface class other can inherits from
+ */
+
+class UI {
+ constructor(opt) {
+ // Instantiate the Readline interface
+ // @Note: Don't reassign if already present (allow test to override the Stream)
+ if (!this.rl) {
+ this.rl = readline.createInterface(setupReadlineOptions(opt));
+ }
+
+ this.rl.resume();
+
+ this.onForceClose = this.onForceClose.bind(this);
+
+ // Make sure new prompt start on a newline when closing
+ browser$1.on('exit', this.onForceClose);
+
+ // Terminate process on SIGINT (which will call process.on('exit') in return)
+ this.rl.on('SIGINT', this.onForceClose);
+ }
+
+ /**
+ * Handle the ^C exit
+ * @return {null}
+ */
+
+ onForceClose() {
+ this.close();
+ browser$1.kill(browser$1.pid, 'SIGINT');
+ console.log('');
+ }
+
+ /**
+ * Close the interface and cleanup listeners
+ */
+
+ close() {
+ // Remove events listeners
+ this.rl.removeListener('SIGINT', this.onForceClose);
+ browser$1.removeListener('exit', this.onForceClose);
+
+ this.rl.output.unmute();
+
+ if (
+ this.activePrompt &&
+ typeof this.activePrompt.close === 'function'
+ ) {
+ this.activePrompt.close();
+ }
+
+ // Close the readline
+ this.rl.output.end();
+ this.rl.pause();
+ this.rl.close();
+ }
+}
+
+function setupReadlineOptions(opt) {
+ opt = opt || {};
+ // Inquirer 8.x:
+ // opt.skipTTYChecks = opt.skipTTYChecks === undefined ? opt.input !== undefined : opt.skipTTYChecks;
+ opt.skipTTYChecks =
+ opt.skipTTYChecks === undefined ? true : opt.skipTTYChecks;
+
+ // Default `input` to stdin
+ var input = opt.input || browser$1.stdin;
+
+ // Check if prompt is being called in TTY environment
+ // If it isn't return a failed promise
+ if (!opt.skipTTYChecks && !input.isTTY) {
+ const nonTtyError = new Error(
+ 'Prompts can not be meaningfully rendered in non-TTY environments',
+ );
+ nonTtyError.isTtyError = true;
+ throw nonTtyError;
+ }
+
+ // Add mute capabilities to the output
+ var ms = new MuteStream();
+ ms.pipe(opt.output || browser$1.stdout);
+ var output = ms;
+
+ return _.extend(
+ {
+ terminal: true,
+ input: input,
+ output: output,
+ },
+ _.omit(opt, ['input', 'output']),
+ );
+}
+
+module.exports = UI;
+
+var baseUI = /*#__PURE__*/ Object.freeze({
+ __proto__: null,
+});
+
+const ansiEscapes = module.exports;
+// TODO: remove this in the next major version
+module.exports.default = ansiEscapes;
+
+const ESC = '\u001B[';
+const OSC = '\u001B]';
+const BEL = '\u0007';
+const SEP = ';';
+const isTerminalApp = browser$1.env.TERM_PROGRAM === 'Apple_Terminal';
+
+ansiEscapes.cursorTo = (x, y) => {
+ if (typeof x !== 'number') {
+ throw new TypeError('The `x` argument is required');
+ }
+
+ if (typeof y !== 'number') {
+ return ESC + (x + 1) + 'G';
+ }
+
+ return ESC + (y + 1) + ';' + (x + 1) + 'H';
+};
+
+ansiEscapes.cursorMove = (x, y) => {
+ if (typeof x !== 'number') {
+ throw new TypeError('The `x` argument is required');
+ }
+
+ let ret = '';
+
+ if (x < 0) {
+ ret += ESC + -x + 'D';
+ } else if (x > 0) {
+ ret += ESC + x + 'C';
+ }
+
+ if (y < 0) {
+ ret += ESC + -y + 'A';
+ } else if (y > 0) {
+ ret += ESC + y + 'B';
+ }
+
+ return ret;
+};
+
+ansiEscapes.cursorUp = (count = 1) => ESC + count + 'A';
+ansiEscapes.cursorDown = (count = 1) => ESC + count + 'B';
+ansiEscapes.cursorForward = (count = 1) => ESC + count + 'C';
+ansiEscapes.cursorBackward = (count = 1) => ESC + count + 'D';
+
+ansiEscapes.cursorLeft = ESC + 'G';
+ansiEscapes.cursorSavePosition = isTerminalApp ? '\u001B7' : ESC + 's';
+ansiEscapes.cursorRestorePosition = isTerminalApp ? '\u001B8' : ESC + 'u';
+ansiEscapes.cursorGetPosition = ESC + '6n';
+ansiEscapes.cursorNextLine = ESC + 'E';
+ansiEscapes.cursorPrevLine = ESC + 'F';
+ansiEscapes.cursorHide = ESC + '?25l';
+ansiEscapes.cursorShow = ESC + '?25h';
+
+ansiEscapes.eraseLines = count => {
+ let clear = '';
+
+ for (let i = 0; i < count; i++) {
+ clear +=
+ ansiEscapes.eraseLine +
+ (i < count - 1 ? ansiEscapes.cursorUp() : '');
+ }
+
+ if (count) {
+ clear += ansiEscapes.cursorLeft;
+ }
+
+ return clear;
+};
+
+ansiEscapes.eraseEndLine = ESC + 'K';
+ansiEscapes.eraseStartLine = ESC + '1K';
+ansiEscapes.eraseLine = ESC + '2K';
+ansiEscapes.eraseDown = ESC + 'J';
+ansiEscapes.eraseUp = ESC + '1J';
+ansiEscapes.eraseScreen = ESC + '2J';
+ansiEscapes.scrollUp = ESC + 'S';
+ansiEscapes.scrollDown = ESC + 'T';
+
+ansiEscapes.clearScreen = '\u001Bc';
+
+ansiEscapes.clearTerminal =
+ browser$1.platform === 'win32'
+ ? `${ansiEscapes.eraseScreen}${ESC}0f`
+ : // 1. Erases the screen (Only done in case `2` is not supported)
+ // 2. Erases the whole screen including scrollback buffer
+ // 3. Moves cursor to the top-left position
+ // More info: https://www.real-world-systems.com/docs/ANSIcode.html
+ `${ansiEscapes.eraseScreen}${ESC}3J${ESC}H`;
+
+ansiEscapes.beep = BEL;
+
+ansiEscapes.link = (text, url) => {
+ return [OSC, '8', SEP, SEP, url, BEL, text, OSC, '8', SEP, SEP, BEL].join(
+ '',
+ );
+};
+
+ansiEscapes.image = (buffer, options = {}) => {
+ let ret = `${OSC}1337;File=inline=1`;
+
+ if (options.width) {
+ ret += `;width=${options.width}`;
+ }
+
+ if (options.height) {
+ ret += `;height=${options.height}`;
+ }
+
+ if (options.preserveAspectRatio === false) {
+ ret += ';preserveAspectRatio=0';
+ }
+
+ return ret + ':' + buffer.toString('base64') + BEL;
+};
+
+ansiEscapes.iTerm = {
+ setCwd: (cwd = browser$1.cwd()) => `${OSC}50;CurrentDir=${cwd}${BEL}`,
+
+ annotation: (message, options = {}) => {
+ let ret = `${OSC}1337;`;
+
+ const hasX = typeof options.x !== 'undefined';
+ const hasY = typeof options.y !== 'undefined';
+ if (
+ (hasX || hasY) &&
+ !(hasX && hasY && typeof options.length !== 'undefined')
+ ) {
+ throw new Error(
+ '`x`, `y` and `length` must be defined when `x` or `y` is defined',
+ );
+ }
+
+ message = message.replace(/\|/g, '');
+
+ ret += options.isHidden ? 'AddHiddenAnnotation=' : 'AddAnnotation=';
+
+ if (options.length > 0) {
+ ret += (hasX
+ ? [message, options.length, options.x, options.y]
+ : [options.length, message]
+ ).join('|');
+ } else {
+ ret += message;
+ }
+
+ return ret + BEL;
+ },
+};
+
+var ansiEscapes$1 = /*#__PURE__*/ Object.freeze({
+ __proto__: null,
+});
+
+/**
+ * Move cursor left by `x`
+ * @param {Readline} rl - Readline instance
+ * @param {Number} x - How far to go left (default to 1)
+ */
+
+var left = function(rl, x) {
+ rl.output.write(ansiEscapes$1.cursorBackward(x));
+};
+
+/**
+ * Move cursor right by `x`
+ * @param {Readline} rl - Readline instance
+ * @param {Number} x - How far to go left (default to 1)
+ */
+
+var right = function(rl, x) {
+ rl.output.write(ansiEscapes$1.cursorForward(x));
+};
+
+/**
+ * Move cursor up by `x`
+ * @param {Readline} rl - Readline instance
+ * @param {Number} x - How far to go up (default to 1)
+ */
+
+var up = function(rl, x) {
+ rl.output.write(ansiEscapes$1.cursorUp(x));
+};
+
+/**
+ * Move cursor down by `x`
+ * @param {Readline} rl - Readline instance
+ * @param {Number} x - How far to go down (default to 1)
+ */
+
+var down = function(rl, x) {
+ rl.output.write(ansiEscapes$1.cursorDown(x));
+};
+
+/**
+ * Clear current line
+ * @param {Readline} rl - Readline instance
+ * @param {Number} len - number of line to delete
+ */
+var clearLine = function(rl, len) {
+ rl.output.write(ansiEscapes$1.eraseLines(len));
+};
+
+var readline$1 = {
+ left: left,
+ right: right,
+ up: up,
+ down: down,
+ clearLine: clearLine,
+};
+
+(function() {
+ /** Used as a safe reference for `undefined` in pre-ES5 environments. */
+ var undefined$1;
+
+ /** Used as the semantic version number. */
+ var VERSION = '4.17.15';
+
+ /** Used as the size to enable large array optimizations. */
+ var LARGE_ARRAY_SIZE = 200;
+
+ /** Error message constants. */
+ var CORE_ERROR_TEXT =
+ 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.',
+ FUNC_ERROR_TEXT = 'Expected a function';
+
+ /** Used to stand-in for `undefined` hash values. */
+ var HASH_UNDEFINED = '__lodash_hash_undefined__';
+
+ /** Used as the maximum memoize cache size. */
+ var MAX_MEMOIZE_SIZE = 500;
+
+ /** Used as the internal argument placeholder. */
+ var PLACEHOLDER = '__lodash_placeholder__';
+
+ /** Used to compose bitmasks for cloning. */
+ var CLONE_DEEP_FLAG = 1,
+ CLONE_FLAT_FLAG = 2,
+ CLONE_SYMBOLS_FLAG = 4;
+
+ /** Used to compose bitmasks for value comparisons. */
+ var COMPARE_PARTIAL_FLAG = 1,
+ COMPARE_UNORDERED_FLAG = 2;
+
+ /** Used to compose bitmasks for function metadata. */
+ var WRAP_BIND_FLAG = 1,
+ WRAP_BIND_KEY_FLAG = 2,
+ WRAP_CURRY_BOUND_FLAG = 4,
+ WRAP_CURRY_FLAG = 8,
+ WRAP_CURRY_RIGHT_FLAG = 16,
+ WRAP_PARTIAL_FLAG = 32,
+ WRAP_PARTIAL_RIGHT_FLAG = 64,
+ WRAP_ARY_FLAG = 128,
+ WRAP_REARG_FLAG = 256,
+ WRAP_FLIP_FLAG = 512;
+
+ /** Used as default options for `_.truncate`. */
+ var DEFAULT_TRUNC_LENGTH = 30,
+ DEFAULT_TRUNC_OMISSION = '...';
+
+ /** Used to detect hot functions by number of calls within a span of milliseconds. */
+ var HOT_COUNT = 800,
+ HOT_SPAN = 16;
+
+ /** Used to indicate the type of lazy iteratees. */
+ var LAZY_FILTER_FLAG = 1,
+ LAZY_MAP_FLAG = 2,
+ LAZY_WHILE_FLAG = 3;
+
+ /** Used as references for various `Number` constants. */
+ var INFINITY = 1 / 0,
+ MAX_SAFE_INTEGER = 9007199254740991,
+ MAX_INTEGER = 1.7976931348623157e308,
+ NAN = 0 / 0;
+
+ /** Used as references for the maximum length and index of an array. */
+ var MAX_ARRAY_LENGTH = 4294967295,
+ MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,
+ HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;
+
+ /** Used to associate wrap methods with their bit flags. */
+ var wrapFlags = [
+ ['ary', WRAP_ARY_FLAG],
+ ['bind', WRAP_BIND_FLAG],
+ ['bindKey', WRAP_BIND_KEY_FLAG],
+ ['curry', WRAP_CURRY_FLAG],
+ ['curryRight', WRAP_CURRY_RIGHT_FLAG],
+ ['flip', WRAP_FLIP_FLAG],
+ ['partial', WRAP_PARTIAL_FLAG],
+ ['partialRight', WRAP_PARTIAL_RIGHT_FLAG],
+ ['rearg', WRAP_REARG_FLAG],
+ ];
+
+ /** `Object#toString` result references. */
+ var argsTag = '[object Arguments]',
+ arrayTag = '[object Array]',
+ asyncTag = '[object AsyncFunction]',
+ boolTag = '[object Boolean]',
+ dateTag = '[object Date]',
+ domExcTag = '[object DOMException]',
+ errorTag = '[object Error]',
+ funcTag = '[object Function]',
+ genTag = '[object GeneratorFunction]',
+ mapTag = '[object Map]',
+ numberTag = '[object Number]',
+ nullTag = '[object Null]',
+ objectTag = '[object Object]',
+ promiseTag = '[object Promise]',
+ proxyTag = '[object Proxy]',
+ regexpTag = '[object RegExp]',
+ setTag = '[object Set]',
+ stringTag = '[object String]',
+ symbolTag = '[object Symbol]',
+ undefinedTag = '[object Undefined]',
+ weakMapTag = '[object WeakMap]',
+ weakSetTag = '[object WeakSet]';
+
+ var arrayBufferTag = '[object ArrayBuffer]',
+ dataViewTag = '[object DataView]',
+ float32Tag = '[object Float32Array]',
+ float64Tag = '[object Float64Array]',
+ int8Tag = '[object Int8Array]',
+ int16Tag = '[object Int16Array]',
+ int32Tag = '[object Int32Array]',
+ uint8Tag = '[object Uint8Array]',
+ uint8ClampedTag = '[object Uint8ClampedArray]',
+ uint16Tag = '[object Uint16Array]',
+ uint32Tag = '[object Uint32Array]';
+
+ /** Used to match empty string literals in compiled template source. */
+ var reEmptyStringLeading = /\b__p \+= '';/g,
+ reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
+ reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g;
+
+ /** Used to match HTML entities and HTML characters. */
+ var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g,
+ reUnescapedHtml = /[&<>"']/g,
+ reHasEscapedHtml = RegExp(reEscapedHtml.source),
+ reHasUnescapedHtml = RegExp(reUnescapedHtml.source);
+
+ /** Used to match template delimiters. */
+ var reEscape = /<%-([\s\S]+?)%>/g,
+ reEvaluate = /<%([\s\S]+?)%>/g,
+ reInterpolate = /<%=([\s\S]+?)%>/g;
+
+ /** Used to match property names within property paths. */
+ var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/,
+ reIsPlainProp = /^\w*$/,
+ rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g;
+
+ /**
+ * Used to match `RegExp`
+ * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
+ */
+ var reRegExpChar = /[\\^$.*+?()[\]{}|]/g,
+ reHasRegExpChar = RegExp(reRegExpChar.source);
+
+ /** Used to match leading and trailing whitespace. */
+ var reTrim = /^\s+|\s+$/g,
+ reTrimStart = /^\s+/,
+ reTrimEnd = /\s+$/;
+
+ /** Used to match wrap detail comments. */
+ var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/,
+ reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/,
+ reSplitDetails = /,? & /;
+
+ /** Used to match words composed of alphanumeric characters. */
+ var reAsciiWord = /[^\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f]+/g;
+
+ /** Used to match backslashes in property paths. */
+ var reEscapeChar = /\\(\\)?/g;
+
+ /**
+ * Used to match
+ * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components).
+ */
+ var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;
+
+ /** Used to match `RegExp` flags from their coerced string values. */
+ var reFlags = /\w*$/;
+
+ /** Used to detect bad signed hexadecimal string values. */
+ var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;
+
+ /** Used to detect binary string values. */
+ var reIsBinary = /^0b[01]+$/i;
+
+ /** Used to detect host constructors (Safari). */
+ var reIsHostCtor = /^\[object .+?Constructor\]$/;
+
+ /** Used to detect octal string values. */
+ var reIsOctal = /^0o[0-7]+$/i;
+
+ /** Used to detect unsigned integer values. */
+ var reIsUint = /^(?:0|[1-9]\d*)$/;
+
+ /** Used to match Latin Unicode letters (excluding mathematical operators). */
+ var reLatin = /[\xc0-\xd6\xd8-\xf6\xf8-\xff\u0100-\u017f]/g;
+
+ /** Used to ensure capturing order of template delimiters. */
+ var reNoMatch = /($^)/;
+
+ /** Used to match unescaped characters in compiled string literals. */
+ var reUnescapedString = /['\n\r\u2028\u2029\\]/g;
+
+ /** Used to compose unicode character classes. */
+ var rsAstralRange = '\\ud800-\\udfff',
+ rsComboMarksRange = '\\u0300-\\u036f',
+ reComboHalfMarksRange = '\\ufe20-\\ufe2f',
+ rsComboSymbolsRange = '\\u20d0-\\u20ff',
+ rsComboRange =
+ rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,
+ rsDingbatRange = '\\u2700-\\u27bf',
+ rsLowerRange = 'a-z\\xdf-\\xf6\\xf8-\\xff',
+ rsMathOpRange = '\\xac\\xb1\\xd7\\xf7',
+ rsNonCharRange = '\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\xbf',
+ rsPunctuationRange = '\\u2000-\\u206f',
+ rsSpaceRange =
+ ' \\t\\x0b\\f\\xa0\\ufeff\\n\\r\\u2028\\u2029\\u1680\\u180e\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200a\\u202f\\u205f\\u3000',
+ rsUpperRange = 'A-Z\\xc0-\\xd6\\xd8-\\xde',
+ rsVarRange = '\\ufe0e\\ufe0f',
+ rsBreakRange =
+ rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange;
+
+ /** Used to compose unicode capture groups. */
+ var rsApos = "['\u2019]",
+ rsAstral = '[' + rsAstralRange + ']',
+ rsBreak = '[' + rsBreakRange + ']',
+ rsCombo = '[' + rsComboRange + ']',
+ rsDigits = '\\d+',
+ rsDingbat = '[' + rsDingbatRange + ']',
+ rsLower = '[' + rsLowerRange + ']',
+ rsMisc =
+ '[^' +
+ rsAstralRange +
+ rsBreakRange +
+ rsDigits +
+ rsDingbatRange +
+ rsLowerRange +
+ rsUpperRange +
+ ']',
+ rsFitz = '\\ud83c[\\udffb-\\udfff]',
+ rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',
+ rsNonAstral = '[^' + rsAstralRange + ']',
+ rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}',
+ rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]',
+ rsUpper = '[' + rsUpperRange + ']',
+ rsZWJ = '\\u200d';
+
+ /** Used to compose unicode regexes. */
+ var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')',
+ rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')',
+ rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',
+ rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',
+ reOptMod = rsModifier + '?',
+ rsOptVar = '[' + rsVarRange + ']?',
+ rsOptJoin =
+ '(?:' +
+ rsZWJ +
+ '(?:' +
+ [rsNonAstral, rsRegional, rsSurrPair].join('|') +
+ ')' +
+ rsOptVar +
+ reOptMod +
+ ')*',
+ rsOrdLower = '\\d*(?:1st|2nd|3rd|(?![123])\\dth)(?=\\b|[A-Z_])',
+ rsOrdUpper = '\\d*(?:1ST|2ND|3RD|(?![123])\\dTH)(?=\\b|[a-z_])',
+ rsSeq = rsOptVar + reOptMod + rsOptJoin,
+ rsEmoji =
+ '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq,
+ rsSymbol =
+ '(?:' +
+ [
+ rsNonAstral + rsCombo + '?',
+ rsCombo,
+ rsRegional,
+ rsSurrPair,
+ rsAstral,
+ ].join('|') +
+ ')';
+
+ /** Used to match apostrophes. */
+ var reApos = RegExp(rsApos, 'g');
+
+ /**
+ * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and
+ * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).
+ */
+ var reComboMark = RegExp(rsCombo, 'g');
+
+ /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */
+ var reUnicode = RegExp(
+ rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq,
+ 'g',
+ );
+
+ /** Used to match complex or compound words. */
+ var reUnicodeWord = RegExp(
+ [
+ rsUpper +
+ '?' +
+ rsLower +
+ '+' +
+ rsOptContrLower +
+ '(?=' +
+ [rsBreak, rsUpper, '$'].join('|') +
+ ')',
+ rsMiscUpper +
+ '+' +
+ rsOptContrUpper +
+ '(?=' +
+ [rsBreak, rsUpper + rsMiscLower, '$'].join('|') +
+ ')',
+ rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower,
+ rsUpper + '+' + rsOptContrUpper,
+ rsOrdUpper,
+ rsOrdLower,
+ rsDigits,
+ rsEmoji,
+ ].join('|'),
+ 'g',
+ );
+
+ /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */
+ var reHasUnicode = RegExp(
+ '[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']',
+ );
+
+ /** Used to detect strings that need a more robust regexp to match words. */
+ var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/;
+
+ /** Used to assign default `context` object properties. */
+ var contextProps = [
+ 'Array',
+ 'Buffer',
+ 'DataView',
+ 'Date',
+ 'Error',
+ 'Float32Array',
+ 'Float64Array',
+ 'Function',
+ 'Int8Array',
+ 'Int16Array',
+ 'Int32Array',
+ 'Map',
+ 'Math',
+ 'Object',
+ 'Promise',
+ 'RegExp',
+ 'Set',
+ 'String',
+ 'Symbol',
+ 'TypeError',
+ 'Uint8Array',
+ 'Uint8ClampedArray',
+ 'Uint16Array',
+ 'Uint32Array',
+ 'WeakMap',
+ '_',
+ 'clearTimeout',
+ 'isFinite',
+ 'parseInt',
+ 'setTimeout',
+ ];
+
+ /** Used to make template sourceURLs easier to identify. */
+ var templateCounter = -1;
+
+ /** Used to identify `toStringTag` values of typed arrays. */
+ var typedArrayTags = {};
+ typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = typedArrayTags[
+ int8Tag
+ ] = typedArrayTags[int16Tag] = typedArrayTags[int32Tag] = typedArrayTags[
+ uint8Tag
+ ] = typedArrayTags[uint8ClampedTag] = typedArrayTags[
+ uint16Tag
+ ] = typedArrayTags[uint32Tag] = true;
+ typedArrayTags[argsTag] = typedArrayTags[arrayTag] = typedArrayTags[
+ arrayBufferTag
+ ] = typedArrayTags[boolTag] = typedArrayTags[dataViewTag] = typedArrayTags[
+ dateTag
+ ] = typedArrayTags[errorTag] = typedArrayTags[funcTag] = typedArrayTags[
+ mapTag
+ ] = typedArrayTags[numberTag] = typedArrayTags[objectTag] = typedArrayTags[
+ regexpTag
+ ] = typedArrayTags[setTag] = typedArrayTags[stringTag] = typedArrayTags[
+ weakMapTag
+ ] = false;
+
+ /** Used to identify `toStringTag` values supported by `_.clone`. */
+ var cloneableTags = {};
+ cloneableTags[argsTag] = cloneableTags[arrayTag] = cloneableTags[
+ arrayBufferTag
+ ] = cloneableTags[dataViewTag] = cloneableTags[boolTag] = cloneableTags[
+ dateTag
+ ] = cloneableTags[float32Tag] = cloneableTags[float64Tag] = cloneableTags[
+ int8Tag
+ ] = cloneableTags[int16Tag] = cloneableTags[int32Tag] = cloneableTags[
+ mapTag
+ ] = cloneableTags[numberTag] = cloneableTags[objectTag] = cloneableTags[
+ regexpTag
+ ] = cloneableTags[setTag] = cloneableTags[stringTag] = cloneableTags[
+ symbolTag
+ ] = cloneableTags[uint8Tag] = cloneableTags[
+ uint8ClampedTag
+ ] = cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;
+ cloneableTags[errorTag] = cloneableTags[funcTag] = cloneableTags[
+ weakMapTag
+ ] = false;
+
+ /** Used to map Latin Unicode letters to basic Latin letters. */
+ var deburredLetters = {
+ // Latin-1 Supplement block.
+ À: 'A',
+ Á: 'A',
+ Â: 'A',
+ Ã: 'A',
+ Ä: 'A',
+ Å: 'A',
+ à: 'a',
+ á: 'a',
+ â: 'a',
+ ã: 'a',
+ ä: 'a',
+ å: 'a',
+ Ç: 'C',
+ ç: 'c',
+ Ð: 'D',
+ ð: 'd',
+ È: 'E',
+ É: 'E',
+ Ê: 'E',
+ Ë: 'E',
+ è: 'e',
+ é: 'e',
+ ê: 'e',
+ ë: 'e',
+ Ì: 'I',
+ Í: 'I',
+ Î: 'I',
+ Ï: 'I',
+ ì: 'i',
+ í: 'i',
+ î: 'i',
+ ï: 'i',
+ Ñ: 'N',
+ ñ: 'n',
+ Ò: 'O',
+ Ó: 'O',
+ Ô: 'O',
+ Õ: 'O',
+ Ö: 'O',
+ Ø: 'O',
+ ò: 'o',
+ ó: 'o',
+ ô: 'o',
+ õ: 'o',
+ ö: 'o',
+ ø: 'o',
+ Ù: 'U',
+ Ú: 'U',
+ Û: 'U',
+ Ü: 'U',
+ ù: 'u',
+ ú: 'u',
+ û: 'u',
+ ü: 'u',
+ Ý: 'Y',
+ ý: 'y',
+ ÿ: 'y',
+ Æ: 'Ae',
+ æ: 'ae',
+ Þ: 'Th',
+ þ: 'th',
+ ß: 'ss',
+ // Latin Extended-A block.
+ Ā: 'A',
+ Ă: 'A',
+ Ą: 'A',
+ ā: 'a',
+ ă: 'a',
+ ą: 'a',
+ Ć: 'C',
+ Ĉ: 'C',
+ Ċ: 'C',
+ Č: 'C',
+ ć: 'c',
+ ĉ: 'c',
+ ċ: 'c',
+ č: 'c',
+ Ď: 'D',
+ Đ: 'D',
+ ď: 'd',
+ đ: 'd',
+ Ē: 'E',
+ Ĕ: 'E',
+ Ė: 'E',
+ Ę: 'E',
+ Ě: 'E',
+ ē: 'e',
+ ĕ: 'e',
+ ė: 'e',
+ ę: 'e',
+ ě: 'e',
+ Ĝ: 'G',
+ Ğ: 'G',
+ Ġ: 'G',
+ Ģ: 'G',
+ ĝ: 'g',
+ ğ: 'g',
+ ġ: 'g',
+ ģ: 'g',
+ Ĥ: 'H',
+ Ħ: 'H',
+ ĥ: 'h',
+ ħ: 'h',
+ Ĩ: 'I',
+ Ī: 'I',
+ Ĭ: 'I',
+ Į: 'I',
+ İ: 'I',
+ ĩ: 'i',
+ ī: 'i',
+ ĭ: 'i',
+ į: 'i',
+ ı: 'i',
+ Ĵ: 'J',
+ ĵ: 'j',
+ Ķ: 'K',
+ ķ: 'k',
+ ĸ: 'k',
+ Ĺ: 'L',
+ Ļ: 'L',
+ Ľ: 'L',
+ Ŀ: 'L',
+ Ł: 'L',
+ ĺ: 'l',
+ ļ: 'l',
+ ľ: 'l',
+ ŀ: 'l',
+ ł: 'l',
+ Ń: 'N',
+ Ņ: 'N',
+ Ň: 'N',
+ Ŋ: 'N',
+ ń: 'n',
+ ņ: 'n',
+ ň: 'n',
+ ŋ: 'n',
+ Ō: 'O',
+ Ŏ: 'O',
+ Ő: 'O',
+ ō: 'o',
+ ŏ: 'o',
+ ő: 'o',
+ Ŕ: 'R',
+ Ŗ: 'R',
+ Ř: 'R',
+ ŕ: 'r',
+ ŗ: 'r',
+ ř: 'r',
+ Ś: 'S',
+ Ŝ: 'S',
+ Ş: 'S',
+ Š: 'S',
+ ś: 's',
+ ŝ: 's',
+ ş: 's',
+ š: 's',
+ Ţ: 'T',
+ Ť: 'T',
+ Ŧ: 'T',
+ ţ: 't',
+ ť: 't',
+ ŧ: 't',
+ Ũ: 'U',
+ Ū: 'U',
+ Ŭ: 'U',
+ Ů: 'U',
+ Ű: 'U',
+ Ų: 'U',
+ ũ: 'u',
+ ū: 'u',
+ ŭ: 'u',
+ ů: 'u',
+ ű: 'u',
+ ų: 'u',
+ Ŵ: 'W',
+ ŵ: 'w',
+ Ŷ: 'Y',
+ ŷ: 'y',
+ Ÿ: 'Y',
+ Ź: 'Z',
+ Ż: 'Z',
+ Ž: 'Z',
+ ź: 'z',
+ ż: 'z',
+ ž: 'z',
+ IJ: 'IJ',
+ ij: 'ij',
+ Œ: 'Oe',
+ œ: 'oe',
+ ʼn: "'n",
+ ſ: 's',
+ };
+
+ /** Used to map characters to HTML entities. */
+ var htmlEscapes = {
+ '&': '&',
+ '<': '<',
+ '>': '>',
+ '"': '"',
+ "'": ''',
+ };
+
+ /** Used to map HTML entities to characters. */
+ var htmlUnescapes = {
+ '&': '&',
+ '<': '<',
+ '>': '>',
+ '"': '"',
+ ''': "'",
+ };
+
+ /** Used to escape characters for inclusion in compiled string literals. */
+ var stringEscapes = {
+ '\\': '\\',
+ "'": "'",
+ '\n': 'n',
+ '\r': 'r',
+ '\u2028': 'u2028',
+ '\u2029': 'u2029',
+ };
+
+ /** Built-in method references without a dependency on `root`. */
+ var freeParseFloat = parseFloat,
+ freeParseInt = parseInt;
+
+ /** Detect free variable `global` from Node.js. */
+ var freeGlobal =
+ typeof global$1 == 'object' &&
+ global$1 &&
+ global$1.Object === Object &&
+ global$1;
+
+ /** Detect free variable `self`. */
+ var freeSelf =
+ typeof self == 'object' && self && self.Object === Object && self;
+
+ /** Used as a reference to the global object. */
+ var root = freeGlobal || freeSelf || Function('return this')();
+
+ /** Detect free variable `exports`. */
+ var freeExports =
+ typeof exports == 'object' && exports && !exports.nodeType && exports;
+
+ /** Detect free variable `module`. */
+ var freeModule =
+ freeExports &&
+ typeof module == 'object' &&
+ module &&
+ !module.nodeType &&
+ module;
+
+ /** Detect the popular CommonJS extension `module.exports`. */
+ var moduleExports = freeModule && freeModule.exports === freeExports;
+
+ /** Detect free variable `process` from Node.js. */
+ var freeProcess = moduleExports && freeGlobal.process;
+
+ /** Used to access faster Node.js helpers. */
+ var nodeUtil = (function() {
+ try {
+ // Use `util.types` for Node.js 10+.
+ var types =
+ freeModule &&
+ freeModule.require &&
+ freeModule.require('util').types;
+
+ if (types) {
+ return types;
+ }
+
+ // Legacy `process.binding('util')` for Node.js < 10.
+ return (
+ freeProcess &&
+ freeProcess.binding &&
+ freeProcess.binding('util')
+ );
+ } catch (e) {}
+ })();
+
+ /* Node.js helper references. */
+ var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer,
+ nodeIsDate = nodeUtil && nodeUtil.isDate,
+ nodeIsMap = nodeUtil && nodeUtil.isMap,
+ nodeIsRegExp = nodeUtil && nodeUtil.isRegExp,
+ nodeIsSet = nodeUtil && nodeUtil.isSet,
+ nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;
+
+ /*--------------------------------------------------------------------------*/
+
+ /**
+ * A faster alternative to `Function#apply`, this function invokes `func`
+ * with the `this` binding of `thisArg` and the arguments of `args`.
+ *
+ * @private
+ * @param {Function} func The function to invoke.
+ * @param {*} thisArg The `this` binding of `func`.
+ * @param {Array} args The arguments to invoke `func` with.
+ * @returns {*} Returns the result of `func`.
+ */
+ function apply(func, thisArg, args) {
+ switch (args.length) {
+ case 0:
+ return func.call(thisArg);
+ case 1:
+ return func.call(thisArg, args[0]);
+ case 2:
+ return func.call(thisArg, args[0], args[1]);
+ case 3:
+ return func.call(thisArg, args[0], args[1], args[2]);
+ }
+ return func.apply(thisArg, args);
+ }
+
+ /**
+ * A specialized version of `baseAggregator` for arrays.
+ *
+ * @private
+ * @param {Array} [array] The array to iterate over.
+ * @param {Function} setter The function to set `accumulator` values.
+ * @param {Function} iteratee The iteratee to transform keys.
+ * @param {Object} accumulator The initial aggregated object.
+ * @returns {Function} Returns `accumulator`.
+ */
+ function arrayAggregator(array, setter, iteratee, accumulator) {
+ var index = -1,
+ length = array == null ? 0 : array.length;
+
+ while (++index < length) {
+ var value = array[index];
+ setter(accumulator, value, iteratee(value), array);
+ }
+ return accumulator;
+ }
+
+ /**
+ * A specialized version of `_.forEach` for arrays without support for
+ * iteratee shorthands.
+ *
+ * @private
+ * @param {Array} [array] The array to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @returns {Array} Returns `array`.
+ */
+ function arrayEach(array, iteratee) {
+ var index = -1,
+ length = array == null ? 0 : array.length;
+
+ while (++index < length) {
+ if (iteratee(array[index], index, array) === false) {
+ break;
+ }
+ }
+ return array;
+ }
+
+ /**
+ * A specialized version of `_.forEachRight` for arrays without support for
+ * iteratee shorthands.
+ *
+ * @private
+ * @param {Array} [array] The array to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @returns {Array} Returns `array`.
+ */
+ function arrayEachRight(array, iteratee) {
+ var length = array == null ? 0 : array.length;
+
+ while (length--) {
+ if (iteratee(array[length], length, array) === false) {
+ break;
+ }
+ }
+ return array;
+ }
+
+ /**
+ * A specialized version of `_.every` for arrays without support for
+ * iteratee shorthands.
+ *
+ * @private
+ * @param {Array} [array] The array to iterate over.
+ * @param {Function} predicate The function invoked per iteration.
+ * @returns {boolean} Returns `true` if all elements pass the predicate check,
+ * else `false`.
+ */
+ function arrayEvery(array, predicate) {
+ var index = -1,
+ length = array == null ? 0 : array.length;
+
+ while (++index < length) {
+ if (!predicate(array[index], index, array)) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ /**
+ * A specialized version of `_.filter` for arrays without support for
+ * iteratee shorthands.
+ *
+ * @private
+ * @param {Array} [array] The array to iterate over.
+ * @param {Function} predicate The function invoked per iteration.
+ * @returns {Array} Returns the new filtered array.
+ */
+ function arrayFilter(array, predicate) {
+ var index = -1,
+ length = array == null ? 0 : array.length,
+ resIndex = 0,
+ result = [];
+
+ while (++index < length) {
+ var value = array[index];
+ if (predicate(value, index, array)) {
+ result[resIndex++] = value;
+ }
+ }
+ return result;
+ }
+
+ /**
+ * A specialized version of `_.includes` for arrays without support for
+ * specifying an index to search from.
+ *
+ * @private
+ * @param {Array} [array] The array to inspect.
+ * @param {*} target The value to search for.
+ * @returns {boolean} Returns `true` if `target` is found, else `false`.
+ */
+ function arrayIncludes(array, value) {
+ var length = array == null ? 0 : array.length;
+ return !!length && baseIndexOf(array, value, 0) > -1;
+ }
+
+ /**
+ * This function is like `arrayIncludes` except that it accepts a comparator.
+ *
+ * @private
+ * @param {Array} [array] The array to inspect.
+ * @param {*} target The value to search for.
+ * @param {Function} comparator The comparator invoked per element.
+ * @returns {boolean} Returns `true` if `target` is found, else `false`.
+ */
+ function arrayIncludesWith(array, value, comparator) {
+ var index = -1,
+ length = array == null ? 0 : array.length;
+
+ while (++index < length) {
+ if (comparator(value, array[index])) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ /**
+ * A specialized version of `_.map` for arrays without support for iteratee
+ * shorthands.
+ *
+ * @private
+ * @param {Array} [array] The array to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @returns {Array} Returns the new mapped array.
+ */
+ function arrayMap(array, iteratee) {
+ var index = -1,
+ length = array == null ? 0 : array.length,
+ result = Array(length);
+
+ while (++index < length) {
+ result[index] = iteratee(array[index], index, array);
+ }
+ return result;
+ }
+
+ /**
+ * Appends the elements of `values` to `array`.
+ *
+ * @private
+ * @param {Array} array The array to modify.
+ * @param {Array} values The values to append.
+ * @returns {Array} Returns `array`.
+ */
+ function arrayPush(array, values) {
+ var index = -1,
+ length = values.length,
+ offset = array.length;
+
+ while (++index < length) {
+ array[offset + index] = values[index];
+ }
+ return array;
+ }
+
+ /**
+ * A specialized version of `_.reduce` for arrays without support for
+ * iteratee shorthands.
+ *
+ * @private
+ * @param {Array} [array] The array to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @param {*} [accumulator] The initial value.
+ * @param {boolean} [initAccum] Specify using the first element of `array` as
+ * the initial value.
+ * @returns {*} Returns the accumulated value.
+ */
+ function arrayReduce(array, iteratee, accumulator, initAccum) {
+ var index = -1,
+ length = array == null ? 0 : array.length;
+
+ if (initAccum && length) {
+ accumulator = array[++index];
+ }
+ while (++index < length) {
+ accumulator = iteratee(accumulator, array[index], index, array);
+ }
+ return accumulator;
+ }
+
+ /**
+ * A specialized version of `_.reduceRight` for arrays without support for
+ * iteratee shorthands.
+ *
+ * @private
+ * @param {Array} [array] The array to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @param {*} [accumulator] The initial value.
+ * @param {boolean} [initAccum] Specify using the last element of `array` as
+ * the initial value.
+ * @returns {*} Returns the accumulated value.
+ */
+ function arrayReduceRight(array, iteratee, accumulator, initAccum) {
+ var length = array == null ? 0 : array.length;
+ if (initAccum && length) {
+ accumulator = array[--length];
+ }
+ while (length--) {
+ accumulator = iteratee(accumulator, array[length], length, array);
+ }
+ return accumulator;
+ }
+
+ /**
+ * A specialized version of `_.some` for arrays without support for iteratee
+ * shorthands.
+ *
+ * @private
+ * @param {Array} [array] The array to iterate over.
+ * @param {Function} predicate The function invoked per iteration.
+ * @returns {boolean} Returns `true` if any element passes the predicate check,
+ * else `false`.
+ */
+ function arraySome(array, predicate) {
+ var index = -1,
+ length = array == null ? 0 : array.length;
+
+ while (++index < length) {
+ if (predicate(array[index], index, array)) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ /**
+ * Gets the size of an ASCII `string`.
+ *
+ * @private
+ * @param {string} string The string inspect.
+ * @returns {number} Returns the string size.
+ */
+ var asciiSize = baseProperty('length');
+
+ /**
+ * Converts an ASCII `string` to an array.
+ *
+ * @private
+ * @param {string} string The string to convert.
+ * @returns {Array} Returns the converted array.
+ */
+ function asciiToArray(string) {
+ return string.split('');
+ }
+
+ /**
+ * Splits an ASCII `string` into an array of its words.
+ *
+ * @private
+ * @param {string} The string to inspect.
+ * @returns {Array} Returns the words of `string`.
+ */
+ function asciiWords(string) {
+ return string.match(reAsciiWord) || [];
+ }
+
+ /**
+ * The base implementation of methods like `_.findKey` and `_.findLastKey`,
+ * without support for iteratee shorthands, which iterates over `collection`
+ * using `eachFunc`.
+ *
+ * @private
+ * @param {Array|Object} collection The collection to inspect.
+ * @param {Function} predicate The function invoked per iteration.
+ * @param {Function} eachFunc The function to iterate over `collection`.
+ * @returns {*} Returns the found element or its key, else `undefined`.
+ */
+ function baseFindKey(collection, predicate, eachFunc) {
+ var result;
+ eachFunc(collection, function(value, key, collection) {
+ if (predicate(value, key, collection)) {
+ result = key;
+ return false;
+ }
+ });
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.findIndex` and `_.findLastIndex` without
+ * support for iteratee shorthands.
+ *
+ * @private
+ * @param {Array} array The array to inspect.
+ * @param {Function} predicate The function invoked per iteration.
+ * @param {number} fromIndex The index to search from.
+ * @param {boolean} [fromRight] Specify iterating from right to left.
+ * @returns {number} Returns the index of the matched value, else `-1`.
+ */
+ function baseFindIndex(array, predicate, fromIndex, fromRight) {
+ var length = array.length,
+ index = fromIndex + (fromRight ? 1 : -1);
+
+ while (fromRight ? index-- : ++index < length) {
+ if (predicate(array[index], index, array)) {
+ return index;
+ }
+ }
+ return -1;
+ }
+
+ /**
+ * The base implementation of `_.indexOf` without `fromIndex` bounds checks.
+ *
+ * @private
+ * @param {Array} array The array to inspect.
+ * @param {*} value The value to search for.
+ * @param {number} fromIndex The index to search from.
+ * @returns {number} Returns the index of the matched value, else `-1`.
+ */
+ function baseIndexOf(array, value, fromIndex) {
+ return value === value
+ ? strictIndexOf(array, value, fromIndex)
+ : baseFindIndex(array, baseIsNaN, fromIndex);
+ }
+
+ /**
+ * This function is like `baseIndexOf` except that it accepts a comparator.
+ *
+ * @private
+ * @param {Array} array The array to inspect.
+ * @param {*} value The value to search for.
+ * @param {number} fromIndex The index to search from.
+ * @param {Function} comparator The comparator invoked per element.
+ * @returns {number} Returns the index of the matched value, else `-1`.
+ */
+ function baseIndexOfWith(array, value, fromIndex, comparator) {
+ var index = fromIndex - 1,
+ length = array.length;
+
+ while (++index < length) {
+ if (comparator(array[index], value)) {
+ return index;
+ }
+ }
+ return -1;
+ }
+
+ /**
+ * The base implementation of `_.isNaN` without support for number objects.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
+ */
+ function baseIsNaN(value) {
+ return value !== value;
+ }
+
+ /**
+ * The base implementation of `_.mean` and `_.meanBy` without support for
+ * iteratee shorthands.
+ *
+ * @private
+ * @param {Array} array The array to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @returns {number} Returns the mean.
+ */
+ function baseMean(array, iteratee) {
+ var length = array == null ? 0 : array.length;
+ return length ? baseSum(array, iteratee) / length : NAN;
+ }
+
+ /**
+ * The base implementation of `_.property` without support for deep paths.
+ *
+ * @private
+ * @param {string} key The key of the property to get.
+ * @returns {Function} Returns the new accessor function.
+ */
+ function baseProperty(key) {
+ return function(object) {
+ return object == null ? undefined$1 : object[key];
+ };
+ }
+
+ /**
+ * The base implementation of `_.propertyOf` without support for deep paths.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @returns {Function} Returns the new accessor function.
+ */
+ function basePropertyOf(object) {
+ return function(key) {
+ return object == null ? undefined$1 : object[key];
+ };
+ }
+
+ /**
+ * The base implementation of `_.reduce` and `_.reduceRight`, without support
+ * for iteratee shorthands, which iterates over `collection` using `eachFunc`.
+ *
+ * @private
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @param {*} accumulator The initial value.
+ * @param {boolean} initAccum Specify using the first or last element of
+ * `collection` as the initial value.
+ * @param {Function} eachFunc The function to iterate over `collection`.
+ * @returns {*} Returns the accumulated value.
+ */
+ function baseReduce(
+ collection,
+ iteratee,
+ accumulator,
+ initAccum,
+ eachFunc,
+ ) {
+ eachFunc(collection, function(value, index, collection) {
+ accumulator = initAccum
+ ? ((initAccum = false), value)
+ : iteratee(accumulator, value, index, collection);
+ });
+ return accumulator;
+ }
+
+ /**
+ * The base implementation of `_.sortBy` which uses `comparer` to define the
+ * sort order of `array` and replaces criteria objects with their corresponding
+ * values.
+ *
+ * @private
+ * @param {Array} array The array to sort.
+ * @param {Function} comparer The function to define sort order.
+ * @returns {Array} Returns `array`.
+ */
+ function baseSortBy(array, comparer) {
+ var length = array.length;
+
+ array.sort(comparer);
+ while (length--) {
+ array[length] = array[length].value;
+ }
+ return array;
+ }
+
+ /**
+ * The base implementation of `_.sum` and `_.sumBy` without support for
+ * iteratee shorthands.
+ *
+ * @private
+ * @param {Array} array The array to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @returns {number} Returns the sum.
+ */
+ function baseSum(array, iteratee) {
+ var result,
+ index = -1,
+ length = array.length;
+
+ while (++index < length) {
+ var current = iteratee(array[index]);
+ if (current !== undefined$1) {
+ result = result === undefined$1 ? current : result + current;
+ }
+ }
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.times` without support for iteratee shorthands
+ * or max array length checks.
+ *
+ * @private
+ * @param {number} n The number of times to invoke `iteratee`.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @returns {Array} Returns the array of results.
+ */
+ function baseTimes(n, iteratee) {
+ var index = -1,
+ result = Array(n);
+
+ while (++index < n) {
+ result[index] = iteratee(index);
+ }
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array
+ * of key-value pairs for `object` corresponding to the property names of `props`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @param {Array} props The property names to get values for.
+ * @returns {Object} Returns the key-value pairs.
+ */
+ function baseToPairs(object, props) {
+ return arrayMap(props, function(key) {
+ return [key, object[key]];
+ });
+ }
+
+ /**
+ * The base implementation of `_.unary` without support for storing metadata.
+ *
+ * @private
+ * @param {Function} func The function to cap arguments for.
+ * @returns {Function} Returns the new capped function.
+ */
+ function baseUnary(func) {
+ return function(value) {
+ return func(value);
+ };
+ }
+
+ /**
+ * The base implementation of `_.values` and `_.valuesIn` which creates an
+ * array of `object` property values corresponding to the property names
+ * of `props`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @param {Array} props The property names to get values for.
+ * @returns {Object} Returns the array of property values.
+ */
+ function baseValues(object, props) {
+ return arrayMap(props, function(key) {
+ return object[key];
+ });
+ }
+
+ /**
+ * Checks if a `cache` value for `key` exists.
+ *
+ * @private
+ * @param {Object} cache The cache to query.
+ * @param {string} key The key of the entry to check.
+ * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
+ */
+ function cacheHas(cache, key) {
+ return cache.has(key);
+ }
+
+ /**
+ * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol
+ * that is not found in the character symbols.
+ *
+ * @private
+ * @param {Array} strSymbols The string symbols to inspect.
+ * @param {Array} chrSymbols The character symbols to find.
+ * @returns {number} Returns the index of the first unmatched string symbol.
+ */
+ function charsStartIndex(strSymbols, chrSymbols) {
+ var index = -1,
+ length = strSymbols.length;
+
+ while (
+ ++index < length &&
+ baseIndexOf(chrSymbols, strSymbols[index], 0) > -1
+ ) {}
+ return index;
+ }
+
+ /**
+ * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol
+ * that is not found in the character symbols.
+ *
+ * @private
+ * @param {Array} strSymbols The string symbols to inspect.
+ * @param {Array} chrSymbols The character symbols to find.
+ * @returns {number} Returns the index of the last unmatched string symbol.
+ */
+ function charsEndIndex(strSymbols, chrSymbols) {
+ var index = strSymbols.length;
+
+ while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}
+ return index;
+ }
+
+ /**
+ * Gets the number of `placeholder` occurrences in `array`.
+ *
+ * @private
+ * @param {Array} array The array to inspect.
+ * @param {*} placeholder The placeholder to search for.
+ * @returns {number} Returns the placeholder count.
+ */
+ function countHolders(array, placeholder) {
+ var length = array.length,
+ result = 0;
+
+ while (length--) {
+ if (array[length] === placeholder) {
+ ++result;
+ }
+ }
+ return result;
+ }
+
+ /**
+ * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A
+ * letters to basic Latin letters.
+ *
+ * @private
+ * @param {string} letter The matched letter to deburr.
+ * @returns {string} Returns the deburred letter.
+ */
+ var deburrLetter = basePropertyOf(deburredLetters);
+
+ /**
+ * Used by `_.escape` to convert characters to HTML entities.
+ *
+ * @private
+ * @param {string} chr The matched character to escape.
+ * @returns {string} Returns the escaped character.
+ */
+ var escapeHtmlChar = basePropertyOf(htmlEscapes);
+
+ /**
+ * Used by `_.template` to escape characters for inclusion in compiled string literals.
+ *
+ * @private
+ * @param {string} chr The matched character to escape.
+ * @returns {string} Returns the escaped character.
+ */
+ function escapeStringChar(chr) {
+ return '\\' + stringEscapes[chr];
+ }
+
+ /**
+ * Gets the value at `key` of `object`.
+ *
+ * @private
+ * @param {Object} [object] The object to query.
+ * @param {string} key The key of the property to get.
+ * @returns {*} Returns the property value.
+ */
+ function getValue(object, key) {
+ return object == null ? undefined$1 : object[key];
+ }
+
+ /**
+ * Checks if `string` contains Unicode symbols.
+ *
+ * @private
+ * @param {string} string The string to inspect.
+ * @returns {boolean} Returns `true` if a symbol is found, else `false`.
+ */
+ function hasUnicode(string) {
+ return reHasUnicode.test(string);
+ }
+
+ /**
+ * Checks if `string` contains a word composed of Unicode symbols.
+ *
+ * @private
+ * @param {string} string The string to inspect.
+ * @returns {boolean} Returns `true` if a word is found, else `false`.
+ */
+ function hasUnicodeWord(string) {
+ return reHasUnicodeWord.test(string);
+ }
+
+ /**
+ * Converts `iterator` to an array.
+ *
+ * @private
+ * @param {Object} iterator The iterator to convert.
+ * @returns {Array} Returns the converted array.
+ */
+ function iteratorToArray(iterator) {
+ var data,
+ result = [];
+
+ while (!(data = iterator.next()).done) {
+ result.push(data.value);
+ }
+ return result;
+ }
+
+ /**
+ * Converts `map` to its key-value pairs.
+ *
+ * @private
+ * @param {Object} map The map to convert.
+ * @returns {Array} Returns the key-value pairs.
+ */
+ function mapToArray(map) {
+ var index = -1,
+ result = Array(map.size);
+
+ map.forEach(function(value, key) {
+ result[++index] = [key, value];
+ });
+ return result;
+ }
+
+ /**
+ * Creates a unary function that invokes `func` with its argument transformed.
+ *
+ * @private
+ * @param {Function} func The function to wrap.
+ * @param {Function} transform The argument transform.
+ * @returns {Function} Returns the new function.
+ */
+ function overArg(func, transform) {
+ return function(arg) {
+ return func(transform(arg));
+ };
+ }
+
+ /**
+ * Replaces all `placeholder` elements in `array` with an internal placeholder
+ * and returns an array of their indexes.
+ *
+ * @private
+ * @param {Array} array The array to modify.
+ * @param {*} placeholder The placeholder to replace.
+ * @returns {Array} Returns the new array of placeholder indexes.
+ */
+ function replaceHolders(array, placeholder) {
+ var index = -1,
+ length = array.length,
+ resIndex = 0,
+ result = [];
+
+ while (++index < length) {
+ var value = array[index];
+ if (value === placeholder || value === PLACEHOLDER) {
+ array[index] = PLACEHOLDER;
+ result[resIndex++] = index;
+ }
+ }
+ return result;
+ }
+
+ /**
+ * Converts `set` to an array of its values.
+ *
+ * @private
+ * @param {Object} set The set to convert.
+ * @returns {Array} Returns the values.
+ */
+ function setToArray(set) {
+ var index = -1,
+ result = Array(set.size);
+
+ set.forEach(function(value) {
+ result[++index] = value;
+ });
+ return result;
+ }
+
+ /**
+ * Converts `set` to its value-value pairs.
+ *
+ * @private
+ * @param {Object} set The set to convert.
+ * @returns {Array} Returns the value-value pairs.
+ */
+ function setToPairs(set) {
+ var index = -1,
+ result = Array(set.size);
+
+ set.forEach(function(value) {
+ result[++index] = [value, value];
+ });
+ return result;
+ }
+
+ /**
+ * A specialized version of `_.indexOf` which performs strict equality
+ * comparisons of values, i.e. `===`.
+ *
+ * @private
+ * @param {Array} array The array to inspect.
+ * @param {*} value The value to search for.
+ * @param {number} fromIndex The index to search from.
+ * @returns {number} Returns the index of the matched value, else `-1`.
+ */
+ function strictIndexOf(array, value, fromIndex) {
+ var index = fromIndex - 1,
+ length = array.length;
+
+ while (++index < length) {
+ if (array[index] === value) {
+ return index;
+ }
+ }
+ return -1;
+ }
+
+ /**
+ * A specialized version of `_.lastIndexOf` which performs strict equality
+ * comparisons of values, i.e. `===`.
+ *
+ * @private
+ * @param {Array} array The array to inspect.
+ * @param {*} value The value to search for.
+ * @param {number} fromIndex The index to search from.
+ * @returns {number} Returns the index of the matched value, else `-1`.
+ */
+ function strictLastIndexOf(array, value, fromIndex) {
+ var index = fromIndex + 1;
+ while (index--) {
+ if (array[index] === value) {
+ return index;
+ }
+ }
+ return index;
+ }
+
+ /**
+ * Gets the number of symbols in `string`.
+ *
+ * @private
+ * @param {string} string The string to inspect.
+ * @returns {number} Returns the string size.
+ */
+ function stringSize(string) {
+ return hasUnicode(string) ? unicodeSize(string) : asciiSize(string);
+ }
+
+ /**
+ * Converts `string` to an array.
+ *
+ * @private
+ * @param {string} string The string to convert.
+ * @returns {Array} Returns the converted array.
+ */
+ function stringToArray(string) {
+ return hasUnicode(string)
+ ? unicodeToArray(string)
+ : asciiToArray(string);
+ }
+
+ /**
+ * Used by `_.unescape` to convert HTML entities to characters.
+ *
+ * @private
+ * @param {string} chr The matched character to unescape.
+ * @returns {string} Returns the unescaped character.
+ */
+ var unescapeHtmlChar = basePropertyOf(htmlUnescapes);
+
+ /**
+ * Gets the size of a Unicode `string`.
+ *
+ * @private
+ * @param {string} string The string inspect.
+ * @returns {number} Returns the string size.
+ */
+ function unicodeSize(string) {
+ var result = (reUnicode.lastIndex = 0);
+ while (reUnicode.test(string)) {
+ ++result;
+ }
+ return result;
+ }
+
+ /**
+ * Converts a Unicode `string` to an array.
+ *
+ * @private
+ * @param {string} string The string to convert.
+ * @returns {Array} Returns the converted array.
+ */
+ function unicodeToArray(string) {
+ return string.match(reUnicode) || [];
+ }
+
+ /**
+ * Splits a Unicode `string` into an array of its words.
+ *
+ * @private
+ * @param {string} The string to inspect.
+ * @returns {Array} Returns the words of `string`.
+ */
+ function unicodeWords(string) {
+ return string.match(reUnicodeWord) || [];
+ }
+
+ /*--------------------------------------------------------------------------*/
+
+ /**
+ * Create a new pristine `lodash` function using the `context` object.
+ *
+ * @static
+ * @memberOf _
+ * @since 1.1.0
+ * @category Util
+ * @param {Object} [context=root] The context object.
+ * @returns {Function} Returns a new `lodash` function.
+ * @example
+ *
+ * _.mixin({ 'foo': _.constant('foo') });
+ *
+ * var lodash = _.runInContext();
+ * lodash.mixin({ 'bar': lodash.constant('bar') });
+ *
+ * _.isFunction(_.foo);
+ * // => true
+ * _.isFunction(_.bar);
+ * // => false
+ *
+ * lodash.isFunction(lodash.foo);
+ * // => false
+ * lodash.isFunction(lodash.bar);
+ * // => true
+ *
+ * // Create a suped-up `defer` in Node.js.
+ * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;
+ */
+ var runInContext = function runInContext(context) {
+ context =
+ context == null
+ ? root
+ : _.defaults(
+ root.Object(),
+ context,
+ _.pick(root, contextProps),
+ );
+
+ /** Built-in constructor references. */
+ var Array = context.Array,
+ Date = context.Date,
+ Error = context.Error,
+ Function = context.Function,
+ Math = context.Math,
+ Object = context.Object,
+ RegExp = context.RegExp,
+ String = context.String,
+ TypeError = context.TypeError;
+
+ /** Used for built-in method references. */
+ var arrayProto = Array.prototype,
+ funcProto = Function.prototype,
+ objectProto = Object.prototype;
+
+ /** Used to detect overreaching core-js shims. */
+ var coreJsData = context['__core-js_shared__'];
+
+ /** Used to resolve the decompiled source of functions. */
+ var funcToString = funcProto.toString;
+
+ /** Used to check objects for own properties. */
+ var hasOwnProperty = objectProto.hasOwnProperty;
+
+ /** Used to generate unique IDs. */
+ var idCounter = 0;
+
+ /** Used to detect methods masquerading as native. */
+ var maskSrcKey = (function() {
+ var uid = /[^.]+$/.exec(
+ (coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO) ||
+ '',
+ );
+ return uid ? 'Symbol(src)_1.' + uid : '';
+ })();
+
+ /**
+ * Used to resolve the
+ * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
+ * of values.
+ */
+ var nativeObjectToString = objectProto.toString;
+
+ /** Used to infer the `Object` constructor. */
+ var objectCtorString = funcToString.call(Object);
+
+ /** Used to restore the original `_` reference in `_.noConflict`. */
+ var oldDash = root._;
+
+ /** Used to detect if a method is native. */
+ var reIsNative = RegExp(
+ '^' +
+ funcToString
+ .call(hasOwnProperty)
+ .replace(reRegExpChar, '\\$&')
+ .replace(
+ /hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g,
+ '$1.*?',
+ ) +
+ '$',
+ );
+
+ /** Built-in value references. */
+ var Buffer = moduleExports ? context.Buffer : undefined$1,
+ Symbol = context.Symbol,
+ Uint8Array = context.Uint8Array,
+ allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined$1,
+ getPrototype = overArg(Object.getPrototypeOf, Object),
+ objectCreate = Object.create,
+ propertyIsEnumerable = objectProto.propertyIsEnumerable,
+ splice = arrayProto.splice,
+ spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined$1,
+ symIterator = Symbol ? Symbol.iterator : undefined$1,
+ symToStringTag = Symbol ? Symbol.toStringTag : undefined$1;
+
+ var defineProperty = (function() {
+ try {
+ var func = getNative(Object, 'defineProperty');
+ func({}, '', {});
+ return func;
+ } catch (e) {}
+ })();
+
+ /** Mocked built-ins. */
+ var ctxClearTimeout =
+ context.clearTimeout !== root.clearTimeout &&
+ context.clearTimeout,
+ ctxNow = Date && Date.now !== root.Date.now && Date.now,
+ ctxSetTimeout =
+ context.setTimeout !== root.setTimeout && context.setTimeout;
+
+ /* Built-in method references for those with the same name as other `lodash` methods. */
+ var nativeCeil = Math.ceil,
+ nativeFloor = Math.floor,
+ nativeGetSymbols = Object.getOwnPropertySymbols,
+ nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined$1,
+ nativeIsFinite = context.isFinite,
+ nativeJoin = arrayProto.join,
+ nativeKeys = overArg(Object.keys, Object),
+ nativeMax = Math.max,
+ nativeMin = Math.min,
+ nativeNow = Date.now,
+ nativeParseInt = context.parseInt,
+ nativeRandom = Math.random,
+ nativeReverse = arrayProto.reverse;
+
+ /* Built-in method references that are verified to be native. */
+ var DataView = getNative(context, 'DataView'),
+ Map = getNative(context, 'Map'),
+ Promise = getNative(context, 'Promise'),
+ Set = getNative(context, 'Set'),
+ WeakMap = getNative(context, 'WeakMap'),
+ nativeCreate = getNative(Object, 'create');
+
+ /** Used to store function metadata. */
+ var metaMap = WeakMap && new WeakMap();
+
+ /** Used to lookup unminified function names. */
+ var realNames = {};
+
+ /** Used to detect maps, sets, and weakmaps. */
+ var dataViewCtorString = toSource(DataView),
+ mapCtorString = toSource(Map),
+ promiseCtorString = toSource(Promise),
+ setCtorString = toSource(Set),
+ weakMapCtorString = toSource(WeakMap);
+
+ /** Used to convert symbols to primitives and strings. */
+ var symbolProto = Symbol ? Symbol.prototype : undefined$1,
+ symbolValueOf = symbolProto ? symbolProto.valueOf : undefined$1,
+ symbolToString = symbolProto ? symbolProto.toString : undefined$1;
+
+ /*------------------------------------------------------------------------*/
+
+ /**
+ * Creates a `lodash` object which wraps `value` to enable implicit method
+ * chain sequences. Methods that operate on and return arrays, collections,
+ * and functions can be chained together. Methods that retrieve a single value
+ * or may return a primitive value will automatically end the chain sequence
+ * and return the unwrapped value. Otherwise, the value must be unwrapped
+ * with `_#value`.
+ *
+ * Explicit chain sequences, which must be unwrapped with `_#value`, may be
+ * enabled using `_.chain`.
+ *
+ * The execution of chained methods is lazy, that is, it's deferred until
+ * `_#value` is implicitly or explicitly called.
+ *
+ * Lazy evaluation allows several methods to support shortcut fusion.
+ * Shortcut fusion is an optimization to merge iteratee calls; this avoids
+ * the creation of intermediate arrays and can greatly reduce the number of
+ * iteratee executions. Sections of a chain sequence qualify for shortcut
+ * fusion if the section is applied to an array and iteratees accept only
+ * one argument. The heuristic for whether a section qualifies for shortcut
+ * fusion is subject to change.
+ *
+ * Chaining is supported in custom builds as long as the `_#value` method is
+ * directly or indirectly included in the build.
+ *
+ * In addition to lodash methods, wrappers have `Array` and `String` methods.
+ *
+ * The wrapper `Array` methods are:
+ * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift`
+ *
+ * The wrapper `String` methods are:
+ * `replace` and `split`
+ *
+ * The wrapper methods that support shortcut fusion are:
+ * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`,
+ * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`,
+ * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray`
+ *
+ * The chainable wrapper methods are:
+ * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`,
+ * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`,
+ * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`,
+ * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`,
+ * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`,
+ * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`,
+ * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`,
+ * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`,
+ * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`,
+ * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`,
+ * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`,
+ * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`,
+ * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`,
+ * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`,
+ * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`,
+ * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`,
+ * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`,
+ * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`,
+ * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`,
+ * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`,
+ * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`,
+ * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`,
+ * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`,
+ * `zipObject`, `zipObjectDeep`, and `zipWith`
+ *
+ * The wrapper methods that are **not** chainable by default are:
+ * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`,
+ * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`,
+ * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`,
+ * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`,
+ * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`,
+ * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`,
+ * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`,
+ * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`,
+ * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`,
+ * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`,
+ * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`,
+ * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`,
+ * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`,
+ * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`,
+ * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`,
+ * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`,
+ * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`,
+ * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`,
+ * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`,
+ * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`,
+ * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`,
+ * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`,
+ * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`,
+ * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`,
+ * `upperFirst`, `value`, and `words`
+ *
+ * @name _
+ * @constructor
+ * @category Seq
+ * @param {*} value The value to wrap in a `lodash` instance.
+ * @returns {Object} Returns the new `lodash` wrapper instance.
+ * @example
+ *
+ * function square(n) {
+ * return n * n;
+ * }
+ *
+ * var wrapped = _([1, 2, 3]);
+ *
+ * // Returns an unwrapped value.
+ * wrapped.reduce(_.add);
+ * // => 6
+ *
+ * // Returns a wrapped value.
+ * var squares = wrapped.map(square);
+ *
+ * _.isArray(squares);
+ * // => false
+ *
+ * _.isArray(squares.value());
+ * // => true
+ */
+ function lodash(value) {
+ if (
+ isObjectLike(value) &&
+ !isArray(value) &&
+ !(value instanceof LazyWrapper)
+ ) {
+ if (value instanceof LodashWrapper) {
+ return value;
+ }
+ if (hasOwnProperty.call(value, '__wrapped__')) {
+ return wrapperClone(value);
+ }
+ }
+ return new LodashWrapper(value);
+ }
+
+ /**
+ * The base implementation of `_.create` without support for assigning
+ * properties to the created object.
+ *
+ * @private
+ * @param {Object} proto The object to inherit from.
+ * @returns {Object} Returns the new object.
+ */
+ var baseCreate = (function() {
+ function object() {}
+ return function(proto) {
+ if (!isObject(proto)) {
+ return {};
+ }
+ if (objectCreate) {
+ return objectCreate(proto);
+ }
+ object.prototype = proto;
+ var result = new object();
+ object.prototype = undefined$1;
+ return result;
+ };
+ })();
+
+ /**
+ * The function whose prototype chain sequence wrappers inherit from.
+ *
+ * @private
+ */
+ function baseLodash() {
+ // No operation performed.
+ }
+
+ /**
+ * The base constructor for creating `lodash` wrapper objects.
+ *
+ * @private
+ * @param {*} value The value to wrap.
+ * @param {boolean} [chainAll] Enable explicit method chain sequences.
+ */
+ function LodashWrapper(value, chainAll) {
+ this.__wrapped__ = value;
+ this.__actions__ = [];
+ this.__chain__ = !!chainAll;
+ this.__index__ = 0;
+ this.__values__ = undefined$1;
+ }
+
+ /**
+ * By default, the template delimiters used by lodash are like those in
+ * embedded Ruby (ERB) as well as ES2015 template strings. Change the
+ * following template settings to use alternative delimiters.
+ *
+ * @static
+ * @memberOf _
+ * @type {Object}
+ */
+ lodash.templateSettings = {
+ /**
+ * Used to detect `data` property values to be HTML-escaped.
+ *
+ * @memberOf _.templateSettings
+ * @type {RegExp}
+ */
+ escape: reEscape,
+
+ /**
+ * Used to detect code to be evaluated.
+ *
+ * @memberOf _.templateSettings
+ * @type {RegExp}
+ */
+ evaluate: reEvaluate,
+
+ /**
+ * Used to detect `data` property values to inject.
+ *
+ * @memberOf _.templateSettings
+ * @type {RegExp}
+ */
+ interpolate: reInterpolate,
+
+ /**
+ * Used to reference the data object in the template text.
+ *
+ * @memberOf _.templateSettings
+ * @type {string}
+ */
+ variable: '',
+
+ /**
+ * Used to import variables into the compiled template.
+ *
+ * @memberOf _.templateSettings
+ * @type {Object}
+ */
+ imports: {
+ /**
+ * A reference to the `lodash` function.
+ *
+ * @memberOf _.templateSettings.imports
+ * @type {Function}
+ */
+ _: lodash,
+ },
+ };
+
+ // Ensure wrappers are instances of `baseLodash`.
+ lodash.prototype = baseLodash.prototype;
+ lodash.prototype.constructor = lodash;
+
+ LodashWrapper.prototype = baseCreate(baseLodash.prototype);
+ LodashWrapper.prototype.constructor = LodashWrapper;
+
+ /*------------------------------------------------------------------------*/
+
+ /**
+ * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.
+ *
+ * @private
+ * @constructor
+ * @param {*} value The value to wrap.
+ */
+ function LazyWrapper(value) {
+ this.__wrapped__ = value;
+ this.__actions__ = [];
+ this.__dir__ = 1;
+ this.__filtered__ = false;
+ this.__iteratees__ = [];
+ this.__takeCount__ = MAX_ARRAY_LENGTH;
+ this.__views__ = [];
+ }
+
+ /**
+ * Creates a clone of the lazy wrapper object.
+ *
+ * @private
+ * @name clone
+ * @memberOf LazyWrapper
+ * @returns {Object} Returns the cloned `LazyWrapper` object.
+ */
+ function lazyClone() {
+ var result = new LazyWrapper(this.__wrapped__);
+ result.__actions__ = copyArray(this.__actions__);
+ result.__dir__ = this.__dir__;
+ result.__filtered__ = this.__filtered__;
+ result.__iteratees__ = copyArray(this.__iteratees__);
+ result.__takeCount__ = this.__takeCount__;
+ result.__views__ = copyArray(this.__views__);
+ return result;
+ }
+
+ /**
+ * Reverses the direction of lazy iteration.
+ *
+ * @private
+ * @name reverse
+ * @memberOf LazyWrapper
+ * @returns {Object} Returns the new reversed `LazyWrapper` object.
+ */
+ function lazyReverse() {
+ if (this.__filtered__) {
+ var result = new LazyWrapper(this);
+ result.__dir__ = -1;
+ result.__filtered__ = true;
+ } else {
+ result = this.clone();
+ result.__dir__ *= -1;
+ }
+ return result;
+ }
+
+ /**
+ * Extracts the unwrapped value from its lazy wrapper.
+ *
+ * @private
+ * @name value
+ * @memberOf LazyWrapper
+ * @returns {*} Returns the unwrapped value.
+ */
+ function lazyValue() {
+ var array = this.__wrapped__.value(),
+ dir = this.__dir__,
+ isArr = isArray(array),
+ isRight = dir < 0,
+ arrLength = isArr ? array.length : 0,
+ view = getView(0, arrLength, this.__views__),
+ start = view.start,
+ end = view.end,
+ length = end - start,
+ index = isRight ? end : start - 1,
+ iteratees = this.__iteratees__,
+ iterLength = iteratees.length,
+ resIndex = 0,
+ takeCount = nativeMin(length, this.__takeCount__);
+
+ if (
+ !isArr ||
+ (!isRight && arrLength == length && takeCount == length)
+ ) {
+ return baseWrapperValue(array, this.__actions__);
+ }
+ var result = [];
+
+ outer: while (length-- && resIndex < takeCount) {
+ index += dir;
+
+ var iterIndex = -1,
+ value = array[index];
+
+ while (++iterIndex < iterLength) {
+ var data = iteratees[iterIndex],
+ iteratee = data.iteratee,
+ type = data.type,
+ computed = iteratee(value);
+
+ if (type == LAZY_MAP_FLAG) {
+ value = computed;
+ } else if (!computed) {
+ if (type == LAZY_FILTER_FLAG) {
+ continue outer;
+ } else {
+ break outer;
+ }
+ }
+ }
+ result[resIndex++] = value;
+ }
+ return result;
+ }
+
+ // Ensure `LazyWrapper` is an instance of `baseLodash`.
+ LazyWrapper.prototype = baseCreate(baseLodash.prototype);
+ LazyWrapper.prototype.constructor = LazyWrapper;
+
+ /*------------------------------------------------------------------------*/
+
+ /**
+ * Creates a hash object.
+ *
+ * @private
+ * @constructor
+ * @param {Array} [entries] The key-value pairs to cache.
+ */
+ function Hash(entries) {
+ var index = -1,
+ length = entries == null ? 0 : entries.length;
+
+ this.clear();
+ while (++index < length) {
+ var entry = entries[index];
+ this.set(entry[0], entry[1]);
+ }
+ }
+
+ /**
+ * Removes all key-value entries from the hash.
+ *
+ * @private
+ * @name clear
+ * @memberOf Hash
+ */
+ function hashClear() {
+ this.__data__ = nativeCreate ? nativeCreate(null) : {};
+ this.size = 0;
+ }
+
+ /**
+ * Removes `key` and its value from the hash.
+ *
+ * @private
+ * @name delete
+ * @memberOf Hash
+ * @param {Object} hash The hash to modify.
+ * @param {string} key The key of the value to remove.
+ * @returns {boolean} Returns `true` if the entry was removed, else `false`.
+ */
+ function hashDelete(key) {
+ var result = this.has(key) && delete this.__data__[key];
+ this.size -= result ? 1 : 0;
+ return result;
+ }
+
+ /**
+ * Gets the hash value for `key`.
+ *
+ * @private
+ * @name get
+ * @memberOf Hash
+ * @param {string} key The key of the value to get.
+ * @returns {*} Returns the entry value.
+ */
+ function hashGet(key) {
+ var data = this.__data__;
+ if (nativeCreate) {
+ var result = data[key];
+ return result === HASH_UNDEFINED ? undefined$1 : result;
+ }
+ return hasOwnProperty.call(data, key) ? data[key] : undefined$1;
+ }
+
+ /**
+ * Checks if a hash value for `key` exists.
+ *
+ * @private
+ * @name has
+ * @memberOf Hash
+ * @param {string} key The key of the entry to check.
+ * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
+ */
+ function hashHas(key) {
+ var data = this.__data__;
+ return nativeCreate
+ ? data[key] !== undefined$1
+ : hasOwnProperty.call(data, key);
+ }
+
+ /**
+ * Sets the hash `key` to `value`.
+ *
+ * @private
+ * @name set
+ * @memberOf Hash
+ * @param {string} key The key of the value to set.
+ * @param {*} value The value to set.
+ * @returns {Object} Returns the hash instance.
+ */
+ function hashSet(key, value) {
+ var data = this.__data__;
+ this.size += this.has(key) ? 0 : 1;
+ data[key] =
+ nativeCreate && value === undefined$1 ? HASH_UNDEFINED : value;
+ return this;
+ }
+
+ // Add methods to `Hash`.
+ Hash.prototype.clear = hashClear;
+ Hash.prototype['delete'] = hashDelete;
+ Hash.prototype.get = hashGet;
+ Hash.prototype.has = hashHas;
+ Hash.prototype.set = hashSet;
+
+ /*------------------------------------------------------------------------*/
+
+ /**
+ * Creates an list cache object.
+ *
+ * @private
+ * @constructor
+ * @param {Array} [entries] The key-value pairs to cache.
+ */
+ function ListCache(entries) {
+ var index = -1,
+ length = entries == null ? 0 : entries.length;
+
+ this.clear();
+ while (++index < length) {
+ var entry = entries[index];
+ this.set(entry[0], entry[1]);
+ }
+ }
+
+ /**
+ * Removes all key-value entries from the list cache.
+ *
+ * @private
+ * @name clear
+ * @memberOf ListCache
+ */
+ function listCacheClear() {
+ this.__data__ = [];
+ this.size = 0;
+ }
+
+ /**
+ * Removes `key` and its value from the list cache.
+ *
+ * @private
+ * @name delete
+ * @memberOf ListCache
+ * @param {string} key The key of the value to remove.
+ * @returns {boolean} Returns `true` if the entry was removed, else `false`.
+ */
+ function listCacheDelete(key) {
+ var data = this.__data__,
+ index = assocIndexOf(data, key);
+
+ if (index < 0) {
+ return false;
+ }
+ var lastIndex = data.length - 1;
+ if (index == lastIndex) {
+ data.pop();
+ } else {
+ splice.call(data, index, 1);
+ }
+ --this.size;
+ return true;
+ }
+
+ /**
+ * Gets the list cache value for `key`.
+ *
+ * @private
+ * @name get
+ * @memberOf ListCache
+ * @param {string} key The key of the value to get.
+ * @returns {*} Returns the entry value.
+ */
+ function listCacheGet(key) {
+ var data = this.__data__,
+ index = assocIndexOf(data, key);
+
+ return index < 0 ? undefined$1 : data[index][1];
+ }
+
+ /**
+ * Checks if a list cache value for `key` exists.
+ *
+ * @private
+ * @name has
+ * @memberOf ListCache
+ * @param {string} key The key of the entry to check.
+ * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
+ */
+ function listCacheHas(key) {
+ return assocIndexOf(this.__data__, key) > -1;
+ }
+
+ /**
+ * Sets the list cache `key` to `value`.
+ *
+ * @private
+ * @name set
+ * @memberOf ListCache
+ * @param {string} key The key of the value to set.
+ * @param {*} value The value to set.
+ * @returns {Object} Returns the list cache instance.
+ */
+ function listCacheSet(key, value) {
+ var data = this.__data__,
+ index = assocIndexOf(data, key);
+
+ if (index < 0) {
+ ++this.size;
+ data.push([key, value]);
+ } else {
+ data[index][1] = value;
+ }
+ return this;
+ }
+
+ // Add methods to `ListCache`.
+ ListCache.prototype.clear = listCacheClear;
+ ListCache.prototype['delete'] = listCacheDelete;
+ ListCache.prototype.get = listCacheGet;
+ ListCache.prototype.has = listCacheHas;
+ ListCache.prototype.set = listCacheSet;
+
+ /*------------------------------------------------------------------------*/
+
+ /**
+ * Creates a map cache object to store key-value pairs.
+ *
+ * @private
+ * @constructor
+ * @param {Array} [entries] The key-value pairs to cache.
+ */
+ function MapCache(entries) {
+ var index = -1,
+ length = entries == null ? 0 : entries.length;
+
+ this.clear();
+ while (++index < length) {
+ var entry = entries[index];
+ this.set(entry[0], entry[1]);
+ }
+ }
+
+ /**
+ * Removes all key-value entries from the map.
+ *
+ * @private
+ * @name clear
+ * @memberOf MapCache
+ */
+ function mapCacheClear() {
+ this.size = 0;
+ this.__data__ = {
+ hash: new Hash(),
+ map: new (Map || ListCache)(),
+ string: new Hash(),
+ };
+ }
+
+ /**
+ * Removes `key` and its value from the map.
+ *
+ * @private
+ * @name delete
+ * @memberOf MapCache
+ * @param {string} key The key of the value to remove.
+ * @returns {boolean} Returns `true` if the entry was removed, else `false`.
+ */
+ function mapCacheDelete(key) {
+ var result = getMapData(this, key)['delete'](key);
+ this.size -= result ? 1 : 0;
+ return result;
+ }
+
+ /**
+ * Gets the map value for `key`.
+ *
+ * @private
+ * @name get
+ * @memberOf MapCache
+ * @param {string} key The key of the value to get.
+ * @returns {*} Returns the entry value.
+ */
+ function mapCacheGet(key) {
+ return getMapData(this, key).get(key);
+ }
+
+ /**
+ * Checks if a map value for `key` exists.
+ *
+ * @private
+ * @name has
+ * @memberOf MapCache
+ * @param {string} key The key of the entry to check.
+ * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
+ */
+ function mapCacheHas(key) {
+ return getMapData(this, key).has(key);
+ }
+
+ /**
+ * Sets the map `key` to `value`.
+ *
+ * @private
+ * @name set
+ * @memberOf MapCache
+ * @param {string} key The key of the value to set.
+ * @param {*} value The value to set.
+ * @returns {Object} Returns the map cache instance.
+ */
+ function mapCacheSet(key, value) {
+ var data = getMapData(this, key),
+ size = data.size;
+
+ data.set(key, value);
+ this.size += data.size == size ? 0 : 1;
+ return this;
+ }
+
+ // Add methods to `MapCache`.
+ MapCache.prototype.clear = mapCacheClear;
+ MapCache.prototype['delete'] = mapCacheDelete;
+ MapCache.prototype.get = mapCacheGet;
+ MapCache.prototype.has = mapCacheHas;
+ MapCache.prototype.set = mapCacheSet;
+
+ /*------------------------------------------------------------------------*/
+
+ /**
+ *
+ * Creates an array cache object to store unique values.
+ *
+ * @private
+ * @constructor
+ * @param {Array} [values] The values to cache.
+ */
+ function SetCache(values) {
+ var index = -1,
+ length = values == null ? 0 : values.length;
+
+ this.__data__ = new MapCache();
+ while (++index < length) {
+ this.add(values[index]);
+ }
+ }
+
+ /**
+ * Adds `value` to the array cache.
+ *
+ * @private
+ * @name add
+ * @memberOf SetCache
+ * @alias push
+ * @param {*} value The value to cache.
+ * @returns {Object} Returns the cache instance.
+ */
+ function setCacheAdd(value) {
+ this.__data__.set(value, HASH_UNDEFINED);
+ return this;
+ }
+
+ /**
+ * Checks if `value` is in the array cache.
+ *
+ * @private
+ * @name has
+ * @memberOf SetCache
+ * @param {*} value The value to search for.
+ * @returns {number} Returns `true` if `value` is found, else `false`.
+ */
+ function setCacheHas(value) {
+ return this.__data__.has(value);
+ }
+
+ // Add methods to `SetCache`.
+ SetCache.prototype.add = SetCache.prototype.push = setCacheAdd;
+ SetCache.prototype.has = setCacheHas;
+
+ /*------------------------------------------------------------------------*/
+
+ /**
+ * Creates a stack cache object to store key-value pairs.
+ *
+ * @private
+ * @constructor
+ * @param {Array} [entries] The key-value pairs to cache.
+ */
+ function Stack(entries) {
+ var data = (this.__data__ = new ListCache(entries));
+ this.size = data.size;
+ }
+
+ /**
+ * Removes all key-value entries from the stack.
+ *
+ * @private
+ * @name clear
+ * @memberOf Stack
+ */
+ function stackClear() {
+ this.__data__ = new ListCache();
+ this.size = 0;
+ }
+
+ /**
+ * Removes `key` and its value from the stack.
+ *
+ * @private
+ * @name delete
+ * @memberOf Stack
+ * @param {string} key The key of the value to remove.
+ * @returns {boolean} Returns `true` if the entry was removed, else `false`.
+ */
+ function stackDelete(key) {
+ var data = this.__data__,
+ result = data['delete'](key);
+
+ this.size = data.size;
+ return result;
+ }
+
+ /**
+ * Gets the stack value for `key`.
+ *
+ * @private
+ * @name get
+ * @memberOf Stack
+ * @param {string} key The key of the value to get.
+ * @returns {*} Returns the entry value.
+ */
+ function stackGet(key) {
+ return this.__data__.get(key);
+ }
+
+ /**
+ * Checks if a stack value for `key` exists.
+ *
+ * @private
+ * @name has
+ * @memberOf Stack
+ * @param {string} key The key of the entry to check.
+ * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
+ */
+ function stackHas(key) {
+ return this.__data__.has(key);
+ }
+
+ /**
+ * Sets the stack `key` to `value`.
+ *
+ * @private
+ * @name set
+ * @memberOf Stack
+ * @param {string} key The key of the value to set.
+ * @param {*} value The value to set.
+ * @returns {Object} Returns the stack cache instance.
+ */
+ function stackSet(key, value) {
+ var data = this.__data__;
+ if (data instanceof ListCache) {
+ var pairs = data.__data__;
+ if (!Map || pairs.length < LARGE_ARRAY_SIZE - 1) {
+ pairs.push([key, value]);
+ this.size = ++data.size;
+ return this;
+ }
+ data = this.__data__ = new MapCache(pairs);
+ }
+ data.set(key, value);
+ this.size = data.size;
+ return this;
+ }
+
+ // Add methods to `Stack`.
+ Stack.prototype.clear = stackClear;
+ Stack.prototype['delete'] = stackDelete;
+ Stack.prototype.get = stackGet;
+ Stack.prototype.has = stackHas;
+ Stack.prototype.set = stackSet;
+
+ /*------------------------------------------------------------------------*/
+
+ /**
+ * Creates an array of the enumerable property names of the array-like `value`.
+ *
+ * @private
+ * @param {*} value The value to query.
+ * @param {boolean} inherited Specify returning inherited property names.
+ * @returns {Array} Returns the array of property names.
+ */
+ function arrayLikeKeys(value, inherited) {
+ var isArr = isArray(value),
+ isArg = !isArr && isArguments(value),
+ isBuff = !isArr && !isArg && isBuffer(value),
+ isType = !isArr && !isArg && !isBuff && isTypedArray(value),
+ skipIndexes = isArr || isArg || isBuff || isType,
+ result = skipIndexes ? baseTimes(value.length, String) : [],
+ length = result.length;
+
+ for (var key in value) {
+ if (
+ (inherited || hasOwnProperty.call(value, key)) &&
+ !(
+ skipIndexes &&
+ // Safari 9 has enumerable `arguments.length` in strict mode.
+ (key == 'length' ||
+ // Node.js 0.10 has enumerable non-index properties on buffers.
+ (isBuff && (key == 'offset' || key == 'parent')) ||
+ // PhantomJS 2 has enumerable non-index properties on typed arrays.
+ (isType &&
+ (key == 'buffer' ||
+ key == 'byteLength' ||
+ key == 'byteOffset')) ||
+ // Skip index properties.
+ isIndex(key, length))
+ )
+ ) {
+ result.push(key);
+ }
+ }
+ return result;
+ }
+
+ /**
+ * A specialized version of `_.sample` for arrays.
+ *
+ * @private
+ * @param {Array} array The array to sample.
+ * @returns {*} Returns the random element.
+ */
+ function arraySample(array) {
+ var length = array.length;
+ return length ? array[baseRandom(0, length - 1)] : undefined$1;
+ }
+
+ /**
+ * A specialized version of `_.sampleSize` for arrays.
+ *
+ * @private
+ * @param {Array} array The array to sample.
+ * @param {number} n The number of elements to sample.
+ * @returns {Array} Returns the random elements.
+ */
+ function arraySampleSize(array, n) {
+ return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length));
+ }
+
+ /**
+ * A specialized version of `_.shuffle` for arrays.
+ *
+ * @private
+ * @param {Array} array The array to shuffle.
+ * @returns {Array} Returns the new shuffled array.
+ */
+ function arrayShuffle(array) {
+ return shuffleSelf(copyArray(array));
+ }
+
+ /**
+ * This function is like `assignValue` except that it doesn't assign
+ * `undefined` values.
+ *
+ * @private
+ * @param {Object} object The object to modify.
+ * @param {string} key The key of the property to assign.
+ * @param {*} value The value to assign.
+ */
+ function assignMergeValue(object, key, value) {
+ if (
+ (value !== undefined$1 && !eq(object[key], value)) ||
+ (value === undefined$1 && !(key in object))
+ ) {
+ baseAssignValue(object, key, value);
+ }
+ }
+
+ /**
+ * Assigns `value` to `key` of `object` if the existing value is not equivalent
+ * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
+ * for equality comparisons.
+ *
+ * @private
+ * @param {Object} object The object to modify.
+ * @param {string} key The key of the property to assign.
+ * @param {*} value The value to assign.
+ */
+ function assignValue(object, key, value) {
+ var objValue = object[key];
+ if (
+ !(hasOwnProperty.call(object, key) && eq(objValue, value)) ||
+ (value === undefined$1 && !(key in object))
+ ) {
+ baseAssignValue(object, key, value);
+ }
+ }
+
+ /**
+ * Gets the index at which the `key` is found in `array` of key-value pairs.
+ *
+ * @private
+ * @param {Array} array The array to inspect.
+ * @param {*} key The key to search for.
+ * @returns {number} Returns the index of the matched value, else `-1`.
+ */
+ function assocIndexOf(array, key) {
+ var length = array.length;
+ while (length--) {
+ if (eq(array[length][0], key)) {
+ return length;
+ }
+ }
+ return -1;
+ }
+
+ /**
+ * Aggregates elements of `collection` on `accumulator` with keys transformed
+ * by `iteratee` and values set by `setter`.
+ *
+ * @private
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function} setter The function to set `accumulator` values.
+ * @param {Function} iteratee The iteratee to transform keys.
+ * @param {Object} accumulator The initial aggregated object.
+ * @returns {Function} Returns `accumulator`.
+ */
+ function baseAggregator(collection, setter, iteratee, accumulator) {
+ baseEach(collection, function(value, key, collection) {
+ setter(accumulator, value, iteratee(value), collection);
+ });
+ return accumulator;
+ }
+
+ /**
+ * The base implementation of `_.assign` without support for multiple sources
+ * or `customizer` functions.
+ *
+ * @private
+ * @param {Object} object The destination object.
+ * @param {Object} source The source object.
+ * @returns {Object} Returns `object`.
+ */
+ function baseAssign(object, source) {
+ return object && copyObject(source, keys(source), object);
+ }
+
+ /**
+ * The base implementation of `_.assignIn` without support for multiple sources
+ * or `customizer` functions.
+ *
+ * @private
+ * @param {Object} object The destination object.
+ * @param {Object} source The source object.
+ * @returns {Object} Returns `object`.
+ */
+ function baseAssignIn(object, source) {
+ return object && copyObject(source, keysIn(source), object);
+ }
+
+ /**
+ * The base implementation of `assignValue` and `assignMergeValue` without
+ * value checks.
+ *
+ * @private
+ * @param {Object} object The object to modify.
+ * @param {string} key The key of the property to assign.
+ * @param {*} value The value to assign.
+ */
+ function baseAssignValue(object, key, value) {
+ if (key == '__proto__' && defineProperty) {
+ defineProperty(object, key, {
+ configurable: true,
+ enumerable: true,
+ value: value,
+ writable: true,
+ });
+ } else {
+ object[key] = value;
+ }
+ }
+
+ /**
+ * The base implementation of `_.at` without support for individual paths.
+ *
+ * @private
+ * @param {Object} object The object to iterate over.
+ * @param {string[]} paths The property paths to pick.
+ * @returns {Array} Returns the picked elements.
+ */
+ function baseAt(object, paths) {
+ var index = -1,
+ length = paths.length,
+ result = Array(length),
+ skip = object == null;
+
+ while (++index < length) {
+ result[index] = skip ? undefined$1 : get(object, paths[index]);
+ }
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.clamp` which doesn't coerce arguments.
+ *
+ * @private
+ * @param {number} number The number to clamp.
+ * @param {number} [lower] The lower bound.
+ * @param {number} upper The upper bound.
+ * @returns {number} Returns the clamped number.
+ */
+ function baseClamp(number, lower, upper) {
+ if (number === number) {
+ if (upper !== undefined$1) {
+ number = number <= upper ? number : upper;
+ }
+ if (lower !== undefined$1) {
+ number = number >= lower ? number : lower;
+ }
+ }
+ return number;
+ }
+
+ /**
+ * The base implementation of `_.clone` and `_.cloneDeep` which tracks
+ * traversed objects.
+ *
+ * @private
+ * @param {*} value The value to clone.
+ * @param {boolean} bitmask The bitmask flags.
+ * 1 - Deep clone
+ * 2 - Flatten inherited properties
+ * 4 - Clone symbols
+ * @param {Function} [customizer] The function to customize cloning.
+ * @param {string} [key] The key of `value`.
+ * @param {Object} [object] The parent object of `value`.
+ * @param {Object} [stack] Tracks traversed objects and their clone counterparts.
+ * @returns {*} Returns the cloned value.
+ */
+ function baseClone(value, bitmask, customizer, key, object, stack) {
+ var result,
+ isDeep = bitmask & CLONE_DEEP_FLAG,
+ isFlat = bitmask & CLONE_FLAT_FLAG,
+ isFull = bitmask & CLONE_SYMBOLS_FLAG;
+
+ if (customizer) {
+ result = object
+ ? customizer(value, key, object, stack)
+ : customizer(value);
+ }
+ if (result !== undefined$1) {
+ return result;
+ }
+ if (!isObject(value)) {
+ return value;
+ }
+ var isArr = isArray(value);
+ if (isArr) {
+ result = initCloneArray(value);
+ if (!isDeep) {
+ return copyArray(value, result);
+ }
+ } else {
+ var tag = getTag(value),
+ isFunc = tag == funcTag || tag == genTag;
+
+ if (isBuffer(value)) {
+ return cloneBuffer(value, isDeep);
+ }
+ if (tag == objectTag || tag == argsTag || (isFunc && !object)) {
+ result = isFlat || isFunc ? {} : initCloneObject(value);
+ if (!isDeep) {
+ return isFlat
+ ? copySymbolsIn(value, baseAssignIn(result, value))
+ : copySymbols(value, baseAssign(result, value));
+ }
+ } else {
+ if (!cloneableTags[tag]) {
+ return object ? value : {};
+ }
+ result = initCloneByTag(value, tag, isDeep);
+ }
+ }
+ // Check for circular references and return its corresponding clone.
+ stack || (stack = new Stack());
+ var stacked = stack.get(value);
+ if (stacked) {
+ return stacked;
+ }
+ stack.set(value, result);
+
+ if (isSet(value)) {
+ value.forEach(function(subValue) {
+ result.add(
+ baseClone(
+ subValue,
+ bitmask,
+ customizer,
+ subValue,
+ value,
+ stack,
+ ),
+ );
+ });
+ } else if (isMap(value)) {
+ value.forEach(function(subValue, key) {
+ result.set(
+ key,
+ baseClone(
+ subValue,
+ bitmask,
+ customizer,
+ key,
+ value,
+ stack,
+ ),
+ );
+ });
+ }
+
+ var keysFunc = isFull
+ ? isFlat
+ ? getAllKeysIn
+ : getAllKeys
+ : isFlat
+ ? keysIn
+ : keys;
+
+ var props = isArr ? undefined$1 : keysFunc(value);
+ arrayEach(props || value, function(subValue, key) {
+ if (props) {
+ key = subValue;
+ subValue = value[key];
+ }
+ // Recursively populate clone (susceptible to call stack limits).
+ assignValue(
+ result,
+ key,
+ baseClone(subValue, bitmask, customizer, key, value, stack),
+ );
+ });
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.conforms` which doesn't clone `source`.
+ *
+ * @private
+ * @param {Object} source The object of property predicates to conform to.
+ * @returns {Function} Returns the new spec function.
+ */
+ function baseConforms(source) {
+ var props = keys(source);
+ return function(object) {
+ return baseConformsTo(object, source, props);
+ };
+ }
+
+ /**
+ * The base implementation of `_.conformsTo` which accepts `props` to check.
+ *
+ * @private
+ * @param {Object} object The object to inspect.
+ * @param {Object} source The object of property predicates to conform to.
+ * @returns {boolean} Returns `true` if `object` conforms, else `false`.
+ */
+ function baseConformsTo(object, source, props) {
+ var length = props.length;
+ if (object == null) {
+ return !length;
+ }
+ object = Object(object);
+ while (length--) {
+ var key = props[length],
+ predicate = source[key],
+ value = object[key];
+
+ if (
+ (value === undefined$1 && !(key in object)) ||
+ !predicate(value)
+ ) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ /**
+ * The base implementation of `_.delay` and `_.defer` which accepts `args`
+ * to provide to `func`.
+ *
+ * @private
+ * @param {Function} func The function to delay.
+ * @param {number} wait The number of milliseconds to delay invocation.
+ * @param {Array} args The arguments to provide to `func`.
+ * @returns {number|Object} Returns the timer id or timeout object.
+ */
+ function baseDelay(func, wait, args) {
+ if (typeof func != 'function') {
+ throw new TypeError(FUNC_ERROR_TEXT);
+ }
+ return setTimeout(function() {
+ func.apply(undefined$1, args);
+ }, wait);
+ }
+
+ /**
+ * The base implementation of methods like `_.difference` without support
+ * for excluding multiple arrays or iteratee shorthands.
+ *
+ * @private
+ * @param {Array} array The array to inspect.
+ * @param {Array} values The values to exclude.
+ * @param {Function} [iteratee] The iteratee invoked per element.
+ * @param {Function} [comparator] The comparator invoked per element.
+ * @returns {Array} Returns the new array of filtered values.
+ */
+ function baseDifference(array, values, iteratee, comparator) {
+ var index = -1,
+ includes = arrayIncludes,
+ isCommon = true,
+ length = array.length,
+ result = [],
+ valuesLength = values.length;
+
+ if (!length) {
+ return result;
+ }
+ if (iteratee) {
+ values = arrayMap(values, baseUnary(iteratee));
+ }
+ if (comparator) {
+ includes = arrayIncludesWith;
+ isCommon = false;
+ } else if (values.length >= LARGE_ARRAY_SIZE) {
+ includes = cacheHas;
+ isCommon = false;
+ values = new SetCache(values);
+ }
+ outer: while (++index < length) {
+ var value = array[index],
+ computed = iteratee == null ? value : iteratee(value);
+
+ value = comparator || value !== 0 ? value : 0;
+ if (isCommon && computed === computed) {
+ var valuesIndex = valuesLength;
+ while (valuesIndex--) {
+ if (values[valuesIndex] === computed) {
+ continue outer;
+ }
+ }
+ result.push(value);
+ } else if (!includes(values, computed, comparator)) {
+ result.push(value);
+ }
+ }
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.forEach` without support for iteratee shorthands.
+ *
+ * @private
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @returns {Array|Object} Returns `collection`.
+ */
+ var baseEach = createBaseEach(baseForOwn);
+
+ /**
+ * The base implementation of `_.forEachRight` without support for iteratee shorthands.
+ *
+ * @private
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @returns {Array|Object} Returns `collection`.
+ */
+ var baseEachRight = createBaseEach(baseForOwnRight, true);
+
+ /**
+ * The base implementation of `_.every` without support for iteratee shorthands.
+ *
+ * @private
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function} predicate The function invoked per iteration.
+ * @returns {boolean} Returns `true` if all elements pass the predicate check,
+ * else `false`
+ */
+ function baseEvery(collection, predicate) {
+ var result = true;
+ baseEach(collection, function(value, index, collection) {
+ result = !!predicate(value, index, collection);
+ return result;
+ });
+ return result;
+ }
+
+ /**
+ * The base implementation of methods like `_.max` and `_.min` which accepts a
+ * `comparator` to determine the extremum value.
+ *
+ * @private
+ * @param {Array} array The array to iterate over.
+ * @param {Function} iteratee The iteratee invoked per iteration.
+ * @param {Function} comparator The comparator used to compare values.
+ * @returns {*} Returns the extremum value.
+ */
+ function baseExtremum(array, iteratee, comparator) {
+ var index = -1,
+ length = array.length;
+
+ while (++index < length) {
+ var value = array[index],
+ current = iteratee(value);
+
+ if (
+ current != null &&
+ (computed === undefined$1
+ ? current === current && !isSymbol(current)
+ : comparator(current, computed))
+ ) {
+ var computed = current,
+ result = value;
+ }
+ }
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.fill` without an iteratee call guard.
+ *
+ * @private
+ * @param {Array} array The array to fill.
+ * @param {*} value The value to fill `array` with.
+ * @param {number} [start=0] The start position.
+ * @param {number} [end=array.length] The end position.
+ * @returns {Array} Returns `array`.
+ */
+ function baseFill(array, value, start, end) {
+ var length = array.length;
+
+ start = toInteger(start);
+ if (start < 0) {
+ start = -start > length ? 0 : length + start;
+ }
+ end = end === undefined$1 || end > length ? length : toInteger(end);
+ if (end < 0) {
+ end += length;
+ }
+ end = start > end ? 0 : toLength(end);
+ while (start < end) {
+ array[start++] = value;
+ }
+ return array;
+ }
+
+ /**
+ * The base implementation of `_.filter` without support for iteratee shorthands.
+ *
+ * @private
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function} predicate The function invoked per iteration.
+ * @returns {Array} Returns the new filtered array.
+ */
+ function baseFilter(collection, predicate) {
+ var result = [];
+ baseEach(collection, function(value, index, collection) {
+ if (predicate(value, index, collection)) {
+ result.push(value);
+ }
+ });
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.flatten` with support for restricting flattening.
+ *
+ * @private
+ * @param {Array} array The array to flatten.
+ * @param {number} depth The maximum recursion depth.
+ * @param {boolean} [predicate=isFlattenable] The function invoked per iteration.
+ * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.
+ * @param {Array} [result=[]] The initial result value.
+ * @returns {Array} Returns the new flattened array.
+ */
+ function baseFlatten(array, depth, predicate, isStrict, result) {
+ var index = -1,
+ length = array.length;
+
+ predicate || (predicate = isFlattenable);
+ result || (result = []);
+
+ while (++index < length) {
+ var value = array[index];
+ if (depth > 0 && predicate(value)) {
+ if (depth > 1) {
+ // Recursively flatten arrays (susceptible to call stack limits).
+ baseFlatten(
+ value,
+ depth - 1,
+ predicate,
+ isStrict,
+ result,
+ );
+ } else {
+ arrayPush(result, value);
+ }
+ } else if (!isStrict) {
+ result[result.length] = value;
+ }
+ }
+ return result;
+ }
+
+ /**
+ * The base implementation of `baseForOwn` which iterates over `object`
+ * properties returned by `keysFunc` and invokes `iteratee` for each property.
+ * Iteratee functions may exit iteration early by explicitly returning `false`.
+ *
+ * @private
+ * @param {Object} object The object to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @param {Function} keysFunc The function to get the keys of `object`.
+ * @returns {Object} Returns `object`.
+ */
+ var baseFor = createBaseFor();
+
+ /**
+ * This function is like `baseFor` except that it iterates over properties
+ * in the opposite order.
+ *
+ * @private
+ * @param {Object} object The object to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @param {Function} keysFunc The function to get the keys of `object`.
+ * @returns {Object} Returns `object`.
+ */
+ var baseForRight = createBaseFor(true);
+
+ /**
+ * The base implementation of `_.forOwn` without support for iteratee shorthands.
+ *
+ * @private
+ * @param {Object} object The object to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @returns {Object} Returns `object`.
+ */
+ function baseForOwn(object, iteratee) {
+ return object && baseFor(object, iteratee, keys);
+ }
+
+ /**
+ * The base implementation of `_.forOwnRight` without support for iteratee shorthands.
+ *
+ * @private
+ * @param {Object} object The object to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @returns {Object} Returns `object`.
+ */
+ function baseForOwnRight(object, iteratee) {
+ return object && baseForRight(object, iteratee, keys);
+ }
+
+ /**
+ * The base implementation of `_.functions` which creates an array of
+ * `object` function property names filtered from `props`.
+ *
+ * @private
+ * @param {Object} object The object to inspect.
+ * @param {Array} props The property names to filter.
+ * @returns {Array} Returns the function names.
+ */
+ function baseFunctions(object, props) {
+ return arrayFilter(props, function(key) {
+ return isFunction(object[key]);
+ });
+ }
+
+ /**
+ * The base implementation of `_.get` without support for default values.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @param {Array|string} path The path of the property to get.
+ * @returns {*} Returns the resolved value.
+ */
+ function baseGet(object, path) {
+ path = castPath(path, object);
+
+ var index = 0,
+ length = path.length;
+
+ while (object != null && index < length) {
+ object = object[toKey(path[index++])];
+ }
+ return index && index == length ? object : undefined$1;
+ }
+
+ /**
+ * The base implementation of `getAllKeys` and `getAllKeysIn` which uses
+ * `keysFunc` and `symbolsFunc` to get the enumerable property names and
+ * symbols of `object`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @param {Function} keysFunc The function to get the keys of `object`.
+ * @param {Function} symbolsFunc The function to get the symbols of `object`.
+ * @returns {Array} Returns the array of property names and symbols.
+ */
+ function baseGetAllKeys(object, keysFunc, symbolsFunc) {
+ var result = keysFunc(object);
+ return isArray(object)
+ ? result
+ : arrayPush(result, symbolsFunc(object));
+ }
+
+ /**
+ * The base implementation of `getTag` without fallbacks for buggy environments.
+ *
+ * @private
+ * @param {*} value The value to query.
+ * @returns {string} Returns the `toStringTag`.
+ */
+ function baseGetTag(value) {
+ if (value == null) {
+ return value === undefined$1 ? undefinedTag : nullTag;
+ }
+ return symToStringTag && symToStringTag in Object(value)
+ ? getRawTag(value)
+ : objectToString(value);
+ }
+
+ /**
+ * The base implementation of `_.gt` which doesn't coerce arguments.
+ *
+ * @private
+ * @param {*} value The value to compare.
+ * @param {*} other The other value to compare.
+ * @returns {boolean} Returns `true` if `value` is greater than `other`,
+ * else `false`.
+ */
+ function baseGt(value, other) {
+ return value > other;
+ }
+
+ /**
+ * The base implementation of `_.has` without support for deep paths.
+ *
+ * @private
+ * @param {Object} [object] The object to query.
+ * @param {Array|string} key The key to check.
+ * @returns {boolean} Returns `true` if `key` exists, else `false`.
+ */
+ function baseHas(object, key) {
+ return object != null && hasOwnProperty.call(object, key);
+ }
+
+ /**
+ * The base implementation of `_.hasIn` without support for deep paths.
+ *
+ * @private
+ * @param {Object} [object] The object to query.
+ * @param {Array|string} key The key to check.
+ * @returns {boolean} Returns `true` if `key` exists, else `false`.
+ */
+ function baseHasIn(object, key) {
+ return object != null && key in Object(object);
+ }
+
+ /**
+ * The base implementation of `_.inRange` which doesn't coerce arguments.
+ *
+ * @private
+ * @param {number} number The number to check.
+ * @param {number} start The start of the range.
+ * @param {number} end The end of the range.
+ * @returns {boolean} Returns `true` if `number` is in the range, else `false`.
+ */
+ function baseInRange(number, start, end) {
+ return (
+ number >= nativeMin(start, end) &&
+ number < nativeMax(start, end)
+ );
+ }
+
+ /**
+ * The base implementation of methods like `_.intersection`, without support
+ * for iteratee shorthands, that accepts an array of arrays to inspect.
+ *
+ * @private
+ * @param {Array} arrays The arrays to inspect.
+ * @param {Function} [iteratee] The iteratee invoked per element.
+ * @param {Function} [comparator] The comparator invoked per element.
+ * @returns {Array} Returns the new array of shared values.
+ */
+ function baseIntersection(arrays, iteratee, comparator) {
+ var includes = comparator ? arrayIncludesWith : arrayIncludes,
+ length = arrays[0].length,
+ othLength = arrays.length,
+ othIndex = othLength,
+ caches = Array(othLength),
+ maxLength = Infinity,
+ result = [];
+
+ while (othIndex--) {
+ var array = arrays[othIndex];
+ if (othIndex && iteratee) {
+ array = arrayMap(array, baseUnary(iteratee));
+ }
+ maxLength = nativeMin(array.length, maxLength);
+ caches[othIndex] =
+ !comparator &&
+ (iteratee || (length >= 120 && array.length >= 120))
+ ? new SetCache(othIndex && array)
+ : undefined$1;
+ }
+ array = arrays[0];
+
+ var index = -1,
+ seen = caches[0];
+
+ outer: while (++index < length && result.length < maxLength) {
+ var value = array[index],
+ computed = iteratee ? iteratee(value) : value;
+
+ value = comparator || value !== 0 ? value : 0;
+ if (
+ !(seen
+ ? cacheHas(seen, computed)
+ : includes(result, computed, comparator))
+ ) {
+ othIndex = othLength;
+ while (--othIndex) {
+ var cache = caches[othIndex];
+ if (
+ !(cache
+ ? cacheHas(cache, computed)
+ : includes(
+ arrays[othIndex],
+ computed,
+ comparator,
+ ))
+ ) {
+ continue outer;
+ }
+ }
+ if (seen) {
+ seen.push(computed);
+ }
+ result.push(value);
+ }
+ }
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.invert` and `_.invertBy` which inverts
+ * `object` with values transformed by `iteratee` and set by `setter`.
+ *
+ * @private
+ * @param {Object} object The object to iterate over.
+ * @param {Function} setter The function to set `accumulator` values.
+ * @param {Function} iteratee The iteratee to transform values.
+ * @param {Object} accumulator The initial inverted object.
+ * @returns {Function} Returns `accumulator`.
+ */
+ function baseInverter(object, setter, iteratee, accumulator) {
+ baseForOwn(object, function(value, key, object) {
+ setter(accumulator, iteratee(value), key, object);
+ });
+ return accumulator;
+ }
+
+ /**
+ * The base implementation of `_.invoke` without support for individual
+ * method arguments.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @param {Array|string} path The path of the method to invoke.
+ * @param {Array} args The arguments to invoke the method with.
+ * @returns {*} Returns the result of the invoked method.
+ */
+ function baseInvoke(object, path, args) {
+ path = castPath(path, object);
+ object = parent(object, path);
+ var func = object == null ? object : object[toKey(last(path))];
+ return func == null ? undefined$1 : apply(func, object, args);
+ }
+
+ /**
+ * The base implementation of `_.isArguments`.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an `arguments` object,
+ */
+ function baseIsArguments(value) {
+ return isObjectLike(value) && baseGetTag(value) == argsTag;
+ }
+
+ /**
+ * The base implementation of `_.isArrayBuffer` without Node.js optimizations.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.
+ */
+ function baseIsArrayBuffer(value) {
+ return isObjectLike(value) && baseGetTag(value) == arrayBufferTag;
+ }
+
+ /**
+ * The base implementation of `_.isDate` without Node.js optimizations.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a date object, else `false`.
+ */
+ function baseIsDate(value) {
+ return isObjectLike(value) && baseGetTag(value) == dateTag;
+ }
+
+ /**
+ * The base implementation of `_.isEqual` which supports partial comparisons
+ * and tracks traversed objects.
+ *
+ * @private
+ * @param {*} value The value to compare.
+ * @param {*} other The other value to compare.
+ * @param {boolean} bitmask The bitmask flags.
+ * 1 - Unordered comparison
+ * 2 - Partial comparison
+ * @param {Function} [customizer] The function to customize comparisons.
+ * @param {Object} [stack] Tracks traversed `value` and `other` objects.
+ * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
+ */
+ function baseIsEqual(value, other, bitmask, customizer, stack) {
+ if (value === other) {
+ return true;
+ }
+ if (
+ value == null ||
+ other == null ||
+ (!isObjectLike(value) && !isObjectLike(other))
+ ) {
+ return value !== value && other !== other;
+ }
+ return baseIsEqualDeep(
+ value,
+ other,
+ bitmask,
+ customizer,
+ baseIsEqual,
+ stack,
+ );
+ }
+
+ /**
+ * A specialized version of `baseIsEqual` for arrays and objects which performs
+ * deep comparisons and tracks traversed objects enabling objects with circular
+ * references to be compared.
+ *
+ * @private
+ * @param {Object} object The object to compare.
+ * @param {Object} other The other object to compare.
+ * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
+ * @param {Function} customizer The function to customize comparisons.
+ * @param {Function} equalFunc The function to determine equivalents of values.
+ * @param {Object} [stack] Tracks traversed `object` and `other` objects.
+ * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
+ */
+ function baseIsEqualDeep(
+ object,
+ other,
+ bitmask,
+ customizer,
+ equalFunc,
+ stack,
+ ) {
+ var objIsArr = isArray(object),
+ othIsArr = isArray(other),
+ objTag = objIsArr ? arrayTag : getTag(object),
+ othTag = othIsArr ? arrayTag : getTag(other);
+
+ objTag = objTag == argsTag ? objectTag : objTag;
+ othTag = othTag == argsTag ? objectTag : othTag;
+
+ var objIsObj = objTag == objectTag,
+ othIsObj = othTag == objectTag,
+ isSameTag = objTag == othTag;
+
+ if (isSameTag && isBuffer(object)) {
+ if (!isBuffer(other)) {
+ return false;
+ }
+ objIsArr = true;
+ objIsObj = false;
+ }
+ if (isSameTag && !objIsObj) {
+ stack || (stack = new Stack());
+ return objIsArr || isTypedArray(object)
+ ? equalArrays(
+ object,
+ other,
+ bitmask,
+ customizer,
+ equalFunc,
+ stack,
+ )
+ : equalByTag(
+ object,
+ other,
+ objTag,
+ bitmask,
+ customizer,
+ equalFunc,
+ stack,
+ );
+ }
+ if (!(bitmask & COMPARE_PARTIAL_FLAG)) {
+ var objIsWrapped =
+ objIsObj && hasOwnProperty.call(object, '__wrapped__'),
+ othIsWrapped =
+ othIsObj && hasOwnProperty.call(other, '__wrapped__');
+
+ if (objIsWrapped || othIsWrapped) {
+ var objUnwrapped = objIsWrapped ? object.value() : object,
+ othUnwrapped = othIsWrapped ? other.value() : other;
+
+ stack || (stack = new Stack());
+ return equalFunc(
+ objUnwrapped,
+ othUnwrapped,
+ bitmask,
+ customizer,
+ stack,
+ );
+ }
+ }
+ if (!isSameTag) {
+ return false;
+ }
+ stack || (stack = new Stack());
+ return equalObjects(
+ object,
+ other,
+ bitmask,
+ customizer,
+ equalFunc,
+ stack,
+ );
+ }
+
+ /**
+ * The base implementation of `_.isMap` without Node.js optimizations.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a map, else `false`.
+ */
+ function baseIsMap(value) {
+ return isObjectLike(value) && getTag(value) == mapTag;
+ }
+
+ /**
+ * The base implementation of `_.isMatch` without support for iteratee shorthands.
+ *
+ * @private
+ * @param {Object} object The object to inspect.
+ * @param {Object} source The object of property values to match.
+ * @param {Array} matchData The property names, values, and compare flags to match.
+ * @param {Function} [customizer] The function to customize comparisons.
+ * @returns {boolean} Returns `true` if `object` is a match, else `false`.
+ */
+ function baseIsMatch(object, source, matchData, customizer) {
+ var index = matchData.length,
+ length = index,
+ noCustomizer = !customizer;
+
+ if (object == null) {
+ return !length;
+ }
+ object = Object(object);
+ while (index--) {
+ var data = matchData[index];
+ if (
+ noCustomizer && data[2]
+ ? data[1] !== object[data[0]]
+ : !(data[0] in object)
+ ) {
+ return false;
+ }
+ }
+ while (++index < length) {
+ data = matchData[index];
+ var key = data[0],
+ objValue = object[key],
+ srcValue = data[1];
+
+ if (noCustomizer && data[2]) {
+ if (objValue === undefined$1 && !(key in object)) {
+ return false;
+ }
+ } else {
+ var stack = new Stack();
+ if (customizer) {
+ var result = customizer(
+ objValue,
+ srcValue,
+ key,
+ object,
+ source,
+ stack,
+ );
+ }
+ if (
+ !(result === undefined$1
+ ? baseIsEqual(
+ srcValue,
+ objValue,
+ COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG,
+ customizer,
+ stack,
+ )
+ : result)
+ ) {
+ return false;
+ }
+ }
+ }
+ return true;
+ }
+
+ /**
+ * The base implementation of `_.isNative` without bad shim checks.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a native function,
+ * else `false`.
+ */
+ function baseIsNative(value) {
+ if (!isObject(value) || isMasked(value)) {
+ return false;
+ }
+ var pattern = isFunction(value) ? reIsNative : reIsHostCtor;
+ return pattern.test(toSource(value));
+ }
+
+ /**
+ * The base implementation of `_.isRegExp` without Node.js optimizations.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
+ */
+ function baseIsRegExp(value) {
+ return isObjectLike(value) && baseGetTag(value) == regexpTag;
+ }
+
+ /**
+ * The base implementation of `_.isSet` without Node.js optimizations.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a set, else `false`.
+ */
+ function baseIsSet(value) {
+ return isObjectLike(value) && getTag(value) == setTag;
+ }
+
+ /**
+ * The base implementation of `_.isTypedArray` without Node.js optimizations.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
+ */
+ function baseIsTypedArray(value) {
+ return (
+ isObjectLike(value) &&
+ isLength(value.length) &&
+ !!typedArrayTags[baseGetTag(value)]
+ );
+ }
+
+ /**
+ * The base implementation of `_.iteratee`.
+ *
+ * @private
+ * @param {*} [value=_.identity] The value to convert to an iteratee.
+ * @returns {Function} Returns the iteratee.
+ */
+ function baseIteratee(value) {
+ // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.
+ // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.
+ if (typeof value == 'function') {
+ return value;
+ }
+ if (value == null) {
+ return identity;
+ }
+ if (typeof value == 'object') {
+ return isArray(value)
+ ? baseMatchesProperty(value[0], value[1])
+ : baseMatches(value);
+ }
+ return property(value);
+ }
+
+ /**
+ * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of property names.
+ */
+ function baseKeys(object) {
+ if (!isPrototype(object)) {
+ return nativeKeys(object);
+ }
+ var result = [];
+ for (var key in Object(object)) {
+ if (hasOwnProperty.call(object, key) && key != 'constructor') {
+ result.push(key);
+ }
+ }
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of property names.
+ */
+ function baseKeysIn(object) {
+ if (!isObject(object)) {
+ return nativeKeysIn(object);
+ }
+ var isProto = isPrototype(object),
+ result = [];
+
+ for (var key in object) {
+ if (
+ !(
+ key == 'constructor' &&
+ (isProto || !hasOwnProperty.call(object, key))
+ )
+ ) {
+ result.push(key);
+ }
+ }
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.lt` which doesn't coerce arguments.
+ *
+ * @private
+ * @param {*} value The value to compare.
+ * @param {*} other The other value to compare.
+ * @returns {boolean} Returns `true` if `value` is less than `other`,
+ * else `false`.
+ */
+ function baseLt(value, other) {
+ return value < other;
+ }
+
+ /**
+ * The base implementation of `_.map` without support for iteratee shorthands.
+ *
+ * @private
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @returns {Array} Returns the new mapped array.
+ */
+ function baseMap(collection, iteratee) {
+ var index = -1,
+ result = isArrayLike(collection)
+ ? Array(collection.length)
+ : [];
+
+ baseEach(collection, function(value, key, collection) {
+ result[++index] = iteratee(value, key, collection);
+ });
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.matches` which doesn't clone `source`.
+ *
+ * @private
+ * @param {Object} source The object of property values to match.
+ * @returns {Function} Returns the new spec function.
+ */
+ function baseMatches(source) {
+ var matchData = getMatchData(source);
+ if (matchData.length == 1 && matchData[0][2]) {
+ return matchesStrictComparable(
+ matchData[0][0],
+ matchData[0][1],
+ );
+ }
+ return function(object) {
+ return (
+ object === source || baseIsMatch(object, source, matchData)
+ );
+ };
+ }
+
+ /**
+ * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.
+ *
+ * @private
+ * @param {string} path The path of the property to get.
+ * @param {*} srcValue The value to match.
+ * @returns {Function} Returns the new spec function.
+ */
+ function baseMatchesProperty(path, srcValue) {
+ if (isKey(path) && isStrictComparable(srcValue)) {
+ return matchesStrictComparable(toKey(path), srcValue);
+ }
+ return function(object) {
+ var objValue = get(object, path);
+ return objValue === undefined$1 && objValue === srcValue
+ ? hasIn(object, path)
+ : baseIsEqual(
+ srcValue,
+ objValue,
+ COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG,
+ );
+ };
+ }
+
+ /**
+ * The base implementation of `_.merge` without support for multiple sources.
+ *
+ * @private
+ * @param {Object} object The destination object.
+ * @param {Object} source The source object.
+ * @param {number} srcIndex The index of `source`.
+ * @param {Function} [customizer] The function to customize merged values.
+ * @param {Object} [stack] Tracks traversed source values and their merged
+ * counterparts.
+ */
+ function baseMerge(object, source, srcIndex, customizer, stack) {
+ if (object === source) {
+ return;
+ }
+ baseFor(
+ source,
+ function(srcValue, key) {
+ stack || (stack = new Stack());
+ if (isObject(srcValue)) {
+ baseMergeDeep(
+ object,
+ source,
+ key,
+ srcIndex,
+ baseMerge,
+ customizer,
+ stack,
+ );
+ } else {
+ var newValue = customizer
+ ? customizer(
+ safeGet(object, key),
+ srcValue,
+ key + '',
+ object,
+ source,
+ stack,
+ )
+ : undefined$1;
+
+ if (newValue === undefined$1) {
+ newValue = srcValue;
+ }
+ assignMergeValue(object, key, newValue);
+ }
+ },
+ keysIn,
+ );
+ }
+
+ /**
+ * A specialized version of `baseMerge` for arrays and objects which performs
+ * deep merges and tracks traversed objects enabling objects with circular
+ * references to be merged.
+ *
+ * @private
+ * @param {Object} object The destination object.
+ * @param {Object} source The source object.
+ * @param {string} key The key of the value to merge.
+ * @param {number} srcIndex The index of `source`.
+ * @param {Function} mergeFunc The function to merge values.
+ * @param {Function} [customizer] The function to customize assigned values.
+ * @param {Object} [stack] Tracks traversed source values and their merged
+ * counterparts.
+ */
+ function baseMergeDeep(
+ object,
+ source,
+ key,
+ srcIndex,
+ mergeFunc,
+ customizer,
+ stack,
+ ) {
+ var objValue = safeGet(object, key),
+ srcValue = safeGet(source, key),
+ stacked = stack.get(srcValue);
+
+ if (stacked) {
+ assignMergeValue(object, key, stacked);
+ return;
+ }
+ var newValue = customizer
+ ? customizer(
+ objValue,
+ srcValue,
+ key + '',
+ object,
+ source,
+ stack,
+ )
+ : undefined$1;
+
+ var isCommon = newValue === undefined$1;
+
+ if (isCommon) {
+ var isArr = isArray(srcValue),
+ isBuff = !isArr && isBuffer(srcValue),
+ isTyped = !isArr && !isBuff && isTypedArray(srcValue);
+
+ newValue = srcValue;
+ if (isArr || isBuff || isTyped) {
+ if (isArray(objValue)) {
+ newValue = objValue;
+ } else if (isArrayLikeObject(objValue)) {
+ newValue = copyArray(objValue);
+ } else if (isBuff) {
+ isCommon = false;
+ newValue = cloneBuffer(srcValue, true);
+ } else if (isTyped) {
+ isCommon = false;
+ newValue = cloneTypedArray(srcValue, true);
+ } else {
+ newValue = [];
+ }
+ } else if (isPlainObject(srcValue) || isArguments(srcValue)) {
+ newValue = objValue;
+ if (isArguments(objValue)) {
+ newValue = toPlainObject(objValue);
+ } else if (!isObject(objValue) || isFunction(objValue)) {
+ newValue = initCloneObject(srcValue);
+ }
+ } else {
+ isCommon = false;
+ }
+ }
+ if (isCommon) {
+ // Recursively merge objects and arrays (susceptible to call stack limits).
+ stack.set(srcValue, newValue);
+ mergeFunc(newValue, srcValue, srcIndex, customizer, stack);
+ stack['delete'](srcValue);
+ }
+ assignMergeValue(object, key, newValue);
+ }
+
+ /**
+ * The base implementation of `_.nth` which doesn't coerce arguments.
+ *
+ * @private
+ * @param {Array} array The array to query.
+ * @param {number} n The index of the element to return.
+ * @returns {*} Returns the nth element of `array`.
+ */
+ function baseNth(array, n) {
+ var length = array.length;
+ if (!length) {
+ return;
+ }
+ n += n < 0 ? length : 0;
+ return isIndex(n, length) ? array[n] : undefined$1;
+ }
+
+ /**
+ * The base implementation of `_.orderBy` without param guards.
+ *
+ * @private
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
+ * @param {string[]} orders The sort orders of `iteratees`.
+ * @returns {Array} Returns the new sorted array.
+ */
+ function baseOrderBy(collection, iteratees, orders) {
+ var index = -1;
+ iteratees = arrayMap(
+ iteratees.length ? iteratees : [identity],
+ baseUnary(getIteratee()),
+ );
+
+ var result = baseMap(collection, function(value, key, collection) {
+ var criteria = arrayMap(iteratees, function(iteratee) {
+ return iteratee(value);
+ });
+ return {criteria: criteria, index: ++index, value: value};
+ });
+
+ return baseSortBy(result, function(object, other) {
+ return compareMultiple(object, other, orders);
+ });
+ }
+
+ /**
+ * The base implementation of `_.pick` without support for individual
+ * property identifiers.
+ *
+ * @private
+ * @param {Object} object The source object.
+ * @param {string[]} paths The property paths to pick.
+ * @returns {Object} Returns the new object.
+ */
+ function basePick(object, paths) {
+ return basePickBy(object, paths, function(value, path) {
+ return hasIn(object, path);
+ });
+ }
+
+ /**
+ * The base implementation of `_.pickBy` without support for iteratee shorthands.
+ *
+ * @private
+ * @param {Object} object The source object.
+ * @param {string[]} paths The property paths to pick.
+ * @param {Function} predicate The function invoked per property.
+ * @returns {Object} Returns the new object.
+ */
+ function basePickBy(object, paths, predicate) {
+ var index = -1,
+ length = paths.length,
+ result = {};
+
+ while (++index < length) {
+ var path = paths[index],
+ value = baseGet(object, path);
+
+ if (predicate(value, path)) {
+ baseSet(result, castPath(path, object), value);
+ }
+ }
+ return result;
+ }
+
+ /**
+ * A specialized version of `baseProperty` which supports deep paths.
+ *
+ * @private
+ * @param {Array|string} path The path of the property to get.
+ * @returns {Function} Returns the new accessor function.
+ */
+ function basePropertyDeep(path) {
+ return function(object) {
+ return baseGet(object, path);
+ };
+ }
+
+ /**
+ * The base implementation of `_.pullAllBy` without support for iteratee
+ * shorthands.
+ *
+ * @private
+ * @param {Array} array The array to modify.
+ * @param {Array} values The values to remove.
+ * @param {Function} [iteratee] The iteratee invoked per element.
+ * @param {Function} [comparator] The comparator invoked per element.
+ * @returns {Array} Returns `array`.
+ */
+ function basePullAll(array, values, iteratee, comparator) {
+ var indexOf = comparator ? baseIndexOfWith : baseIndexOf,
+ index = -1,
+ length = values.length,
+ seen = array;
+
+ if (array === values) {
+ values = copyArray(values);
+ }
+ if (iteratee) {
+ seen = arrayMap(array, baseUnary(iteratee));
+ }
+ while (++index < length) {
+ var fromIndex = 0,
+ value = values[index],
+ computed = iteratee ? iteratee(value) : value;
+
+ while (
+ (fromIndex = indexOf(
+ seen,
+ computed,
+ fromIndex,
+ comparator,
+ )) > -1
+ ) {
+ if (seen !== array) {
+ splice.call(seen, fromIndex, 1);
+ }
+ splice.call(array, fromIndex, 1);
+ }
+ }
+ return array;
+ }
+
+ /**
+ * The base implementation of `_.pullAt` without support for individual
+ * indexes or capturing the removed elements.
+ *
+ * @private
+ * @param {Array} array The array to modify.
+ * @param {number[]} indexes The indexes of elements to remove.
+ * @returns {Array} Returns `array`.
+ */
+ function basePullAt(array, indexes) {
+ var length = array ? indexes.length : 0,
+ lastIndex = length - 1;
+
+ while (length--) {
+ var index = indexes[length];
+ if (length == lastIndex || index !== previous) {
+ var previous = index;
+ if (isIndex(index)) {
+ splice.call(array, index, 1);
+ } else {
+ baseUnset(array, index);
+ }
+ }
+ }
+ return array;
+ }
+
+ /**
+ * The base implementation of `_.random` without support for returning
+ * floating-point numbers.
+ *
+ * @private
+ * @param {number} lower The lower bound.
+ * @param {number} upper The upper bound.
+ * @returns {number} Returns the random number.
+ */
+ function baseRandom(lower, upper) {
+ return lower + nativeFloor(nativeRandom() * (upper - lower + 1));
+ }
+
+ /**
+ * The base implementation of `_.range` and `_.rangeRight` which doesn't
+ * coerce arguments.
+ *
+ * @private
+ * @param {number} start The start of the range.
+ * @param {number} end The end of the range.
+ * @param {number} step The value to increment or decrement by.
+ * @param {boolean} [fromRight] Specify iterating from right to left.
+ * @returns {Array} Returns the range of numbers.
+ */
+ function baseRange(start, end, step, fromRight) {
+ var index = -1,
+ length = nativeMax(nativeCeil((end - start) / (step || 1)), 0),
+ result = Array(length);
+
+ while (length--) {
+ result[fromRight ? length : ++index] = start;
+ start += step;
+ }
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.repeat` which doesn't coerce arguments.
+ *
+ * @private
+ * @param {string} string The string to repeat.
+ * @param {number} n The number of times to repeat the string.
+ * @returns {string} Returns the repeated string.
+ */
+ function baseRepeat(string, n) {
+ var result = '';
+ if (!string || n < 1 || n > MAX_SAFE_INTEGER) {
+ return result;
+ }
+ // Leverage the exponentiation by squaring algorithm for a faster repeat.
+ // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.
+ do {
+ if (n % 2) {
+ result += string;
+ }
+ n = nativeFloor(n / 2);
+ if (n) {
+ string += string;
+ }
+ } while (n);
+
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.rest` which doesn't validate or coerce arguments.
+ *
+ * @private
+ * @param {Function} func The function to apply a rest parameter to.
+ * @param {number} [start=func.length-1] The start position of the rest parameter.
+ * @returns {Function} Returns the new function.
+ */
+ function baseRest(func, start) {
+ return setToString(overRest(func, start, identity), func + '');
+ }
+
+ /**
+ * The base implementation of `_.sample`.
+ *
+ * @private
+ * @param {Array|Object} collection The collection to sample.
+ * @returns {*} Returns the random element.
+ */
+ function baseSample(collection) {
+ return arraySample(values(collection));
+ }
+
+ /**
+ * The base implementation of `_.sampleSize` without param guards.
+ *
+ * @private
+ * @param {Array|Object} collection The collection to sample.
+ * @param {number} n The number of elements to sample.
+ * @returns {Array} Returns the random elements.
+ */
+ function baseSampleSize(collection, n) {
+ var array = values(collection);
+ return shuffleSelf(array, baseClamp(n, 0, array.length));
+ }
+
+ /**
+ * The base implementation of `_.set`.
+ *
+ * @private
+ * @param {Object} object The object to modify.
+ * @param {Array|string} path The path of the property to set.
+ * @param {*} value The value to set.
+ * @param {Function} [customizer] The function to customize path creation.
+ * @returns {Object} Returns `object`.
+ */
+ function baseSet(object, path, value, customizer) {
+ if (!isObject(object)) {
+ return object;
+ }
+ path = castPath(path, object);
+
+ var index = -1,
+ length = path.length,
+ lastIndex = length - 1,
+ nested = object;
+
+ while (nested != null && ++index < length) {
+ var key = toKey(path[index]),
+ newValue = value;
+
+ if (index != lastIndex) {
+ var objValue = nested[key];
+ newValue = customizer
+ ? customizer(objValue, key, nested)
+ : undefined$1;
+ if (newValue === undefined$1) {
+ newValue = isObject(objValue)
+ ? objValue
+ : isIndex(path[index + 1])
+ ? []
+ : {};
+ }
+ }
+ assignValue(nested, key, newValue);
+ nested = nested[key];
+ }
+ return object;
+ }
+
+ /**
+ * The base implementation of `setData` without support for hot loop shorting.
+ *
+ * @private
+ * @param {Function} func The function to associate metadata with.
+ * @param {*} data The metadata.
+ * @returns {Function} Returns `func`.
+ */
+ var baseSetData = !metaMap
+ ? identity
+ : function(func, data) {
+ metaMap.set(func, data);
+ return func;
+ };
+
+ /**
+ * The base implementation of `setToString` without support for hot loop shorting.
+ *
+ * @private
+ * @param {Function} func The function to modify.
+ * @param {Function} string The `toString` result.
+ * @returns {Function} Returns `func`.
+ */
+ var baseSetToString = !defineProperty
+ ? identity
+ : function(func, string) {
+ return defineProperty(func, 'toString', {
+ configurable: true,
+ enumerable: false,
+ value: constant(string),
+ writable: true,
+ });
+ };
+
+ /**
+ * The base implementation of `_.shuffle`.
+ *
+ * @private
+ * @param {Array|Object} collection The collection to shuffle.
+ * @returns {Array} Returns the new shuffled array.
+ */
+ function baseShuffle(collection) {
+ return shuffleSelf(values(collection));
+ }
+
+ /**
+ * The base implementation of `_.slice` without an iteratee call guard.
+ *
+ * @private
+ * @param {Array} array The array to slice.
+ * @param {number} [start=0] The start position.
+ * @param {number} [end=array.length] The end position.
+ * @returns {Array} Returns the slice of `array`.
+ */
+ function baseSlice(array, start, end) {
+ var index = -1,
+ length = array.length;
+
+ if (start < 0) {
+ start = -start > length ? 0 : length + start;
+ }
+ end = end > length ? length : end;
+ if (end < 0) {
+ end += length;
+ }
+ length = start > end ? 0 : (end - start) >>> 0;
+ start >>>= 0;
+
+ var result = Array(length);
+ while (++index < length) {
+ result[index] = array[index + start];
+ }
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.some` without support for iteratee shorthands.
+ *
+ * @private
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function} predicate The function invoked per iteration.
+ * @returns {boolean} Returns `true` if any element passes the predicate check,
+ * else `false`.
+ */
+ function baseSome(collection, predicate) {
+ var result;
+
+ baseEach(collection, function(value, index, collection) {
+ result = predicate(value, index, collection);
+ return !result;
+ });
+ return !!result;
+ }
+
+ /**
+ * The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which
+ * performs a binary search of `array` to determine the index at which `value`
+ * should be inserted into `array` in order to maintain its sort order.
+ *
+ * @private
+ * @param {Array} array The sorted array to inspect.
+ * @param {*} value The value to evaluate.
+ * @param {boolean} [retHighest] Specify returning the highest qualified index.
+ * @returns {number} Returns the index at which `value` should be inserted
+ * into `array`.
+ */
+ function baseSortedIndex(array, value, retHighest) {
+ var low = 0,
+ high = array == null ? low : array.length;
+
+ if (
+ typeof value == 'number' &&
+ value === value &&
+ high <= HALF_MAX_ARRAY_LENGTH
+ ) {
+ while (low < high) {
+ var mid = (low + high) >>> 1,
+ computed = array[mid];
+
+ if (
+ computed !== null &&
+ !isSymbol(computed) &&
+ (retHighest ? computed <= value : computed < value)
+ ) {
+ low = mid + 1;
+ } else {
+ high = mid;
+ }
+ }
+ return high;
+ }
+ return baseSortedIndexBy(array, value, identity, retHighest);
+ }
+
+ /**
+ * The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy`
+ * which invokes `iteratee` for `value` and each element of `array` to compute
+ * their sort ranking. The iteratee is invoked with one argument; (value).
+ *
+ * @private
+ * @param {Array} array The sorted array to inspect.
+ * @param {*} value The value to evaluate.
+ * @param {Function} iteratee The iteratee invoked per element.
+ * @param {boolean} [retHighest] Specify returning the highest qualified index.
+ * @returns {number} Returns the index at which `value` should be inserted
+ * into `array`.
+ */
+ function baseSortedIndexBy(array, value, iteratee, retHighest) {
+ value = iteratee(value);
+
+ var low = 0,
+ high = array == null ? 0 : array.length,
+ valIsNaN = value !== value,
+ valIsNull = value === null,
+ valIsSymbol = isSymbol(value),
+ valIsUndefined = value === undefined$1;
+
+ while (low < high) {
+ var mid = nativeFloor((low + high) / 2),
+ computed = iteratee(array[mid]),
+ othIsDefined = computed !== undefined$1,
+ othIsNull = computed === null,
+ othIsReflexive = computed === computed,
+ othIsSymbol = isSymbol(computed);
+
+ if (valIsNaN) {
+ var setLow = retHighest || othIsReflexive;
+ } else if (valIsUndefined) {
+ setLow = othIsReflexive && (retHighest || othIsDefined);
+ } else if (valIsNull) {
+ setLow =
+ othIsReflexive &&
+ othIsDefined &&
+ (retHighest || !othIsNull);
+ } else if (valIsSymbol) {
+ setLow =
+ othIsReflexive &&
+ othIsDefined &&
+ !othIsNull &&
+ (retHighest || !othIsSymbol);
+ } else if (othIsNull || othIsSymbol) {
+ setLow = false;
+ } else {
+ setLow = retHighest ? computed <= value : computed < value;
+ }
+ if (setLow) {
+ low = mid + 1;
+ } else {
+ high = mid;
+ }
+ }
+ return nativeMin(high, MAX_ARRAY_INDEX);
+ }
+
+ /**
+ * The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without
+ * support for iteratee shorthands.
+ *
+ * @private
+ * @param {Array} array The array to inspect.
+ * @param {Function} [iteratee] The iteratee invoked per element.
+ * @returns {Array} Returns the new duplicate free array.
+ */
+ function baseSortedUniq(array, iteratee) {
+ var index = -1,
+ length = array.length,
+ resIndex = 0,
+ result = [];
+
+ while (++index < length) {
+ var value = array[index],
+ computed = iteratee ? iteratee(value) : value;
+
+ if (!index || !eq(computed, seen)) {
+ var seen = computed;
+ result[resIndex++] = value === 0 ? 0 : value;
+ }
+ }
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.toNumber` which doesn't ensure correct
+ * conversions of binary, hexadecimal, or octal string values.
+ *
+ * @private
+ * @param {*} value The value to process.
+ * @returns {number} Returns the number.
+ */
+ function baseToNumber(value) {
+ if (typeof value == 'number') {
+ return value;
+ }
+ if (isSymbol(value)) {
+ return NAN;
+ }
+ return +value;
+ }
+
+ /**
+ * The base implementation of `_.toString` which doesn't convert nullish
+ * values to empty strings.
+ *
+ * @private
+ * @param {*} value The value to process.
+ * @returns {string} Returns the string.
+ */
+ function baseToString(value) {
+ // Exit early for strings to avoid a performance hit in some environments.
+ if (typeof value == 'string') {
+ return value;
+ }
+ if (isArray(value)) {
+ // Recursively convert values (susceptible to call stack limits).
+ return arrayMap(value, baseToString) + '';
+ }
+ if (isSymbol(value)) {
+ return symbolToString ? symbolToString.call(value) : '';
+ }
+ var result = value + '';
+ return result == '0' && 1 / value == -INFINITY ? '-0' : result;
+ }
+
+ /**
+ * The base implementation of `_.uniqBy` without support for iteratee shorthands.
+ *
+ * @private
+ * @param {Array} array The array to inspect.
+ * @param {Function} [iteratee] The iteratee invoked per element.
+ * @param {Function} [comparator] The comparator invoked per element.
+ * @returns {Array} Returns the new duplicate free array.
+ */
+ function baseUniq(array, iteratee, comparator) {
+ var index = -1,
+ includes = arrayIncludes,
+ length = array.length,
+ isCommon = true,
+ result = [],
+ seen = result;
+
+ if (comparator) {
+ isCommon = false;
+ includes = arrayIncludesWith;
+ } else if (length >= LARGE_ARRAY_SIZE) {
+ var set = iteratee ? null : createSet(array);
+ if (set) {
+ return setToArray(set);
+ }
+ isCommon = false;
+ includes = cacheHas;
+ seen = new SetCache();
+ } else {
+ seen = iteratee ? [] : result;
+ }
+ outer: while (++index < length) {
+ var value = array[index],
+ computed = iteratee ? iteratee(value) : value;
+
+ value = comparator || value !== 0 ? value : 0;
+ if (isCommon && computed === computed) {
+ var seenIndex = seen.length;
+ while (seenIndex--) {
+ if (seen[seenIndex] === computed) {
+ continue outer;
+ }
+ }
+ if (iteratee) {
+ seen.push(computed);
+ }
+ result.push(value);
+ } else if (!includes(seen, computed, comparator)) {
+ if (seen !== result) {
+ seen.push(computed);
+ }
+ result.push(value);
+ }
+ }
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.unset`.
+ *
+ * @private
+ * @param {Object} object The object to modify.
+ * @param {Array|string} path The property path to unset.
+ * @returns {boolean} Returns `true` if the property is deleted, else `false`.
+ */
+ function baseUnset(object, path) {
+ path = castPath(path, object);
+ object = parent(object, path);
+ return object == null || delete object[toKey(last(path))];
+ }
+
+ /**
+ * The base implementation of `_.update`.
+ *
+ * @private
+ * @param {Object} object The object to modify.
+ * @param {Array|string} path The path of the property to update.
+ * @param {Function} updater The function to produce the updated value.
+ * @param {Function} [customizer] The function to customize path creation.
+ * @returns {Object} Returns `object`.
+ */
+ function baseUpdate(object, path, updater, customizer) {
+ return baseSet(
+ object,
+ path,
+ updater(baseGet(object, path)),
+ customizer,
+ );
+ }
+
+ /**
+ * The base implementation of methods like `_.dropWhile` and `_.takeWhile`
+ * without support for iteratee shorthands.
+ *
+ * @private
+ * @param {Array} array The array to query.
+ * @param {Function} predicate The function invoked per iteration.
+ * @param {boolean} [isDrop] Specify dropping elements instead of taking them.
+ * @param {boolean} [fromRight] Specify iterating from right to left.
+ * @returns {Array} Returns the slice of `array`.
+ */
+ function baseWhile(array, predicate, isDrop, fromRight) {
+ var length = array.length,
+ index = fromRight ? length : -1;
+
+ while (
+ (fromRight ? index-- : ++index < length) &&
+ predicate(array[index], index, array)
+ ) {}
+
+ return isDrop
+ ? baseSlice(
+ array,
+ fromRight ? 0 : index,
+ fromRight ? index + 1 : length,
+ )
+ : baseSlice(
+ array,
+ fromRight ? index + 1 : 0,
+ fromRight ? length : index,
+ );
+ }
+
+ /**
+ * The base implementation of `wrapperValue` which returns the result of
+ * performing a sequence of actions on the unwrapped `value`, where each
+ * successive action is supplied the return value of the previous.
+ *
+ * @private
+ * @param {*} value The unwrapped value.
+ * @param {Array} actions Actions to perform to resolve the unwrapped value.
+ * @returns {*} Returns the resolved value.
+ */
+ function baseWrapperValue(value, actions) {
+ var result = value;
+ if (result instanceof LazyWrapper) {
+ result = result.value();
+ }
+ return arrayReduce(
+ actions,
+ function(result, action) {
+ return action.func.apply(
+ action.thisArg,
+ arrayPush([result], action.args),
+ );
+ },
+ result,
+ );
+ }
+
+ /**
+ * The base implementation of methods like `_.xor`, without support for
+ * iteratee shorthands, that accepts an array of arrays to inspect.
+ *
+ * @private
+ * @param {Array} arrays The arrays to inspect.
+ * @param {Function} [iteratee] The iteratee invoked per element.
+ * @param {Function} [comparator] The comparator invoked per element.
+ * @returns {Array} Returns the new array of values.
+ */
+ function baseXor(arrays, iteratee, comparator) {
+ var length = arrays.length;
+ if (length < 2) {
+ return length ? baseUniq(arrays[0]) : [];
+ }
+ var index = -1,
+ result = Array(length);
+
+ while (++index < length) {
+ var array = arrays[index],
+ othIndex = -1;
+
+ while (++othIndex < length) {
+ if (othIndex != index) {
+ result[index] = baseDifference(
+ result[index] || array,
+ arrays[othIndex],
+ iteratee,
+ comparator,
+ );
+ }
+ }
+ }
+ return baseUniq(baseFlatten(result, 1), iteratee, comparator);
+ }
+
+ /**
+ * This base implementation of `_.zipObject` which assigns values using `assignFunc`.
+ *
+ * @private
+ * @param {Array} props The property identifiers.
+ * @param {Array} values The property values.
+ * @param {Function} assignFunc The function to assign values.
+ * @returns {Object} Returns the new object.
+ */
+ function baseZipObject(props, values, assignFunc) {
+ var index = -1,
+ length = props.length,
+ valsLength = values.length,
+ result = {};
+
+ while (++index < length) {
+ var value = index < valsLength ? values[index] : undefined$1;
+ assignFunc(result, props[index], value);
+ }
+ return result;
+ }
+
+ /**
+ * Casts `value` to an empty array if it's not an array like object.
+ *
+ * @private
+ * @param {*} value The value to inspect.
+ * @returns {Array|Object} Returns the cast array-like object.
+ */
+ function castArrayLikeObject(value) {
+ return isArrayLikeObject(value) ? value : [];
+ }
+
+ /**
+ * Casts `value` to `identity` if it's not a function.
+ *
+ * @private
+ * @param {*} value The value to inspect.
+ * @returns {Function} Returns cast function.
+ */
+ function castFunction(value) {
+ return typeof value == 'function' ? value : identity;
+ }
+
+ /**
+ * Casts `value` to a path array if it's not one.
+ *
+ * @private
+ * @param {*} value The value to inspect.
+ * @param {Object} [object] The object to query keys on.
+ * @returns {Array} Returns the cast property path array.
+ */
+ function castPath(value, object) {
+ if (isArray(value)) {
+ return value;
+ }
+ return isKey(value, object)
+ ? [value]
+ : stringToPath(toString(value));
+ }
+
+ /**
+ * A `baseRest` alias which can be replaced with `identity` by module
+ * replacement plugins.
+ *
+ * @private
+ * @type {Function}
+ * @param {Function} func The function to apply a rest parameter to.
+ * @returns {Function} Returns the new function.
+ */
+ var castRest = baseRest;
+
+ /**
+ * Casts `array` to a slice if it's needed.
+ *
+ * @private
+ * @param {Array} array The array to inspect.
+ * @param {number} start The start position.
+ * @param {number} [end=array.length] The end position.
+ * @returns {Array} Returns the cast slice.
+ */
+ function castSlice(array, start, end) {
+ var length = array.length;
+ end = end === undefined$1 ? length : end;
+ return !start && end >= length
+ ? array
+ : baseSlice(array, start, end);
+ }
+
+ /**
+ * A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout).
+ *
+ * @private
+ * @param {number|Object} id The timer id or timeout object of the timer to clear.
+ */
+ var clearTimeout =
+ ctxClearTimeout ||
+ function(id) {
+ return root.clearTimeout(id);
+ };
+
+ /**
+ * Creates a clone of `buffer`.
+ *
+ * @private
+ * @param {Buffer} buffer The buffer to clone.
+ * @param {boolean} [isDeep] Specify a deep clone.
+ * @returns {Buffer} Returns the cloned buffer.
+ */
+ function cloneBuffer(buffer, isDeep) {
+ if (isDeep) {
+ return buffer.slice();
+ }
+ var length = buffer.length,
+ result = allocUnsafe
+ ? allocUnsafe(length)
+ : new buffer.constructor(length);
+
+ buffer.copy(result);
+ return result;
+ }
+
+ /**
+ * Creates a clone of `arrayBuffer`.
+ *
+ * @private
+ * @param {ArrayBuffer} arrayBuffer The array buffer to clone.
+ * @returns {ArrayBuffer} Returns the cloned array buffer.
+ */
+ function cloneArrayBuffer(arrayBuffer) {
+ var result = new arrayBuffer.constructor(arrayBuffer.byteLength);
+ new Uint8Array(result).set(new Uint8Array(arrayBuffer));
+ return result;
+ }
+
+ /**
+ * Creates a clone of `dataView`.
+ *
+ * @private
+ * @param {Object} dataView The data view to clone.
+ * @param {boolean} [isDeep] Specify a deep clone.
+ * @returns {Object} Returns the cloned data view.
+ */
+ function cloneDataView(dataView, isDeep) {
+ var buffer = isDeep
+ ? cloneArrayBuffer(dataView.buffer)
+ : dataView.buffer;
+ return new dataView.constructor(
+ buffer,
+ dataView.byteOffset,
+ dataView.byteLength,
+ );
+ }
+
+ /**
+ * Creates a clone of `regexp`.
+ *
+ * @private
+ * @param {Object} regexp The regexp to clone.
+ * @returns {Object} Returns the cloned regexp.
+ */
+ function cloneRegExp(regexp) {
+ var result = new regexp.constructor(
+ regexp.source,
+ reFlags.exec(regexp),
+ );
+ result.lastIndex = regexp.lastIndex;
+ return result;
+ }
+
+ /**
+ * Creates a clone of the `symbol` object.
+ *
+ * @private
+ * @param {Object} symbol The symbol object to clone.
+ * @returns {Object} Returns the cloned symbol object.
+ */
+ function cloneSymbol(symbol) {
+ return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};
+ }
+
+ /**
+ * Creates a clone of `typedArray`.
+ *
+ * @private
+ * @param {Object} typedArray The typed array to clone.
+ * @param {boolean} [isDeep] Specify a deep clone.
+ * @returns {Object} Returns the cloned typed array.
+ */
+ function cloneTypedArray(typedArray, isDeep) {
+ var buffer = isDeep
+ ? cloneArrayBuffer(typedArray.buffer)
+ : typedArray.buffer;
+ return new typedArray.constructor(
+ buffer,
+ typedArray.byteOffset,
+ typedArray.length,
+ );
+ }
+
+ /**
+ * Compares values to sort them in ascending order.
+ *
+ * @private
+ * @param {*} value The value to compare.
+ * @param {*} other The other value to compare.
+ * @returns {number} Returns the sort order indicator for `value`.
+ */
+ function compareAscending(value, other) {
+ if (value !== other) {
+ var valIsDefined = value !== undefined$1,
+ valIsNull = value === null,
+ valIsReflexive = value === value,
+ valIsSymbol = isSymbol(value);
+
+ var othIsDefined = other !== undefined$1,
+ othIsNull = other === null,
+ othIsReflexive = other === other,
+ othIsSymbol = isSymbol(other);
+
+ if (
+ (!othIsNull &&
+ !othIsSymbol &&
+ !valIsSymbol &&
+ value > other) ||
+ (valIsSymbol &&
+ othIsDefined &&
+ othIsReflexive &&
+ !othIsNull &&
+ !othIsSymbol) ||
+ (valIsNull && othIsDefined && othIsReflexive) ||
+ (!valIsDefined && othIsReflexive) ||
+ !valIsReflexive
+ ) {
+ return 1;
+ }
+ if (
+ (!valIsNull &&
+ !valIsSymbol &&
+ !othIsSymbol &&
+ value < other) ||
+ (othIsSymbol &&
+ valIsDefined &&
+ valIsReflexive &&
+ !valIsNull &&
+ !valIsSymbol) ||
+ (othIsNull && valIsDefined && valIsReflexive) ||
+ (!othIsDefined && valIsReflexive) ||
+ !othIsReflexive
+ ) {
+ return -1;
+ }
+ }
+ return 0;
+ }
+
+ /**
+ * Used by `_.orderBy` to compare multiple properties of a value to another
+ * and stable sort them.
+ *
+ * If `orders` is unspecified, all values are sorted in ascending order. Otherwise,
+ * specify an order of "desc" for descending or "asc" for ascending sort order
+ * of corresponding values.
+ *
+ * @private
+ * @param {Object} object The object to compare.
+ * @param {Object} other The other object to compare.
+ * @param {boolean[]|string[]} orders The order to sort by for each property.
+ * @returns {number} Returns the sort order indicator for `object`.
+ */
+ function compareMultiple(object, other, orders) {
+ var index = -1,
+ objCriteria = object.criteria,
+ othCriteria = other.criteria,
+ length = objCriteria.length,
+ ordersLength = orders.length;
+
+ while (++index < length) {
+ var result = compareAscending(
+ objCriteria[index],
+ othCriteria[index],
+ );
+ if (result) {
+ if (index >= ordersLength) {
+ return result;
+ }
+ var order = orders[index];
+ return result * (order == 'desc' ? -1 : 1);
+ }
+ }
+ // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications
+ // that causes it, under certain circumstances, to provide the same value for
+ // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247
+ // for more details.
+ //
+ // This also ensures a stable sort in V8 and other engines.
+ // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details.
+ return object.index - other.index;
+ }
+
+ /**
+ * Creates an array that is the composition of partially applied arguments,
+ * placeholders, and provided arguments into a single array of arguments.
+ *
+ * @private
+ * @param {Array} args The provided arguments.
+ * @param {Array} partials The arguments to prepend to those provided.
+ * @param {Array} holders The `partials` placeholder indexes.
+ * @params {boolean} [isCurried] Specify composing for a curried function.
+ * @returns {Array} Returns the new array of composed arguments.
+ */
+ function composeArgs(args, partials, holders, isCurried) {
+ var argsIndex = -1,
+ argsLength = args.length,
+ holdersLength = holders.length,
+ leftIndex = -1,
+ leftLength = partials.length,
+ rangeLength = nativeMax(argsLength - holdersLength, 0),
+ result = Array(leftLength + rangeLength),
+ isUncurried = !isCurried;
+
+ while (++leftIndex < leftLength) {
+ result[leftIndex] = partials[leftIndex];
+ }
+ while (++argsIndex < holdersLength) {
+ if (isUncurried || argsIndex < argsLength) {
+ result[holders[argsIndex]] = args[argsIndex];
+ }
+ }
+ while (rangeLength--) {
+ result[leftIndex++] = args[argsIndex++];
+ }
+ return result;
+ }
+
+ /**
+ * This function is like `composeArgs` except that the arguments composition
+ * is tailored for `_.partialRight`.
+ *
+ * @private
+ * @param {Array} args The provided arguments.
+ * @param {Array} partials The arguments to append to those provided.
+ * @param {Array} holders The `partials` placeholder indexes.
+ * @params {boolean} [isCurried] Specify composing for a curried function.
+ * @returns {Array} Returns the new array of composed arguments.
+ */
+ function composeArgsRight(args, partials, holders, isCurried) {
+ var argsIndex = -1,
+ argsLength = args.length,
+ holdersIndex = -1,
+ holdersLength = holders.length,
+ rightIndex = -1,
+ rightLength = partials.length,
+ rangeLength = nativeMax(argsLength - holdersLength, 0),
+ result = Array(rangeLength + rightLength),
+ isUncurried = !isCurried;
+
+ while (++argsIndex < rangeLength) {
+ result[argsIndex] = args[argsIndex];
+ }
+ var offset = argsIndex;
+ while (++rightIndex < rightLength) {
+ result[offset + rightIndex] = partials[rightIndex];
+ }
+ while (++holdersIndex < holdersLength) {
+ if (isUncurried || argsIndex < argsLength) {
+ result[offset + holders[holdersIndex]] = args[argsIndex++];
+ }
+ }
+ return result;
+ }
+
+ /**
+ * Copies the values of `source` to `array`.
+ *
+ * @private
+ * @param {Array} source The array to copy values from.
+ * @param {Array} [array=[]] The array to copy values to.
+ * @returns {Array} Returns `array`.
+ */
+ function copyArray(source, array) {
+ var index = -1,
+ length = source.length;
+
+ array || (array = Array(length));
+ while (++index < length) {
+ array[index] = source[index];
+ }
+ return array;
+ }
+
+ /**
+ * Copies properties of `source` to `object`.
+ *
+ * @private
+ * @param {Object} source The object to copy properties from.
+ * @param {Array} props The property identifiers to copy.
+ * @param {Object} [object={}] The object to copy properties to.
+ * @param {Function} [customizer] The function to customize copied values.
+ * @returns {Object} Returns `object`.
+ */
+ function copyObject(source, props, object, customizer) {
+ var isNew = !object;
+ object || (object = {});
+
+ var index = -1,
+ length = props.length;
+
+ while (++index < length) {
+ var key = props[index];
+
+ var newValue = customizer
+ ? customizer(object[key], source[key], key, object, source)
+ : undefined$1;
+
+ if (newValue === undefined$1) {
+ newValue = source[key];
+ }
+ if (isNew) {
+ baseAssignValue(object, key, newValue);
+ } else {
+ assignValue(object, key, newValue);
+ }
+ }
+ return object;
+ }
+
+ /**
+ * Copies own symbols of `source` to `object`.
+ *
+ * @private
+ * @param {Object} source The object to copy symbols from.
+ * @param {Object} [object={}] The object to copy symbols to.
+ * @returns {Object} Returns `object`.
+ */
+ function copySymbols(source, object) {
+ return copyObject(source, getSymbols(source), object);
+ }
+
+ /**
+ * Copies own and inherited symbols of `source` to `object`.
+ *
+ * @private
+ * @param {Object} source The object to copy symbols from.
+ * @param {Object} [object={}] The object to copy symbols to.
+ * @returns {Object} Returns `object`.
+ */
+ function copySymbolsIn(source, object) {
+ return copyObject(source, getSymbolsIn(source), object);
+ }
+
+ /**
+ * Creates a function like `_.groupBy`.
+ *
+ * @private
+ * @param {Function} setter The function to set accumulator values.
+ * @param {Function} [initializer] The accumulator object initializer.
+ * @returns {Function} Returns the new aggregator function.
+ */
+ function createAggregator(setter, initializer) {
+ return function(collection, iteratee) {
+ var func = isArray(collection)
+ ? arrayAggregator
+ : baseAggregator,
+ accumulator = initializer ? initializer() : {};
+
+ return func(
+ collection,
+ setter,
+ getIteratee(iteratee, 2),
+ accumulator,
+ );
+ };
+ }
+
+ /**
+ * Creates a function like `_.assign`.
+ *
+ * @private
+ * @param {Function} assigner The function to assign values.
+ * @returns {Function} Returns the new assigner function.
+ */
+ function createAssigner(assigner) {
+ return baseRest(function(object, sources) {
+ var index = -1,
+ length = sources.length,
+ customizer = length > 1 ? sources[length - 1] : undefined$1,
+ guard = length > 2 ? sources[2] : undefined$1;
+
+ customizer =
+ assigner.length > 3 && typeof customizer == 'function'
+ ? (length--, customizer)
+ : undefined$1;
+
+ if (guard && isIterateeCall(sources[0], sources[1], guard)) {
+ customizer = length < 3 ? undefined$1 : customizer;
+ length = 1;
+ }
+ object = Object(object);
+ while (++index < length) {
+ var source = sources[index];
+ if (source) {
+ assigner(object, source, index, customizer);
+ }
+ }
+ return object;
+ });
+ }
+
+ /**
+ * Creates a `baseEach` or `baseEachRight` function.
+ *
+ * @private
+ * @param {Function} eachFunc The function to iterate over a collection.
+ * @param {boolean} [fromRight] Specify iterating from right to left.
+ * @returns {Function} Returns the new base function.
+ */
+ function createBaseEach(eachFunc, fromRight) {
+ return function(collection, iteratee) {
+ if (collection == null) {
+ return collection;
+ }
+ if (!isArrayLike(collection)) {
+ return eachFunc(collection, iteratee);
+ }
+ var length = collection.length,
+ index = fromRight ? length : -1,
+ iterable = Object(collection);
+
+ while (fromRight ? index-- : ++index < length) {
+ if (iteratee(iterable[index], index, iterable) === false) {
+ break;
+ }
+ }
+ return collection;
+ };
+ }
+
+ /**
+ * Creates a base function for methods like `_.forIn` and `_.forOwn`.
+ *
+ * @private
+ * @param {boolean} [fromRight] Specify iterating from right to left.
+ * @returns {Function} Returns the new base function.
+ */
+ function createBaseFor(fromRight) {
+ return function(object, iteratee, keysFunc) {
+ var index = -1,
+ iterable = Object(object),
+ props = keysFunc(object),
+ length = props.length;
+
+ while (length--) {
+ var key = props[fromRight ? length : ++index];
+ if (iteratee(iterable[key], key, iterable) === false) {
+ break;
+ }
+ }
+ return object;
+ };
+ }
+
+ /**
+ * Creates a function that wraps `func` to invoke it with the optional `this`
+ * binding of `thisArg`.
+ *
+ * @private
+ * @param {Function} func The function to wrap.
+ * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
+ * @param {*} [thisArg] The `this` binding of `func`.
+ * @returns {Function} Returns the new wrapped function.
+ */
+ function createBind(func, bitmask, thisArg) {
+ var isBind = bitmask & WRAP_BIND_FLAG,
+ Ctor = createCtor(func);
+
+ function wrapper() {
+ var fn =
+ this && this !== root && this instanceof wrapper
+ ? Ctor
+ : func;
+ return fn.apply(isBind ? thisArg : this, arguments);
+ }
+ return wrapper;
+ }
+
+ /**
+ * Creates a function like `_.lowerFirst`.
+ *
+ * @private
+ * @param {string} methodName The name of the `String` case method to use.
+ * @returns {Function} Returns the new case function.
+ */
+ function createCaseFirst(methodName) {
+ return function(string) {
+ string = toString(string);
+
+ var strSymbols = hasUnicode(string)
+ ? stringToArray(string)
+ : undefined$1;
+
+ var chr = strSymbols ? strSymbols[0] : string.charAt(0);
+
+ var trailing = strSymbols
+ ? castSlice(strSymbols, 1).join('')
+ : string.slice(1);
+
+ return chr[methodName]() + trailing;
+ };
+ }
+
+ /**
+ * Creates a function like `_.camelCase`.
+ *
+ * @private
+ * @param {Function} callback The function to combine each word.
+ * @returns {Function} Returns the new compounder function.
+ */
+ function createCompounder(callback) {
+ return function(string) {
+ return arrayReduce(
+ words(deburr(string).replace(reApos, '')),
+ callback,
+ '',
+ );
+ };
+ }
+
+ /**
+ * Creates a function that produces an instance of `Ctor` regardless of
+ * whether it was invoked as part of a `new` expression or by `call` or `apply`.
+ *
+ * @private
+ * @param {Function} Ctor The constructor to wrap.
+ * @returns {Function} Returns the new wrapped function.
+ */
+ function createCtor(Ctor) {
+ return function() {
+ // Use a `switch` statement to work with class constructors. See
+ // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist
+ // for more details.
+ var args = arguments;
+ switch (args.length) {
+ case 0:
+ return new Ctor();
+ case 1:
+ return new Ctor(args[0]);
+ case 2:
+ return new Ctor(args[0], args[1]);
+ case 3:
+ return new Ctor(args[0], args[1], args[2]);
+ case 4:
+ return new Ctor(args[0], args[1], args[2], args[3]);
+ case 5:
+ return new Ctor(
+ args[0],
+ args[1],
+ args[2],
+ args[3],
+ args[4],
+ );
+ case 6:
+ return new Ctor(
+ args[0],
+ args[1],
+ args[2],
+ args[3],
+ args[4],
+ args[5],
+ );
+ case 7:
+ return new Ctor(
+ args[0],
+ args[1],
+ args[2],
+ args[3],
+ args[4],
+ args[5],
+ args[6],
+ );
+ }
+ var thisBinding = baseCreate(Ctor.prototype),
+ result = Ctor.apply(thisBinding, args);
+
+ // Mimic the constructor's `return` behavior.
+ // See https://es5.github.io/#x13.2.2 for more details.
+ return isObject(result) ? result : thisBinding;
+ };
+ }
+
+ /**
+ * Creates a function that wraps `func` to enable currying.
+ *
+ * @private
+ * @param {Function} func The function to wrap.
+ * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
+ * @param {number} arity The arity of `func`.
+ * @returns {Function} Returns the new wrapped function.
+ */
+ function createCurry(func, bitmask, arity) {
+ var Ctor = createCtor(func);
+
+ function wrapper() {
+ var length = arguments.length,
+ args = Array(length),
+ index = length,
+ placeholder = getHolder(wrapper);
+
+ while (index--) {
+ args[index] = arguments[index];
+ }
+ var holders =
+ length < 3 &&
+ args[0] !== placeholder &&
+ args[length - 1] !== placeholder
+ ? []
+ : replaceHolders(args, placeholder);
+
+ length -= holders.length;
+ if (length < arity) {
+ return createRecurry(
+ func,
+ bitmask,
+ createHybrid,
+ wrapper.placeholder,
+ undefined$1,
+ args,
+ holders,
+ undefined$1,
+ undefined$1,
+ arity - length,
+ );
+ }
+ var fn =
+ this && this !== root && this instanceof wrapper
+ ? Ctor
+ : func;
+ return apply(fn, this, args);
+ }
+ return wrapper;
+ }
+
+ /**
+ * Creates a `_.find` or `_.findLast` function.
+ *
+ * @private
+ * @param {Function} findIndexFunc The function to find the collection index.
+ * @returns {Function} Returns the new find function.
+ */
+ function createFind(findIndexFunc) {
+ return function(collection, predicate, fromIndex) {
+ var iterable = Object(collection);
+ if (!isArrayLike(collection)) {
+ var iteratee = getIteratee(predicate, 3);
+ collection = keys(collection);
+ predicate = function(key) {
+ return iteratee(iterable[key], key, iterable);
+ };
+ }
+ var index = findIndexFunc(collection, predicate, fromIndex);
+ return index > -1
+ ? iterable[iteratee ? collection[index] : index]
+ : undefined$1;
+ };
+ }
+
+ /**
+ * Creates a `_.flow` or `_.flowRight` function.
+ *
+ * @private
+ * @param {boolean} [fromRight] Specify iterating from right to left.
+ * @returns {Function} Returns the new flow function.
+ */
+ function createFlow(fromRight) {
+ return flatRest(function(funcs) {
+ var length = funcs.length,
+ index = length,
+ prereq = LodashWrapper.prototype.thru;
+
+ if (fromRight) {
+ funcs.reverse();
+ }
+ while (index--) {
+ var func = funcs[index];
+ if (typeof func != 'function') {
+ throw new TypeError(FUNC_ERROR_TEXT);
+ }
+ if (prereq && !wrapper && getFuncName(func) == 'wrapper') {
+ var wrapper = new LodashWrapper([], true);
+ }
+ }
+ index = wrapper ? index : length;
+ while (++index < length) {
+ func = funcs[index];
+
+ var funcName = getFuncName(func),
+ data =
+ funcName == 'wrapper' ? getData(func) : undefined$1;
+
+ if (
+ data &&
+ isLaziable(data[0]) &&
+ data[1] ==
+ (WRAP_ARY_FLAG |
+ WRAP_CURRY_FLAG |
+ WRAP_PARTIAL_FLAG |
+ WRAP_REARG_FLAG) &&
+ !data[4].length &&
+ data[9] == 1
+ ) {
+ wrapper = wrapper[getFuncName(data[0])].apply(
+ wrapper,
+ data[3],
+ );
+ } else {
+ wrapper =
+ func.length == 1 && isLaziable(func)
+ ? wrapper[funcName]()
+ : wrapper.thru(func);
+ }
+ }
+ return function() {
+ var args = arguments,
+ value = args[0];
+
+ if (wrapper && args.length == 1 && isArray(value)) {
+ return wrapper.plant(value).value();
+ }
+ var index = 0,
+ result = length
+ ? funcs[index].apply(this, args)
+ : value;
+
+ while (++index < length) {
+ result = funcs[index].call(this, result);
+ }
+ return result;
+ };
+ });
+ }
+
+ /**
+ * Creates a function that wraps `func` to invoke it with optional `this`
+ * binding of `thisArg`, partial application, and currying.
+ *
+ * @private
+ * @param {Function|string} func The function or method name to wrap.
+ * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
+ * @param {*} [thisArg] The `this` binding of `func`.
+ * @param {Array} [partials] The arguments to prepend to those provided to
+ * the new function.
+ * @param {Array} [holders] The `partials` placeholder indexes.
+ * @param {Array} [partialsRight] The arguments to append to those provided
+ * to the new function.
+ * @param {Array} [holdersRight] The `partialsRight` placeholder indexes.
+ * @param {Array} [argPos] The argument positions of the new function.
+ * @param {number} [ary] The arity cap of `func`.
+ * @param {number} [arity] The arity of `func`.
+ * @returns {Function} Returns the new wrapped function.
+ */
+ function createHybrid(
+ func,
+ bitmask,
+ thisArg,
+ partials,
+ holders,
+ partialsRight,
+ holdersRight,
+ argPos,
+ ary,
+ arity,
+ ) {
+ var isAry = bitmask & WRAP_ARY_FLAG,
+ isBind = bitmask & WRAP_BIND_FLAG,
+ isBindKey = bitmask & WRAP_BIND_KEY_FLAG,
+ isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG),
+ isFlip = bitmask & WRAP_FLIP_FLAG,
+ Ctor = isBindKey ? undefined$1 : createCtor(func);
+
+ function wrapper() {
+ var length = arguments.length,
+ args = Array(length),
+ index = length;
+
+ while (index--) {
+ args[index] = arguments[index];
+ }
+ if (isCurried) {
+ var placeholder = getHolder(wrapper),
+ holdersCount = countHolders(args, placeholder);
+ }
+ if (partials) {
+ args = composeArgs(args, partials, holders, isCurried);
+ }
+ if (partialsRight) {
+ args = composeArgsRight(
+ args,
+ partialsRight,
+ holdersRight,
+ isCurried,
+ );
+ }
+ length -= holdersCount;
+ if (isCurried && length < arity) {
+ var newHolders = replaceHolders(args, placeholder);
+ return createRecurry(
+ func,
+ bitmask,
+ createHybrid,
+ wrapper.placeholder,
+ thisArg,
+ args,
+ newHolders,
+ argPos,
+ ary,
+ arity - length,
+ );
+ }
+ var thisBinding = isBind ? thisArg : this,
+ fn = isBindKey ? thisBinding[func] : func;
+
+ length = args.length;
+ if (argPos) {
+ args = reorder(args, argPos);
+ } else if (isFlip && length > 1) {
+ args.reverse();
+ }
+ if (isAry && ary < length) {
+ args.length = ary;
+ }
+ if (this && this !== root && this instanceof wrapper) {
+ fn = Ctor || createCtor(fn);
+ }
+ return fn.apply(thisBinding, args);
+ }
+ return wrapper;
+ }
+
+ /**
+ * Creates a function like `_.invertBy`.
+ *
+ * @private
+ * @param {Function} setter The function to set accumulator values.
+ * @param {Function} toIteratee The function to resolve iteratees.
+ * @returns {Function} Returns the new inverter function.
+ */
+ function createInverter(setter, toIteratee) {
+ return function(object, iteratee) {
+ return baseInverter(object, setter, toIteratee(iteratee), {});
+ };
+ }
+
+ /**
+ * Creates a function that performs a mathematical operation on two values.
+ *
+ * @private
+ * @param {Function} operator The function to perform the operation.
+ * @param {number} [defaultValue] The value used for `undefined` arguments.
+ * @returns {Function} Returns the new mathematical operation function.
+ */
+ function createMathOperation(operator, defaultValue) {
+ return function(value, other) {
+ var result;
+ if (value === undefined$1 && other === undefined$1) {
+ return defaultValue;
+ }
+ if (value !== undefined$1) {
+ result = value;
+ }
+ if (other !== undefined$1) {
+ if (result === undefined$1) {
+ return other;
+ }
+ if (typeof value == 'string' || typeof other == 'string') {
+ value = baseToString(value);
+ other = baseToString(other);
+ } else {
+ value = baseToNumber(value);
+ other = baseToNumber(other);
+ }
+ result = operator(value, other);
+ }
+ return result;
+ };
+ }
+
+ /**
+ * Creates a function like `_.over`.
+ *
+ * @private
+ * @param {Function} arrayFunc The function to iterate over iteratees.
+ * @returns {Function} Returns the new over function.
+ */
+ function createOver(arrayFunc) {
+ return flatRest(function(iteratees) {
+ iteratees = arrayMap(iteratees, baseUnary(getIteratee()));
+ return baseRest(function(args) {
+ var thisArg = this;
+ return arrayFunc(iteratees, function(iteratee) {
+ return apply(iteratee, thisArg, args);
+ });
+ });
+ });
+ }
+
+ /**
+ * Creates the padding for `string` based on `length`. The `chars` string
+ * is truncated if the number of characters exceeds `length`.
+ *
+ * @private
+ * @param {number} length The padding length.
+ * @param {string} [chars=' '] The string used as padding.
+ * @returns {string} Returns the padding for `string`.
+ */
+ function createPadding(length, chars) {
+ chars = chars === undefined$1 ? ' ' : baseToString(chars);
+
+ var charsLength = chars.length;
+ if (charsLength < 2) {
+ return charsLength ? baseRepeat(chars, length) : chars;
+ }
+ var result = baseRepeat(
+ chars,
+ nativeCeil(length / stringSize(chars)),
+ );
+ return hasUnicode(chars)
+ ? castSlice(stringToArray(result), 0, length).join('')
+ : result.slice(0, length);
+ }
+
+ /**
+ * Creates a function that wraps `func` to invoke it with the `this` binding
+ * of `thisArg` and `partials` prepended to the arguments it receives.
+ *
+ * @private
+ * @param {Function} func The function to wrap.
+ * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
+ * @param {*} thisArg The `this` binding of `func`.
+ * @param {Array} partials The arguments to prepend to those provided to
+ * the new function.
+ * @returns {Function} Returns the new wrapped function.
+ */
+ function createPartial(func, bitmask, thisArg, partials) {
+ var isBind = bitmask & WRAP_BIND_FLAG,
+ Ctor = createCtor(func);
+
+ function wrapper() {
+ var argsIndex = -1,
+ argsLength = arguments.length,
+ leftIndex = -1,
+ leftLength = partials.length,
+ args = Array(leftLength + argsLength),
+ fn =
+ this && this !== root && this instanceof wrapper
+ ? Ctor
+ : func;
+
+ while (++leftIndex < leftLength) {
+ args[leftIndex] = partials[leftIndex];
+ }
+ while (argsLength--) {
+ args[leftIndex++] = arguments[++argsIndex];
+ }
+ return apply(fn, isBind ? thisArg : this, args);
+ }
+ return wrapper;
+ }
+
+ /**
+ * Creates a `_.range` or `_.rangeRight` function.
+ *
+ * @private
+ * @param {boolean} [fromRight] Specify iterating from right to left.
+ * @returns {Function} Returns the new range function.
+ */
+ function createRange(fromRight) {
+ return function(start, end, step) {
+ if (
+ step &&
+ typeof step != 'number' &&
+ isIterateeCall(start, end, step)
+ ) {
+ end = step = undefined$1;
+ }
+ // Ensure the sign of `-0` is preserved.
+ start = toFinite(start);
+ if (end === undefined$1) {
+ end = start;
+ start = 0;
+ } else {
+ end = toFinite(end);
+ }
+ step =
+ step === undefined$1
+ ? start < end
+ ? 1
+ : -1
+ : toFinite(step);
+ return baseRange(start, end, step, fromRight);
+ };
+ }
+
+ /**
+ * Creates a function that performs a relational operation on two values.
+ *
+ * @private
+ * @param {Function} operator The function to perform the operation.
+ * @returns {Function} Returns the new relational operation function.
+ */
+ function createRelationalOperation(operator) {
+ return function(value, other) {
+ if (!(typeof value == 'string' && typeof other == 'string')) {
+ value = toNumber(value);
+ other = toNumber(other);
+ }
+ return operator(value, other);
+ };
+ }
+
+ /**
+ * Creates a function that wraps `func` to continue currying.
+ *
+ * @private
+ * @param {Function} func The function to wrap.
+ * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
+ * @param {Function} wrapFunc The function to create the `func` wrapper.
+ * @param {*} placeholder The placeholder value.
+ * @param {*} [thisArg] The `this` binding of `func`.
+ * @param {Array} [partials] The arguments to prepend to those provided to
+ * the new function.
+ * @param {Array} [holders] The `partials` placeholder indexes.
+ * @param {Array} [argPos] The argument positions of the new function.
+ * @param {number} [ary] The arity cap of `func`.
+ * @param {number} [arity] The arity of `func`.
+ * @returns {Function} Returns the new wrapped function.
+ */
+ function createRecurry(
+ func,
+ bitmask,
+ wrapFunc,
+ placeholder,
+ thisArg,
+ partials,
+ holders,
+ argPos,
+ ary,
+ arity,
+ ) {
+ var isCurry = bitmask & WRAP_CURRY_FLAG,
+ newHolders = isCurry ? holders : undefined$1,
+ newHoldersRight = isCurry ? undefined$1 : holders,
+ newPartials = isCurry ? partials : undefined$1,
+ newPartialsRight = isCurry ? undefined$1 : partials;
+
+ bitmask |= isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG;
+ bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG);
+
+ if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) {
+ bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG);
+ }
+ var newData = [
+ func,
+ bitmask,
+ thisArg,
+ newPartials,
+ newHolders,
+ newPartialsRight,
+ newHoldersRight,
+ argPos,
+ ary,
+ arity,
+ ];
+
+ var result = wrapFunc.apply(undefined$1, newData);
+ if (isLaziable(func)) {
+ setData(result, newData);
+ }
+ result.placeholder = placeholder;
+ return setWrapToString(result, func, bitmask);
+ }
+
+ /**
+ * Creates a function like `_.round`.
+ *
+ * @private
+ * @param {string} methodName The name of the `Math` method to use when rounding.
+ * @returns {Function} Returns the new round function.
+ */
+ function createRound(methodName) {
+ var func = Math[methodName];
+ return function(number, precision) {
+ number = toNumber(number);
+ precision =
+ precision == null
+ ? 0
+ : nativeMin(toInteger(precision), 292);
+ if (precision && nativeIsFinite(number)) {
+ // Shift with exponential notation to avoid floating-point issues.
+ // See [MDN](https://mdn.io/round#Examples) for more details.
+ var pair = (toString(number) + 'e').split('e'),
+ value = func(pair[0] + 'e' + (+pair[1] + precision));
+
+ pair = (toString(value) + 'e').split('e');
+ return +(pair[0] + 'e' + (+pair[1] - precision));
+ }
+ return func(number);
+ };
+ }
+
+ /**
+ * Creates a set object of `values`.
+ *
+ * @private
+ * @param {Array} values The values to add to the set.
+ * @returns {Object} Returns the new set.
+ */
+ var createSet = !(Set && 1 / setToArray(new Set([, -0]))[1] == INFINITY)
+ ? noop
+ : function(values) {
+ return new Set(values);
+ };
+
+ /**
+ * Creates a `_.toPairs` or `_.toPairsIn` function.
+ *
+ * @private
+ * @param {Function} keysFunc The function to get the keys of a given object.
+ * @returns {Function} Returns the new pairs function.
+ */
+ function createToPairs(keysFunc) {
+ return function(object) {
+ var tag = getTag(object);
+ if (tag == mapTag) {
+ return mapToArray(object);
+ }
+ if (tag == setTag) {
+ return setToPairs(object);
+ }
+ return baseToPairs(object, keysFunc(object));
+ };
+ }
+
+ /**
+ * Creates a function that either curries or invokes `func` with optional
+ * `this` binding and partially applied arguments.
+ *
+ * @private
+ * @param {Function|string} func The function or method name to wrap.
+ * @param {number} bitmask The bitmask flags.
+ * 1 - `_.bind`
+ * 2 - `_.bindKey`
+ * 4 - `_.curry` or `_.curryRight` of a bound function
+ * 8 - `_.curry`
+ * 16 - `_.curryRight`
+ * 32 - `_.partial`
+ * 64 - `_.partialRight`
+ * 128 - `_.rearg`
+ * 256 - `_.ary`
+ * 512 - `_.flip`
+ * @param {*} [thisArg] The `this` binding of `func`.
+ * @param {Array} [partials] The arguments to be partially applied.
+ * @param {Array} [holders] The `partials` placeholder indexes.
+ * @param {Array} [argPos] The argument positions of the new function.
+ * @param {number} [ary] The arity cap of `func`.
+ * @param {number} [arity] The arity of `func`.
+ * @returns {Function} Returns the new wrapped function.
+ */
+ function createWrap(
+ func,
+ bitmask,
+ thisArg,
+ partials,
+ holders,
+ argPos,
+ ary,
+ arity,
+ ) {
+ var isBindKey = bitmask & WRAP_BIND_KEY_FLAG;
+ if (!isBindKey && typeof func != 'function') {
+ throw new TypeError(FUNC_ERROR_TEXT);
+ }
+ var length = partials ? partials.length : 0;
+ if (!length) {
+ bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG);
+ partials = holders = undefined$1;
+ }
+ ary = ary === undefined$1 ? ary : nativeMax(toInteger(ary), 0);
+ arity = arity === undefined$1 ? arity : toInteger(arity);
+ length -= holders ? holders.length : 0;
+
+ if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) {
+ var partialsRight = partials,
+ holdersRight = holders;
+
+ partials = holders = undefined$1;
+ }
+ var data = isBindKey ? undefined$1 : getData(func);
+
+ var newData = [
+ func,
+ bitmask,
+ thisArg,
+ partials,
+ holders,
+ partialsRight,
+ holdersRight,
+ argPos,
+ ary,
+ arity,
+ ];
+
+ if (data) {
+ mergeData(newData, data);
+ }
+ func = newData[0];
+ bitmask = newData[1];
+ thisArg = newData[2];
+ partials = newData[3];
+ holders = newData[4];
+ arity = newData[9] =
+ newData[9] === undefined$1
+ ? isBindKey
+ ? 0
+ : func.length
+ : nativeMax(newData[9] - length, 0);
+
+ if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) {
+ bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG);
+ }
+ if (!bitmask || bitmask == WRAP_BIND_FLAG) {
+ var result = createBind(func, bitmask, thisArg);
+ } else if (
+ bitmask == WRAP_CURRY_FLAG ||
+ bitmask == WRAP_CURRY_RIGHT_FLAG
+ ) {
+ result = createCurry(func, bitmask, arity);
+ } else if (
+ (bitmask == WRAP_PARTIAL_FLAG ||
+ bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) &&
+ !holders.length
+ ) {
+ result = createPartial(func, bitmask, thisArg, partials);
+ } else {
+ result = createHybrid.apply(undefined$1, newData);
+ }
+ var setter = data ? baseSetData : setData;
+ return setWrapToString(setter(result, newData), func, bitmask);
+ }
+
+ /**
+ * Used by `_.defaults` to customize its `_.assignIn` use to assign properties
+ * of source objects to the destination object for all destination properties
+ * that resolve to `undefined`.
+ *
+ * @private
+ * @param {*} objValue The destination value.
+ * @param {*} srcValue The source value.
+ * @param {string} key The key of the property to assign.
+ * @param {Object} object The parent object of `objValue`.
+ * @returns {*} Returns the value to assign.
+ */
+ function customDefaultsAssignIn(objValue, srcValue, key, object) {
+ if (
+ objValue === undefined$1 ||
+ (eq(objValue, objectProto[key]) &&
+ !hasOwnProperty.call(object, key))
+ ) {
+ return srcValue;
+ }
+ return objValue;
+ }
+
+ /**
+ * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source
+ * objects into destination objects that are passed thru.
+ *
+ * @private
+ * @param {*} objValue The destination value.
+ * @param {*} srcValue The source value.
+ * @param {string} key The key of the property to merge.
+ * @param {Object} object The parent object of `objValue`.
+ * @param {Object} source The parent object of `srcValue`.
+ * @param {Object} [stack] Tracks traversed source values and their merged
+ * counterparts.
+ * @returns {*} Returns the value to assign.
+ */
+ function customDefaultsMerge(
+ objValue,
+ srcValue,
+ key,
+ object,
+ source,
+ stack,
+ ) {
+ if (isObject(objValue) && isObject(srcValue)) {
+ // Recursively merge objects and arrays (susceptible to call stack limits).
+ stack.set(srcValue, objValue);
+ baseMerge(
+ objValue,
+ srcValue,
+ undefined$1,
+ customDefaultsMerge,
+ stack,
+ );
+ stack['delete'](srcValue);
+ }
+ return objValue;
+ }
+
+ /**
+ * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain
+ * objects.
+ *
+ * @private
+ * @param {*} value The value to inspect.
+ * @param {string} key The key of the property to inspect.
+ * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`.
+ */
+ function customOmitClone(value) {
+ return isPlainObject(value) ? undefined$1 : value;
+ }
+
+ /**
+ * A specialized version of `baseIsEqualDeep` for arrays with support for
+ * partial deep comparisons.
+ *
+ * @private
+ * @param {Array} array The array to compare.
+ * @param {Array} other The other array to compare.
+ * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
+ * @param {Function} customizer The function to customize comparisons.
+ * @param {Function} equalFunc The function to determine equivalents of values.
+ * @param {Object} stack Tracks traversed `array` and `other` objects.
+ * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.
+ */
+ function equalArrays(
+ array,
+ other,
+ bitmask,
+ customizer,
+ equalFunc,
+ stack,
+ ) {
+ var isPartial = bitmask & COMPARE_PARTIAL_FLAG,
+ arrLength = array.length,
+ othLength = other.length;
+
+ if (
+ arrLength != othLength &&
+ !(isPartial && othLength > arrLength)
+ ) {
+ return false;
+ }
+ // Assume cyclic values are equal.
+ var stacked = stack.get(array);
+ if (stacked && stack.get(other)) {
+ return stacked == other;
+ }
+ var index = -1,
+ result = true,
+ seen =
+ bitmask & COMPARE_UNORDERED_FLAG
+ ? new SetCache()
+ : undefined$1;
+
+ stack.set(array, other);
+ stack.set(other, array);
+
+ // Ignore non-index properties.
+ while (++index < arrLength) {
+ var arrValue = array[index],
+ othValue = other[index];
+
+ if (customizer) {
+ var compared = isPartial
+ ? customizer(
+ othValue,
+ arrValue,
+ index,
+ other,
+ array,
+ stack,
+ )
+ : customizer(
+ arrValue,
+ othValue,
+ index,
+ array,
+ other,
+ stack,
+ );
+ }
+ if (compared !== undefined$1) {
+ if (compared) {
+ continue;
+ }
+ result = false;
+ break;
+ }
+ // Recursively compare arrays (susceptible to call stack limits).
+ if (seen) {
+ if (
+ !arraySome(other, function(othValue, othIndex) {
+ if (
+ !cacheHas(seen, othIndex) &&
+ (arrValue === othValue ||
+ equalFunc(
+ arrValue,
+ othValue,
+ bitmask,
+ customizer,
+ stack,
+ ))
+ ) {
+ return seen.push(othIndex);
+ }
+ })
+ ) {
+ result = false;
+ break;
+ }
+ } else if (
+ !(
+ arrValue === othValue ||
+ equalFunc(
+ arrValue,
+ othValue,
+ bitmask,
+ customizer,
+ stack,
+ )
+ )
+ ) {
+ result = false;
+ break;
+ }
+ }
+ stack['delete'](array);
+ stack['delete'](other);
+ return result;
+ }
+
+ /**
+ * A specialized version of `baseIsEqualDeep` for comparing objects of
+ * the same `toStringTag`.
+ *
+ * **Note:** This function only supports comparing values with tags of
+ * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
+ *
+ * @private
+ * @param {Object} object The object to compare.
+ * @param {Object} other The other object to compare.
+ * @param {string} tag The `toStringTag` of the objects to compare.
+ * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
+ * @param {Function} customizer The function to customize comparisons.
+ * @param {Function} equalFunc The function to determine equivalents of values.
+ * @param {Object} stack Tracks traversed `object` and `other` objects.
+ * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
+ */
+ function equalByTag(
+ object,
+ other,
+ tag,
+ bitmask,
+ customizer,
+ equalFunc,
+ stack,
+ ) {
+ switch (tag) {
+ case dataViewTag:
+ if (
+ object.byteLength != other.byteLength ||
+ object.byteOffset != other.byteOffset
+ ) {
+ return false;
+ }
+ object = object.buffer;
+ other = other.buffer;
+
+ case arrayBufferTag:
+ if (
+ object.byteLength != other.byteLength ||
+ !equalFunc(
+ new Uint8Array(object),
+ new Uint8Array(other),
+ )
+ ) {
+ return false;
+ }
+ return true;
+
+ case boolTag:
+ case dateTag:
+ case numberTag:
+ // Coerce booleans to `1` or `0` and dates to milliseconds.
+ // Invalid dates are coerced to `NaN`.
+ return eq(+object, +other);
+
+ case errorTag:
+ return (
+ object.name == other.name &&
+ object.message == other.message
+ );
+
+ case regexpTag:
+ case stringTag:
+ // Coerce regexes to strings and treat strings, primitives and objects,
+ // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring
+ // for more details.
+ return object == other + '';
+
+ case mapTag:
+ var convert = mapToArray;
+
+ case setTag:
+ var isPartial = bitmask & COMPARE_PARTIAL_FLAG;
+ convert || (convert = setToArray);
+
+ if (object.size != other.size && !isPartial) {
+ return false;
+ }
+ // Assume cyclic values are equal.
+ var stacked = stack.get(object);
+ if (stacked) {
+ return stacked == other;
+ }
+ bitmask |= COMPARE_UNORDERED_FLAG;
+
+ // Recursively compare objects (susceptible to call stack limits).
+ stack.set(object, other);
+ var result = equalArrays(
+ convert(object),
+ convert(other),
+ bitmask,
+ customizer,
+ equalFunc,
+ stack,
+ );
+ stack['delete'](object);
+ return result;
+
+ case symbolTag:
+ if (symbolValueOf) {
+ return (
+ symbolValueOf.call(object) ==
+ symbolValueOf.call(other)
+ );
+ }
+ }
+ return false;
+ }
+
+ /**
+ * A specialized version of `baseIsEqualDeep` for objects with support for
+ * partial deep comparisons.
+ *
+ * @private
+ * @param {Object} object The object to compare.
+ * @param {Object} other The other object to compare.
+ * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
+ * @param {Function} customizer The function to customize comparisons.
+ * @param {Function} equalFunc The function to determine equivalents of values.
+ * @param {Object} stack Tracks traversed `object` and `other` objects.
+ * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
+ */
+ function equalObjects(
+ object,
+ other,
+ bitmask,
+ customizer,
+ equalFunc,
+ stack,
+ ) {
+ var isPartial = bitmask & COMPARE_PARTIAL_FLAG,
+ objProps = getAllKeys(object),
+ objLength = objProps.length,
+ othProps = getAllKeys(other),
+ othLength = othProps.length;
+
+ if (objLength != othLength && !isPartial) {
+ return false;
+ }
+ var index = objLength;
+ while (index--) {
+ var key = objProps[index];
+ if (
+ !(isPartial
+ ? key in other
+ : hasOwnProperty.call(other, key))
+ ) {
+ return false;
+ }
+ }
+ // Assume cyclic values are equal.
+ var stacked = stack.get(object);
+ if (stacked && stack.get(other)) {
+ return stacked == other;
+ }
+ var result = true;
+ stack.set(object, other);
+ stack.set(other, object);
+
+ var skipCtor = isPartial;
+ while (++index < objLength) {
+ key = objProps[index];
+ var objValue = object[key],
+ othValue = other[key];
+
+ if (customizer) {
+ var compared = isPartial
+ ? customizer(
+ othValue,
+ objValue,
+ key,
+ other,
+ object,
+ stack,
+ )
+ : customizer(
+ objValue,
+ othValue,
+ key,
+ object,
+ other,
+ stack,
+ );
+ }
+ // Recursively compare objects (susceptible to call stack limits).
+ if (
+ !(compared === undefined$1
+ ? objValue === othValue ||
+ equalFunc(
+ objValue,
+ othValue,
+ bitmask,
+ customizer,
+ stack,
+ )
+ : compared)
+ ) {
+ result = false;
+ break;
+ }
+ skipCtor || (skipCtor = key == 'constructor');
+ }
+ if (result && !skipCtor) {
+ var objCtor = object.constructor,
+ othCtor = other.constructor;
+
+ // Non `Object` object instances with different constructors are not equal.
+ if (
+ objCtor != othCtor &&
+ 'constructor' in object && 'constructor' in other &&
+ !(
+ typeof objCtor == 'function' &&
+ objCtor instanceof objCtor &&
+ typeof othCtor == 'function' &&
+ othCtor instanceof othCtor
+ )
+ ) {
+ result = false;
+ }
+ }
+ stack['delete'](object);
+ stack['delete'](other);
+ return result;
+ }
+
+ /**
+ * A specialized version of `baseRest` which flattens the rest array.
+ *
+ * @private
+ * @param {Function} func The function to apply a rest parameter to.
+ * @returns {Function} Returns the new function.
+ */
+ function flatRest(func) {
+ return setToString(overRest(func, undefined$1, flatten), func + '');
+ }
+
+ /**
+ * Creates an array of own enumerable property names and symbols of `object`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of property names and symbols.
+ */
+ function getAllKeys(object) {
+ return baseGetAllKeys(object, keys, getSymbols);
+ }
+
+ /**
+ * Creates an array of own and inherited enumerable property names and
+ * symbols of `object`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of property names and symbols.
+ */
+ function getAllKeysIn(object) {
+ return baseGetAllKeys(object, keysIn, getSymbolsIn);
+ }
+
+ /**
+ * Gets metadata for `func`.
+ *
+ * @private
+ * @param {Function} func The function to query.
+ * @returns {*} Returns the metadata for `func`.
+ */
+ var getData = !metaMap
+ ? noop
+ : function(func) {
+ return metaMap.get(func);
+ };
+
+ /**
+ * Gets the name of `func`.
+ *
+ * @private
+ * @param {Function} func The function to query.
+ * @returns {string} Returns the function name.
+ */
+ function getFuncName(func) {
+ var result = func.name + '',
+ array = realNames[result],
+ length = hasOwnProperty.call(realNames, result)
+ ? array.length
+ : 0;
+
+ while (length--) {
+ var data = array[length],
+ otherFunc = data.func;
+ if (otherFunc == null || otherFunc == func) {
+ return data.name;
+ }
+ }
+ return result;
+ }
+
+ /**
+ * Gets the argument placeholder value for `func`.
+ *
+ * @private
+ * @param {Function} func The function to inspect.
+ * @returns {*} Returns the placeholder value.
+ */
+ function getHolder(func) {
+ var object = hasOwnProperty.call(lodash, 'placeholder')
+ ? lodash
+ : func;
+ return object.placeholder;
+ }
+
+ /**
+ * Gets the appropriate "iteratee" function. If `_.iteratee` is customized,
+ * this function returns the custom method, otherwise it returns `baseIteratee`.
+ * If arguments are provided, the chosen function is invoked with them and
+ * its result is returned.
+ *
+ * @private
+ * @param {*} [value] The value to convert to an iteratee.
+ * @param {number} [arity] The arity of the created iteratee.
+ * @returns {Function} Returns the chosen function or its result.
+ */
+ function getIteratee() {
+ var result = lodash.iteratee || iteratee;
+ result = result === iteratee ? baseIteratee : result;
+ return arguments.length
+ ? result(arguments[0], arguments[1])
+ : result;
+ }
+
+ /**
+ * Gets the data for `map`.
+ *
+ * @private
+ * @param {Object} map The map to query.
+ * @param {string} key The reference key.
+ * @returns {*} Returns the map data.
+ */
+ function getMapData(map, key) {
+ var data = map.__data__;
+ return isKeyable(key)
+ ? data[typeof key == 'string' ? 'string' : 'hash']
+ : data.map;
+ }
+
+ /**
+ * Gets the property names, values, and compare flags of `object`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the match data of `object`.
+ */
+ function getMatchData(object) {
+ var result = keys(object),
+ length = result.length;
+
+ while (length--) {
+ var key = result[length],
+ value = object[key];
+
+ result[length] = [key, value, isStrictComparable(value)];
+ }
+ return result;
+ }
+
+ /**
+ * Gets the native function at `key` of `object`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @param {string} key The key of the method to get.
+ * @returns {*} Returns the function if it's native, else `undefined`.
+ */
+ function getNative(object, key) {
+ var value = getValue(object, key);
+ return baseIsNative(value) ? value : undefined$1;
+ }
+
+ /**
+ * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.
+ *
+ * @private
+ * @param {*} value The value to query.
+ * @returns {string} Returns the raw `toStringTag`.
+ */
+ function getRawTag(value) {
+ var isOwn = hasOwnProperty.call(value, symToStringTag),
+ tag = value[symToStringTag];
+
+ try {
+ value[symToStringTag] = undefined$1;
+ var unmasked = true;
+ } catch (e) {}
+
+ var result = nativeObjectToString.call(value);
+ if (unmasked) {
+ if (isOwn) {
+ value[symToStringTag] = tag;
+ } else {
+ delete value[symToStringTag];
+ }
+ }
+ return result;
+ }
+
+ /**
+ * Creates an array of the own enumerable symbols of `object`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of symbols.
+ */
+ var getSymbols = !nativeGetSymbols
+ ? stubArray
+ : function(object) {
+ if (object == null) {
+ return [];
+ }
+ object = Object(object);
+ return arrayFilter(nativeGetSymbols(object), function(
+ symbol,
+ ) {
+ return propertyIsEnumerable.call(object, symbol);
+ });
+ };
+
+ /**
+ * Creates an array of the own and inherited enumerable symbols of `object`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of symbols.
+ */
+ var getSymbolsIn = !nativeGetSymbols
+ ? stubArray
+ : function(object) {
+ var result = [];
+ while (object) {
+ arrayPush(result, getSymbols(object));
+ object = getPrototype(object);
+ }
+ return result;
+ };
+
+ /**
+ * Gets the `toStringTag` of `value`.
+ *
+ * @private
+ * @param {*} value The value to query.
+ * @returns {string} Returns the `toStringTag`.
+ */
+ var getTag = baseGetTag;
+
+ // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.
+ if (
+ (DataView &&
+ getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
+ (Map && getTag(new Map()) != mapTag) ||
+ (Promise && getTag(Promise.resolve()) != promiseTag) ||
+ (Set && getTag(new Set()) != setTag) ||
+ (WeakMap && getTag(new WeakMap()) != weakMapTag)
+ ) {
+ getTag = function(value) {
+ var result = baseGetTag(value),
+ Ctor =
+ result == objectTag ? value.constructor : undefined$1,
+ ctorString = Ctor ? toSource(Ctor) : '';
+
+ if (ctorString) {
+ switch (ctorString) {
+ case dataViewCtorString:
+ return dataViewTag;
+ case mapCtorString:
+ return mapTag;
+ case promiseCtorString:
+ return promiseTag;
+ case setCtorString:
+ return setTag;
+ case weakMapCtorString:
+ return weakMapTag;
+ }
+ }
+ return result;
+ };
+ }
+
+ /**
+ * Gets the view, applying any `transforms` to the `start` and `end` positions.
+ *
+ * @private
+ * @param {number} start The start of the view.
+ * @param {number} end The end of the view.
+ * @param {Array} transforms The transformations to apply to the view.
+ * @returns {Object} Returns an object containing the `start` and `end`
+ * positions of the view.
+ */
+ function getView(start, end, transforms) {
+ var index = -1,
+ length = transforms.length;
+
+ while (++index < length) {
+ var data = transforms[index],
+ size = data.size;
+
+ switch (data.type) {
+ case 'drop':
+ start += size;
+ break;
+ case 'dropRight':
+ end -= size;
+ break;
+ case 'take':
+ end = nativeMin(end, start + size);
+ break;
+ case 'takeRight':
+ start = nativeMax(start, end - size);
+ break;
+ }
+ }
+ return {start: start, end: end};
+ }
+
+ /**
+ * Extracts wrapper details from the `source` body comment.
+ *
+ * @private
+ * @param {string} source The source to inspect.
+ * @returns {Array} Returns the wrapper details.
+ */
+ function getWrapDetails(source) {
+ var match = source.match(reWrapDetails);
+ return match ? match[1].split(reSplitDetails) : [];
+ }
+
+ /**
+ * Checks if `path` exists on `object`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @param {Array|string} path The path to check.
+ * @param {Function} hasFunc The function to check properties.
+ * @returns {boolean} Returns `true` if `path` exists, else `false`.
+ */
+ function hasPath(object, path, hasFunc) {
+ path = castPath(path, object);
+
+ var index = -1,
+ length = path.length,
+ result = false;
+
+ while (++index < length) {
+ var key = toKey(path[index]);
+ if (!(result = object != null && hasFunc(object, key))) {
+ break;
+ }
+ object = object[key];
+ }
+ if (result || ++index != length) {
+ return result;
+ }
+ length = object == null ? 0 : object.length;
+ return (
+ !!length &&
+ isLength(length) &&
+ isIndex(key, length) &&
+ (isArray(object) || isArguments(object))
+ );
+ }
+
+ /**
+ * Initializes an array clone.
+ *
+ * @private
+ * @param {Array} array The array to clone.
+ * @returns {Array} Returns the initialized clone.
+ */
+ function initCloneArray(array) {
+ var length = array.length,
+ result = new array.constructor(length);
+
+ // Add properties assigned by `RegExp#exec`.
+ if (
+ length &&
+ typeof array[0] == 'string' &&
+ hasOwnProperty.call(array, 'index')
+ ) {
+ result.index = array.index;
+ result.input = array.input;
+ }
+ return result;
+ }
+
+ /**
+ * Initializes an object clone.
+ *
+ * @private
+ * @param {Object} object The object to clone.
+ * @returns {Object} Returns the initialized clone.
+ */
+ function initCloneObject(object) {
+ return typeof object.constructor == 'function' &&
+ !isPrototype(object)
+ ? baseCreate(getPrototype(object))
+ : {};
+ }
+
+ /**
+ * Initializes an object clone based on its `toStringTag`.
+ *
+ * **Note:** This function only supports cloning values with tags of
+ * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`.
+ *
+ * @private
+ * @param {Object} object The object to clone.
+ * @param {string} tag The `toStringTag` of the object to clone.
+ * @param {boolean} [isDeep] Specify a deep clone.
+ * @returns {Object} Returns the initialized clone.
+ */
+ function initCloneByTag(object, tag, isDeep) {
+ var Ctor = object.constructor;
+ switch (tag) {
+ case arrayBufferTag:
+ return cloneArrayBuffer(object);
+
+ case boolTag:
+ case dateTag:
+ return new Ctor(+object);
+
+ case dataViewTag:
+ return cloneDataView(object, isDeep);
+
+ case float32Tag:
+ case float64Tag:
+ case int8Tag:
+ case int16Tag:
+ case int32Tag:
+ case uint8Tag:
+ case uint8ClampedTag:
+ case uint16Tag:
+ case uint32Tag:
+ return cloneTypedArray(object, isDeep);
+
+ case mapTag:
+ return new Ctor();
+
+ case numberTag:
+ case stringTag:
+ return new Ctor(object);
+
+ case regexpTag:
+ return cloneRegExp(object);
+
+ case setTag:
+ return new Ctor();
+
+ case symbolTag:
+ return cloneSymbol(object);
+ }
+ }
+
+ /**
+ * Inserts wrapper `details` in a comment at the top of the `source` body.
+ *
+ * @private
+ * @param {string} source The source to modify.
+ * @returns {Array} details The details to insert.
+ * @returns {string} Returns the modified source.
+ */
+ function insertWrapDetails(source, details) {
+ var length = details.length;
+ if (!length) {
+ return source;
+ }
+ var lastIndex = length - 1;
+ details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex];
+ details = details.join(length > 2 ? ', ' : ' ');
+ return source.replace(
+ reWrapComment,
+ '{\n/* [wrapped with ' + details + '] */\n',
+ );
+ }
+
+ /**
+ * Checks if `value` is a flattenable `arguments` object or array.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.
+ */
+ function isFlattenable(value) {
+ return (
+ isArray(value) ||
+ isArguments(value) ||
+ !!(spreadableSymbol && value && value[spreadableSymbol])
+ );
+ }
+
+ /**
+ * Checks if `value` is a valid array-like index.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
+ * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
+ */
+ function isIndex(value, length) {
+ var type = typeof value;
+ length = length == null ? MAX_SAFE_INTEGER : length;
+
+ return (
+ !!length &&
+ (type == 'number' ||
+ (type != 'symbol' && reIsUint.test(value))) &&
+ value > -1 && value % 1 == 0 && value < length
+ );
+ }
+
+ /**
+ * Checks if the given arguments are from an iteratee call.
+ *
+ * @private
+ * @param {*} value The potential iteratee value argument.
+ * @param {*} index The potential iteratee index or key argument.
+ * @param {*} object The potential iteratee object argument.
+ * @returns {boolean} Returns `true` if the arguments are from an iteratee call,
+ * else `false`.
+ */
+ function isIterateeCall(value, index, object) {
+ if (!isObject(object)) {
+ return false;
+ }
+ var type = typeof index;
+ if (
+ type == 'number'
+ ? isArrayLike(object) && isIndex(index, object.length)
+ : type == 'string' && index in object
+ ) {
+ return eq(object[index], value);
+ }
+ return false;
+ }
+
+ /**
+ * Checks if `value` is a property name and not a property path.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @param {Object} [object] The object to query keys on.
+ * @returns {boolean} Returns `true` if `value` is a property name, else `false`.
+ */
+ function isKey(value, object) {
+ if (isArray(value)) {
+ return false;
+ }
+ var type = typeof value;
+ if (
+ type == 'number' ||
+ type == 'symbol' ||
+ type == 'boolean' ||
+ value == null ||
+ isSymbol(value)
+ ) {
+ return true;
+ }
+ return (
+ reIsPlainProp.test(value) ||
+ !reIsDeepProp.test(value) ||
+ (object != null && value in Object(object))
+ );
+ }
+
+ /**
+ * Checks if `value` is suitable for use as unique object key.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is suitable, else `false`.
+ */
+ function isKeyable(value) {
+ var type = typeof value;
+ return type == 'string' ||
+ type == 'number' ||
+ type == 'symbol' ||
+ type == 'boolean'
+ ? value !== '__proto__'
+ : value === null;
+ }
+
+ /**
+ * Checks if `func` has a lazy counterpart.
+ *
+ * @private
+ * @param {Function} func The function to check.
+ * @returns {boolean} Returns `true` if `func` has a lazy counterpart,
+ * else `false`.
+ */
+ function isLaziable(func) {
+ var funcName = getFuncName(func),
+ other = lodash[funcName];
+
+ if (
+ typeof other != 'function' ||
+ !(funcName in LazyWrapper.prototype)
+ ) {
+ return false;
+ }
+ if (func === other) {
+ return true;
+ }
+ var data = getData(other);
+ return !!data && func === data[0];
+ }
+
+ /**
+ * Checks if `func` has its source masked.
+ *
+ * @private
+ * @param {Function} func The function to check.
+ * @returns {boolean} Returns `true` if `func` is masked, else `false`.
+ */
+ function isMasked(func) {
+ return !!maskSrcKey && maskSrcKey in func;
+ }
+
+ /**
+ * Checks if `func` is capable of being masked.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `func` is maskable, else `false`.
+ */
+ var isMaskable = coreJsData ? isFunction : stubFalse;
+
+ /**
+ * Checks if `value` is likely a prototype object.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.
+ */
+ function isPrototype(value) {
+ var Ctor = value && value.constructor,
+ proto =
+ (typeof Ctor == 'function' && Ctor.prototype) ||
+ objectProto;
+
+ return value === proto;
+ }
+
+ /**
+ * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` if suitable for strict
+ * equality comparisons, else `false`.
+ */
+ function isStrictComparable(value) {
+ return value === value && !isObject(value);
+ }
+
+ /**
+ * A specialized version of `matchesProperty` for source values suitable
+ * for strict equality comparisons, i.e. `===`.
+ *
+ * @private
+ * @param {string} key The key of the property to get.
+ * @param {*} srcValue The value to match.
+ * @returns {Function} Returns the new spec function.
+ */
+ function matchesStrictComparable(key, srcValue) {
+ return function(object) {
+ if (object == null) {
+ return false;
+ }
+ return (
+ object[key] === srcValue &&
+ (srcValue !== undefined$1 || key in Object(object))
+ );
+ };
+ }
+
+ /**
+ * A specialized version of `_.memoize` which clears the memoized function's
+ * cache when it exceeds `MAX_MEMOIZE_SIZE`.
+ *
+ * @private
+ * @param {Function} func The function to have its output memoized.
+ * @returns {Function} Returns the new memoized function.
+ */
+ function memoizeCapped(func) {
+ var result = memoize(func, function(key) {
+ if (cache.size === MAX_MEMOIZE_SIZE) {
+ cache.clear();
+ }
+ return key;
+ });
+
+ var cache = result.cache;
+ return result;
+ }
+
+ /**
+ * Merges the function metadata of `source` into `data`.
+ *
+ * Merging metadata reduces the number of wrappers used to invoke a function.
+ * This is possible because methods like `_.bind`, `_.curry`, and `_.partial`
+ * may be applied regardless of execution order. Methods like `_.ary` and
+ * `_.rearg` modify function arguments, making the order in which they are
+ * executed important, preventing the merging of metadata. However, we make
+ * an exception for a safe combined case where curried functions have `_.ary`
+ * and or `_.rearg` applied.
+ *
+ * @private
+ * @param {Array} data The destination metadata.
+ * @param {Array} source The source metadata.
+ * @returns {Array} Returns `data`.
+ */
+ function mergeData(data, source) {
+ var bitmask = data[1],
+ srcBitmask = source[1],
+ newBitmask = bitmask | srcBitmask,
+ isCommon =
+ newBitmask <
+ (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG);
+
+ var isCombo =
+ (srcBitmask == WRAP_ARY_FLAG && bitmask == WRAP_CURRY_FLAG) ||
+ (srcBitmask == WRAP_ARY_FLAG &&
+ bitmask == WRAP_REARG_FLAG &&
+ data[7].length <= source[8]) ||
+ (srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG) &&
+ source[7].length <= source[8] &&
+ bitmask == WRAP_CURRY_FLAG);
+
+ // Exit early if metadata can't be merged.
+ if (!(isCommon || isCombo)) {
+ return data;
+ }
+ // Use source `thisArg` if available.
+ if (srcBitmask & WRAP_BIND_FLAG) {
+ data[2] = source[2];
+ // Set when currying a bound function.
+ newBitmask |=
+ bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG;
+ }
+ // Compose partial arguments.
+ var value = source[3];
+ if (value) {
+ var partials = data[3];
+ data[3] = partials
+ ? composeArgs(partials, value, source[4])
+ : value;
+ data[4] = partials
+ ? replaceHolders(data[3], PLACEHOLDER)
+ : source[4];
+ }
+ // Compose partial right arguments.
+ value = source[5];
+ if (value) {
+ partials = data[5];
+ data[5] = partials
+ ? composeArgsRight(partials, value, source[6])
+ : value;
+ data[6] = partials
+ ? replaceHolders(data[5], PLACEHOLDER)
+ : source[6];
+ }
+ // Use source `argPos` if available.
+ value = source[7];
+ if (value) {
+ data[7] = value;
+ }
+ // Use source `ary` if it's smaller.
+ if (srcBitmask & WRAP_ARY_FLAG) {
+ data[8] =
+ data[8] == null ? source[8] : nativeMin(data[8], source[8]);
+ }
+ // Use source `arity` if one is not provided.
+ if (data[9] == null) {
+ data[9] = source[9];
+ }
+ // Use source `func` and merge bitmasks.
+ data[0] = source[0];
+ data[1] = newBitmask;
+
+ return data;
+ }
+
+ /**
+ * This function is like
+ * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
+ * except that it includes inherited enumerable properties.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of property names.
+ */
+ function nativeKeysIn(object) {
+ var result = [];
+ if (object != null) {
+ for (var key in Object(object)) {
+ result.push(key);
+ }
+ }
+ return result;
+ }
+
+ /**
+ * Converts `value` to a string using `Object.prototype.toString`.
+ *
+ * @private
+ * @param {*} value The value to convert.
+ * @returns {string} Returns the converted string.
+ */
+ function objectToString(value) {
+ return nativeObjectToString.call(value);
+ }
+
+ /**
+ * A specialized version of `baseRest` which transforms the rest array.
+ *
+ * @private
+ * @param {Function} func The function to apply a rest parameter to.
+ * @param {number} [start=func.length-1] The start position of the rest parameter.
+ * @param {Function} transform The rest array transform.
+ * @returns {Function} Returns the new function.
+ */
+ function overRest(func, start, transform) {
+ start = nativeMax(
+ start === undefined$1 ? func.length - 1 : start,
+ 0,
+ );
+ return function() {
+ var args = arguments,
+ index = -1,
+ length = nativeMax(args.length - start, 0),
+ array = Array(length);
+
+ while (++index < length) {
+ array[index] = args[start + index];
+ }
+ index = -1;
+ var otherArgs = Array(start + 1);
+ while (++index < start) {
+ otherArgs[index] = args[index];
+ }
+ otherArgs[start] = transform(array);
+ return apply(func, this, otherArgs);
+ };
+ }
+
+ /**
+ * Gets the parent value at `path` of `object`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @param {Array} path The path to get the parent value of.
+ * @returns {*} Returns the parent value.
+ */
+ function parent(object, path) {
+ return path.length < 2
+ ? object
+ : baseGet(object, baseSlice(path, 0, -1));
+ }
+
+ /**
+ * Reorder `array` according to the specified indexes where the element at
+ * the first index is assigned as the first element, the element at
+ * the second index is assigned as the second element, and so on.
+ *
+ * @private
+ * @param {Array} array The array to reorder.
+ * @param {Array} indexes The arranged array indexes.
+ * @returns {Array} Returns `array`.
+ */
+ function reorder(array, indexes) {
+ var arrLength = array.length,
+ length = nativeMin(indexes.length, arrLength),
+ oldArray = copyArray(array);
+
+ while (length--) {
+ var index = indexes[length];
+ array[length] = isIndex(index, arrLength)
+ ? oldArray[index]
+ : undefined$1;
+ }
+ return array;
+ }
+
+ /**
+ * Gets the value at `key`, unless `key` is "__proto__" or "constructor".
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @param {string} key The key of the property to get.
+ * @returns {*} Returns the property value.
+ */
+ function safeGet(object, key) {
+ if (key === 'constructor' && typeof object[key] === 'function') {
+ return;
+ }
+
+ if (key == '__proto__') {
+ return;
+ }
+
+ return object[key];
+ }
+
+ /**
+ * Sets metadata for `func`.
+ *
+ * **Note:** If this function becomes hot, i.e. is invoked a lot in a short
+ * period of time, it will trip its breaker and transition to an identity
+ * function to avoid garbage collection pauses in V8. See
+ * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070)
+ * for more details.
+ *
+ * @private
+ * @param {Function} func The function to associate metadata with.
+ * @param {*} data The metadata.
+ * @returns {Function} Returns `func`.
+ */
+ var setData = shortOut(baseSetData);
+
+ /**
+ * A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout).
+ *
+ * @private
+ * @param {Function} func The function to delay.
+ * @param {number} wait The number of milliseconds to delay invocation.
+ * @returns {number|Object} Returns the timer id or timeout object.
+ */
+ var setTimeout =
+ ctxSetTimeout ||
+ function(func, wait) {
+ return root.setTimeout(func, wait);
+ };
+
+ /**
+ * Sets the `toString` method of `func` to return `string`.
+ *
+ * @private
+ * @param {Function} func The function to modify.
+ * @param {Function} string The `toString` result.
+ * @returns {Function} Returns `func`.
+ */
+ var setToString = shortOut(baseSetToString);
+
+ /**
+ * Sets the `toString` method of `wrapper` to mimic the source of `reference`
+ * with wrapper details in a comment at the top of the source body.
+ *
+ * @private
+ * @param {Function} wrapper The function to modify.
+ * @param {Function} reference The reference function.
+ * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
+ * @returns {Function} Returns `wrapper`.
+ */
+ function setWrapToString(wrapper, reference, bitmask) {
+ var source = reference + '';
+ return setToString(
+ wrapper,
+ insertWrapDetails(
+ source,
+ updateWrapDetails(getWrapDetails(source), bitmask),
+ ),
+ );
+ }
+
+ /**
+ * Creates a function that'll short out and invoke `identity` instead
+ * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`
+ * milliseconds.
+ *
+ * @private
+ * @param {Function} func The function to restrict.
+ * @returns {Function} Returns the new shortable function.
+ */
+ function shortOut(func) {
+ var count = 0,
+ lastCalled = 0;
+
+ return function() {
+ var stamp = nativeNow(),
+ remaining = HOT_SPAN - (stamp - lastCalled);
+
+ lastCalled = stamp;
+ if (remaining > 0) {
+ if (++count >= HOT_COUNT) {
+ return arguments[0];
+ }
+ } else {
+ count = 0;
+ }
+ return func.apply(undefined$1, arguments);
+ };
+ }
+
+ /**
+ * A specialized version of `_.shuffle` which mutates and sets the size of `array`.
+ *
+ * @private
+ * @param {Array} array The array to shuffle.
+ * @param {number} [size=array.length] The size of `array`.
+ * @returns {Array} Returns `array`.
+ */
+ function shuffleSelf(array, size) {
+ var index = -1,
+ length = array.length,
+ lastIndex = length - 1;
+
+ size = size === undefined$1 ? length : size;
+ while (++index < size) {
+ var rand = baseRandom(index, lastIndex),
+ value = array[rand];
+
+ array[rand] = array[index];
+ array[index] = value;
+ }
+ array.length = size;
+ return array;
+ }
+
+ /**
+ * Converts `string` to a property path array.
+ *
+ * @private
+ * @param {string} string The string to convert.
+ * @returns {Array} Returns the property path array.
+ */
+ var stringToPath = memoizeCapped(function(string) {
+ var result = [];
+ if (string.charCodeAt(0) === 46 /* . */) {
+ result.push('');
+ }
+ string.replace(rePropName, function(
+ match,
+ number,
+ quote,
+ subString,
+ ) {
+ result.push(
+ quote
+ ? subString.replace(reEscapeChar, '$1')
+ : number || match,
+ );
+ });
+ return result;
+ });
+
+ /**
+ * Converts `value` to a string key if it's not a string or symbol.
+ *
+ * @private
+ * @param {*} value The value to inspect.
+ * @returns {string|symbol} Returns the key.
+ */
+ function toKey(value) {
+ if (typeof value == 'string' || isSymbol(value)) {
+ return value;
+ }
+ var result = value + '';
+ return result == '0' && 1 / value == -INFINITY ? '-0' : result;
+ }
+
+ /**
+ * Converts `func` to its source code.
+ *
+ * @private
+ * @param {Function} func The function to convert.
+ * @returns {string} Returns the source code.
+ */
+ function toSource(func) {
+ if (func != null) {
+ try {
+ return funcToString.call(func);
+ } catch (e) {}
+ try {
+ return func + '';
+ } catch (e) {}
+ }
+ return '';
+ }
+
+ /**
+ * Updates wrapper `details` based on `bitmask` flags.
+ *
+ * @private
+ * @returns {Array} details The details to modify.
+ * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
+ * @returns {Array} Returns `details`.
+ */
+ function updateWrapDetails(details, bitmask) {
+ arrayEach(wrapFlags, function(pair) {
+ var value = '_.' + pair[0];
+ if (bitmask & pair[1] && !arrayIncludes(details, value)) {
+ details.push(value);
+ }
+ });
+ return details.sort();
+ }
+
+ /**
+ * Creates a clone of `wrapper`.
+ *
+ * @private
+ * @param {Object} wrapper The wrapper to clone.
+ * @returns {Object} Returns the cloned wrapper.
+ */
+ function wrapperClone(wrapper) {
+ if (wrapper instanceof LazyWrapper) {
+ return wrapper.clone();
+ }
+ var result = new LodashWrapper(
+ wrapper.__wrapped__,
+ wrapper.__chain__,
+ );
+ result.__actions__ = copyArray(wrapper.__actions__);
+ result.__index__ = wrapper.__index__;
+ result.__values__ = wrapper.__values__;
+ return result;
+ }
+
+ /*------------------------------------------------------------------------*/
+
+ /**
+ * Creates an array of elements split into groups the length of `size`.
+ * If `array` can't be split evenly, the final chunk will be the remaining
+ * elements.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Array
+ * @param {Array} array The array to process.
+ * @param {number} [size=1] The length of each chunk
+ * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+ * @returns {Array} Returns the new array of chunks.
+ * @example
+ *
+ * _.chunk(['a', 'b', 'c', 'd'], 2);
+ * // => [['a', 'b'], ['c', 'd']]
+ *
+ * _.chunk(['a', 'b', 'c', 'd'], 3);
+ * // => [['a', 'b', 'c'], ['d']]
+ */
+ function chunk(array, size, guard) {
+ if (
+ guard
+ ? isIterateeCall(array, size, guard)
+ : size === undefined$1
+ ) {
+ size = 1;
+ } else {
+ size = nativeMax(toInteger(size), 0);
+ }
+ var length = array == null ? 0 : array.length;
+ if (!length || size < 1) {
+ return [];
+ }
+ var index = 0,
+ resIndex = 0,
+ result = Array(nativeCeil(length / size));
+
+ while (index < length) {
+ result[resIndex++] = baseSlice(array, index, (index += size));
+ }
+ return result;
+ }
+
+ /**
+ * Creates an array with all falsey values removed. The values `false`, `null`,
+ * `0`, `""`, `undefined`, and `NaN` are falsey.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Array
+ * @param {Array} array The array to compact.
+ * @returns {Array} Returns the new array of filtered values.
+ * @example
+ *
+ * _.compact([0, 1, false, 2, '', 3]);
+ * // => [1, 2, 3]
+ */
+ function compact(array) {
+ var index = -1,
+ length = array == null ? 0 : array.length,
+ resIndex = 0,
+ result = [];
+
+ while (++index < length) {
+ var value = array[index];
+ if (value) {
+ result[resIndex++] = value;
+ }
+ }
+ return result;
+ }
+
+ /**
+ * Creates a new array concatenating `array` with any additional arrays
+ * and/or values.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Array
+ * @param {Array} array The array to concatenate.
+ * @param {...*} [values] The values to concatenate.
+ * @returns {Array} Returns the new concatenated array.
+ * @example
+ *
+ * var array = [1];
+ * var other = _.concat(array, 2, [3], [[4]]);
+ *
+ * console.log(other);
+ * // => [1, 2, 3, [4]]
+ *
+ * console.log(array);
+ * // => [1]
+ */
+ function concat() {
+ var length = arguments.length;
+ if (!length) {
+ return [];
+ }
+ var args = Array(length - 1),
+ array = arguments[0],
+ index = length;
+
+ while (index--) {
+ args[index - 1] = arguments[index];
+ }
+ return arrayPush(
+ isArray(array) ? copyArray(array) : [array],
+ baseFlatten(args, 1),
+ );
+ }
+
+ /**
+ * Creates an array of `array` values not included in the other given arrays
+ * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
+ * for equality comparisons. The order and references of result values are
+ * determined by the first array.
+ *
+ * **Note:** Unlike `_.pullAll`, this method returns a new array.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Array
+ * @param {Array} array The array to inspect.
+ * @param {...Array} [values] The values to exclude.
+ * @returns {Array} Returns the new array of filtered values.
+ * @see _.without, _.xor
+ * @example
+ *
+ * _.difference([2, 1], [2, 3]);
+ * // => [1]
+ */
+ var difference = baseRest(function(array, values) {
+ return isArrayLikeObject(array)
+ ? baseDifference(
+ array,
+ baseFlatten(values, 1, isArrayLikeObject, true),
+ )
+ : [];
+ });
+
+ /**
+ * This method is like `_.difference` except that it accepts `iteratee` which
+ * is invoked for each element of `array` and `values` to generate the criterion
+ * by which they're compared. The order and references of result values are
+ * determined by the first array. The iteratee is invoked with one argument:
+ * (value).
+ *
+ * **Note:** Unlike `_.pullAllBy`, this method returns a new array.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Array
+ * @param {Array} array The array to inspect.
+ * @param {...Array} [values] The values to exclude.
+ * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
+ * @returns {Array} Returns the new array of filtered values.
+ * @example
+ *
+ * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor);
+ * // => [1.2]
+ *
+ * // The `_.property` iteratee shorthand.
+ * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x');
+ * // => [{ 'x': 2 }]
+ */
+ var differenceBy = baseRest(function(array, values) {
+ var iteratee = last(values);
+ if (isArrayLikeObject(iteratee)) {
+ iteratee = undefined$1;
+ }
+ return isArrayLikeObject(array)
+ ? baseDifference(
+ array,
+ baseFlatten(values, 1, isArrayLikeObject, true),
+ getIteratee(iteratee, 2),
+ )
+ : [];
+ });
+
+ /**
+ * This method is like `_.difference` except that it accepts `comparator`
+ * which is invoked to compare elements of `array` to `values`. The order and
+ * references of result values are determined by the first array. The comparator
+ * is invoked with two arguments: (arrVal, othVal).
+ *
+ * **Note:** Unlike `_.pullAllWith`, this method returns a new array.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Array
+ * @param {Array} array The array to inspect.
+ * @param {...Array} [values] The values to exclude.
+ * @param {Function} [comparator] The comparator invoked per element.
+ * @returns {Array} Returns the new array of filtered values.
+ * @example
+ *
+ * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
+ *
+ * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual);
+ * // => [{ 'x': 2, 'y': 1 }]
+ */
+ var differenceWith = baseRest(function(array, values) {
+ var comparator = last(values);
+ if (isArrayLikeObject(comparator)) {
+ comparator = undefined$1;
+ }
+ return isArrayLikeObject(array)
+ ? baseDifference(
+ array,
+ baseFlatten(values, 1, isArrayLikeObject, true),
+ undefined$1,
+ comparator,
+ )
+ : [];
+ });
+
+ /**
+ * Creates a slice of `array` with `n` elements dropped from the beginning.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.5.0
+ * @category Array
+ * @param {Array} array The array to query.
+ * @param {number} [n=1] The number of elements to drop.
+ * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+ * @returns {Array} Returns the slice of `array`.
+ * @example
+ *
+ * _.drop([1, 2, 3]);
+ * // => [2, 3]
+ *
+ * _.drop([1, 2, 3], 2);
+ * // => [3]
+ *
+ * _.drop([1, 2, 3], 5);
+ * // => []
+ *
+ * _.drop([1, 2, 3], 0);
+ * // => [1, 2, 3]
+ */
+ function drop(array, n, guard) {
+ var length = array == null ? 0 : array.length;
+ if (!length) {
+ return [];
+ }
+ n = guard || n === undefined$1 ? 1 : toInteger(n);
+ return baseSlice(array, n < 0 ? 0 : n, length);
+ }
+
+ /**
+ * Creates a slice of `array` with `n` elements dropped from the end.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Array
+ * @param {Array} array The array to query.
+ * @param {number} [n=1] The number of elements to drop.
+ * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+ * @returns {Array} Returns the slice of `array`.
+ * @example
+ *
+ * _.dropRight([1, 2, 3]);
+ * // => [1, 2]
+ *
+ * _.dropRight([1, 2, 3], 2);
+ * // => [1]
+ *
+ * _.dropRight([1, 2, 3], 5);
+ * // => []
+ *
+ * _.dropRight([1, 2, 3], 0);
+ * // => [1, 2, 3]
+ */
+ function dropRight(array, n, guard) {
+ var length = array == null ? 0 : array.length;
+ if (!length) {
+ return [];
+ }
+ n = guard || n === undefined$1 ? 1 : toInteger(n);
+ n = length - n;
+ return baseSlice(array, 0, n < 0 ? 0 : n);
+ }
+
+ /**
+ * Creates a slice of `array` excluding elements dropped from the end.
+ * Elements are dropped until `predicate` returns falsey. The predicate is
+ * invoked with three arguments: (value, index, array).
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Array
+ * @param {Array} array The array to query.
+ * @param {Function} [predicate=_.identity] The function invoked per iteration.
+ * @returns {Array} Returns the slice of `array`.
+ * @example
+ *
+ * var users = [
+ * { 'user': 'barney', 'active': true },
+ * { 'user': 'fred', 'active': false },
+ * { 'user': 'pebbles', 'active': false }
+ * ];
+ *
+ * _.dropRightWhile(users, function(o) { return !o.active; });
+ * // => objects for ['barney']
+ *
+ * // The `_.matches` iteratee shorthand.
+ * _.dropRightWhile(users, { 'user': 'pebbles', 'active': false });
+ * // => objects for ['barney', 'fred']
+ *
+ * // The `_.matchesProperty` iteratee shorthand.
+ * _.dropRightWhile(users, ['active', false]);
+ * // => objects for ['barney']
+ *
+ * // The `_.property` iteratee shorthand.
+ * _.dropRightWhile(users, 'active');
+ * // => objects for ['barney', 'fred', 'pebbles']
+ */
+ function dropRightWhile(array, predicate) {
+ return array && array.length
+ ? baseWhile(array, getIteratee(predicate, 3), true, true)
+ : [];
+ }
+
+ /**
+ * Creates a slice of `array` excluding elements dropped from the beginning.
+ * Elements are dropped until `predicate` returns falsey. The predicate is
+ * invoked with three arguments: (value, index, array).
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Array
+ * @param {Array} array The array to query.
+ * @param {Function} [predicate=_.identity] The function invoked per iteration.
+ * @returns {Array} Returns the slice of `array`.
+ * @example
+ *
+ * var users = [
+ * { 'user': 'barney', 'active': false },
+ * { 'user': 'fred', 'active': false },
+ * { 'user': 'pebbles', 'active': true }
+ * ];
+ *
+ * _.dropWhile(users, function(o) { return !o.active; });
+ * // => objects for ['pebbles']
+ *
+ * // The `_.matches` iteratee shorthand.
+ * _.dropWhile(users, { 'user': 'barney', 'active': false });
+ * // => objects for ['fred', 'pebbles']
+ *
+ * // The `_.matchesProperty` iteratee shorthand.
+ * _.dropWhile(users, ['active', false]);
+ * // => objects for ['pebbles']
+ *
+ * // The `_.property` iteratee shorthand.
+ * _.dropWhile(users, 'active');
+ * // => objects for ['barney', 'fred', 'pebbles']
+ */
+ function dropWhile(array, predicate) {
+ return array && array.length
+ ? baseWhile(array, getIteratee(predicate, 3), true)
+ : [];
+ }
+
+ /**
+ * Fills elements of `array` with `value` from `start` up to, but not
+ * including, `end`.
+ *
+ * **Note:** This method mutates `array`.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.2.0
+ * @category Array
+ * @param {Array} array The array to fill.
+ * @param {*} value The value to fill `array` with.
+ * @param {number} [start=0] The start position.
+ * @param {number} [end=array.length] The end position.
+ * @returns {Array} Returns `array`.
+ * @example
+ *
+ * var array = [1, 2, 3];
+ *
+ * _.fill(array, 'a');
+ * console.log(array);
+ * // => ['a', 'a', 'a']
+ *
+ * _.fill(Array(3), 2);
+ * // => [2, 2, 2]
+ *
+ * _.fill([4, 6, 8, 10], '*', 1, 3);
+ * // => [4, '*', '*', 10]
+ */
+ function fill(array, value, start, end) {
+ var length = array == null ? 0 : array.length;
+ if (!length) {
+ return [];
+ }
+ if (
+ start &&
+ typeof start != 'number' &&
+ isIterateeCall(array, value, start)
+ ) {
+ start = 0;
+ end = length;
+ }
+ return baseFill(array, value, start, end);
+ }
+
+ /**
+ * This method is like `_.find` except that it returns the index of the first
+ * element `predicate` returns truthy for instead of the element itself.
+ *
+ * @static
+ * @memberOf _
+ * @since 1.1.0
+ * @category Array
+ * @param {Array} array The array to inspect.
+ * @param {Function} [predicate=_.identity] The function invoked per iteration.
+ * @param {number} [fromIndex=0] The index to search from.
+ * @returns {number} Returns the index of the found element, else `-1`.
+ * @example
+ *
+ * var users = [
+ * { 'user': 'barney', 'active': false },
+ * { 'user': 'fred', 'active': false },
+ * { 'user': 'pebbles', 'active': true }
+ * ];
+ *
+ * _.findIndex(users, function(o) { return o.user == 'barney'; });
+ * // => 0
+ *
+ * // The `_.matches` iteratee shorthand.
+ * _.findIndex(users, { 'user': 'fred', 'active': false });
+ * // => 1
+ *
+ * // The `_.matchesProperty` iteratee shorthand.
+ * _.findIndex(users, ['active', false]);
+ * // => 0
+ *
+ * // The `_.property` iteratee shorthand.
+ * _.findIndex(users, 'active');
+ * // => 2
+ */
+ function findIndex(array, predicate, fromIndex) {
+ var length = array == null ? 0 : array.length;
+ if (!length) {
+ return -1;
+ }
+ var index = fromIndex == null ? 0 : toInteger(fromIndex);
+ if (index < 0) {
+ index = nativeMax(length + index, 0);
+ }
+ return baseFindIndex(array, getIteratee(predicate, 3), index);
+ }
+
+ /**
+ * This method is like `_.findIndex` except that it iterates over elements
+ * of `collection` from right to left.
+ *
+ * @static
+ * @memberOf _
+ * @since 2.0.0
+ * @category Array
+ * @param {Array} array The array to inspect.
+ * @param {Function} [predicate=_.identity] The function invoked per iteration.
+ * @param {number} [fromIndex=array.length-1] The index to search from.
+ * @returns {number} Returns the index of the found element, else `-1`.
+ * @example
+ *
+ * var users = [
+ * { 'user': 'barney', 'active': true },
+ * { 'user': 'fred', 'active': false },
+ * { 'user': 'pebbles', 'active': false }
+ * ];
+ *
+ * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; });
+ * // => 2
+ *
+ * // The `_.matches` iteratee shorthand.
+ * _.findLastIndex(users, { 'user': 'barney', 'active': true });
+ * // => 0
+ *
+ * // The `_.matchesProperty` iteratee shorthand.
+ * _.findLastIndex(users, ['active', false]);
+ * // => 2
+ *
+ * // The `_.property` iteratee shorthand.
+ * _.findLastIndex(users, 'active');
+ * // => 0
+ */
+ function findLastIndex(array, predicate, fromIndex) {
+ var length = array == null ? 0 : array.length;
+ if (!length) {
+ return -1;
+ }
+ var index = length - 1;
+ if (fromIndex !== undefined$1) {
+ index = toInteger(fromIndex);
+ index =
+ fromIndex < 0
+ ? nativeMax(length + index, 0)
+ : nativeMin(index, length - 1);
+ }
+ return baseFindIndex(array, getIteratee(predicate, 3), index, true);
+ }
+
+ /**
+ * Flattens `array` a single level deep.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Array
+ * @param {Array} array The array to flatten.
+ * @returns {Array} Returns the new flattened array.
+ * @example
+ *
+ * _.flatten([1, [2, [3, [4]], 5]]);
+ * // => [1, 2, [3, [4]], 5]
+ */
+ function flatten(array) {
+ var length = array == null ? 0 : array.length;
+ return length ? baseFlatten(array, 1) : [];
+ }
+
+ /**
+ * Recursively flattens `array`.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Array
+ * @param {Array} array The array to flatten.
+ * @returns {Array} Returns the new flattened array.
+ * @example
+ *
+ * _.flattenDeep([1, [2, [3, [4]], 5]]);
+ * // => [1, 2, 3, 4, 5]
+ */
+ function flattenDeep(array) {
+ var length = array == null ? 0 : array.length;
+ return length ? baseFlatten(array, INFINITY) : [];
+ }
+
+ /**
+ * Recursively flatten `array` up to `depth` times.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.4.0
+ * @category Array
+ * @param {Array} array The array to flatten.
+ * @param {number} [depth=1] The maximum recursion depth.
+ * @returns {Array} Returns the new flattened array.
+ * @example
+ *
+ * var array = [1, [2, [3, [4]], 5]];
+ *
+ * _.flattenDepth(array, 1);
+ * // => [1, 2, [3, [4]], 5]
+ *
+ * _.flattenDepth(array, 2);
+ * // => [1, 2, 3, [4], 5]
+ */
+ function flattenDepth(array, depth) {
+ var length = array == null ? 0 : array.length;
+ if (!length) {
+ return [];
+ }
+ depth = depth === undefined$1 ? 1 : toInteger(depth);
+ return baseFlatten(array, depth);
+ }
+
+ /**
+ * The inverse of `_.toPairs`; this method returns an object composed
+ * from key-value `pairs`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Array
+ * @param {Array} pairs The key-value pairs.
+ * @returns {Object} Returns the new object.
+ * @example
+ *
+ * _.fromPairs([['a', 1], ['b', 2]]);
+ * // => { 'a': 1, 'b': 2 }
+ */
+ function fromPairs(pairs) {
+ var index = -1,
+ length = pairs == null ? 0 : pairs.length,
+ result = {};
+
+ while (++index < length) {
+ var pair = pairs[index];
+ result[pair[0]] = pair[1];
+ }
+ return result;
+ }
+
+ /**
+ * Gets the first element of `array`.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @alias first
+ * @category Array
+ * @param {Array} array The array to query.
+ * @returns {*} Returns the first element of `array`.
+ * @example
+ *
+ * _.head([1, 2, 3]);
+ * // => 1
+ *
+ * _.head([]);
+ * // => undefined
+ */
+ function head(array) {
+ return array && array.length ? array[0] : undefined$1;
+ }
+
+ /**
+ * Gets the index at which the first occurrence of `value` is found in `array`
+ * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
+ * for equality comparisons. If `fromIndex` is negative, it's used as the
+ * offset from the end of `array`.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Array
+ * @param {Array} array The array to inspect.
+ * @param {*} value The value to search for.
+ * @param {number} [fromIndex=0] The index to search from.
+ * @returns {number} Returns the index of the matched value, else `-1`.
+ * @example
+ *
+ * _.indexOf([1, 2, 1, 2], 2);
+ * // => 1
+ *
+ * // Search from the `fromIndex`.
+ * _.indexOf([1, 2, 1, 2], 2, 2);
+ * // => 3
+ */
+ function indexOf(array, value, fromIndex) {
+ var length = array == null ? 0 : array.length;
+ if (!length) {
+ return -1;
+ }
+ var index = fromIndex == null ? 0 : toInteger(fromIndex);
+ if (index < 0) {
+ index = nativeMax(length + index, 0);
+ }
+ return baseIndexOf(array, value, index);
+ }
+
+ /**
+ * Gets all but the last element of `array`.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Array
+ * @param {Array} array The array to query.
+ * @returns {Array} Returns the slice of `array`.
+ * @example
+ *
+ * _.initial([1, 2, 3]);
+ * // => [1, 2]
+ */
+ function initial(array) {
+ var length = array == null ? 0 : array.length;
+ return length ? baseSlice(array, 0, -1) : [];
+ }
+
+ /**
+ * Creates an array of unique values that are included in all given arrays
+ * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
+ * for equality comparisons. The order and references of result values are
+ * determined by the first array.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Array
+ * @param {...Array} [arrays] The arrays to inspect.
+ * @returns {Array} Returns the new array of intersecting values.
+ * @example
+ *
+ * _.intersection([2, 1], [2, 3]);
+ * // => [2]
+ */
+ var intersection = baseRest(function(arrays) {
+ var mapped = arrayMap(arrays, castArrayLikeObject);
+ return mapped.length && mapped[0] === arrays[0]
+ ? baseIntersection(mapped)
+ : [];
+ });
+
+ /**
+ * This method is like `_.intersection` except that it accepts `iteratee`
+ * which is invoked for each element of each `arrays` to generate the criterion
+ * by which they're compared. The order and references of result values are
+ * determined by the first array. The iteratee is invoked with one argument:
+ * (value).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Array
+ * @param {...Array} [arrays] The arrays to inspect.
+ * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
+ * @returns {Array} Returns the new array of intersecting values.
+ * @example
+ *
+ * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor);
+ * // => [2.1]
+ *
+ * // The `_.property` iteratee shorthand.
+ * _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
+ * // => [{ 'x': 1 }]
+ */
+ var intersectionBy = baseRest(function(arrays) {
+ var iteratee = last(arrays),
+ mapped = arrayMap(arrays, castArrayLikeObject);
+
+ if (iteratee === last(mapped)) {
+ iteratee = undefined$1;
+ } else {
+ mapped.pop();
+ }
+ return mapped.length && mapped[0] === arrays[0]
+ ? baseIntersection(mapped, getIteratee(iteratee, 2))
+ : [];
+ });
+
+ /**
+ * This method is like `_.intersection` except that it accepts `comparator`
+ * which is invoked to compare elements of `arrays`. The order and references
+ * of result values are determined by the first array. The comparator is
+ * invoked with two arguments: (arrVal, othVal).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Array
+ * @param {...Array} [arrays] The arrays to inspect.
+ * @param {Function} [comparator] The comparator invoked per element.
+ * @returns {Array} Returns the new array of intersecting values.
+ * @example
+ *
+ * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
+ * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
+ *
+ * _.intersectionWith(objects, others, _.isEqual);
+ * // => [{ 'x': 1, 'y': 2 }]
+ */
+ var intersectionWith = baseRest(function(arrays) {
+ var comparator = last(arrays),
+ mapped = arrayMap(arrays, castArrayLikeObject);
+
+ comparator =
+ typeof comparator == 'function' ? comparator : undefined$1;
+ if (comparator) {
+ mapped.pop();
+ }
+ return mapped.length && mapped[0] === arrays[0]
+ ? baseIntersection(mapped, undefined$1, comparator)
+ : [];
+ });
+
+ /**
+ * Converts all elements in `array` into a string separated by `separator`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Array
+ * @param {Array} array The array to convert.
+ * @param {string} [separator=','] The element separator.
+ * @returns {string} Returns the joined string.
+ * @example
+ *
+ * _.join(['a', 'b', 'c'], '~');
+ * // => 'a~b~c'
+ */
+ function join(array, separator) {
+ return array == null ? '' : nativeJoin.call(array, separator);
+ }
+
+ /**
+ * Gets the last element of `array`.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Array
+ * @param {Array} array The array to query.
+ * @returns {*} Returns the last element of `array`.
+ * @example
+ *
+ * _.last([1, 2, 3]);
+ * // => 3
+ */
+ function last(array) {
+ var length = array == null ? 0 : array.length;
+ return length ? array[length - 1] : undefined$1;
+ }
+
+ /**
+ * This method is like `_.indexOf` except that it iterates over elements of
+ * `array` from right to left.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Array
+ * @param {Array} array The array to inspect.
+ * @param {*} value The value to search for.
+ * @param {number} [fromIndex=array.length-1] The index to search from.
+ * @returns {number} Returns the index of the matched value, else `-1`.
+ * @example
+ *
+ * _.lastIndexOf([1, 2, 1, 2], 2);
+ * // => 3
+ *
+ * // Search from the `fromIndex`.
+ * _.lastIndexOf([1, 2, 1, 2], 2, 2);
+ * // => 1
+ */
+ function lastIndexOf(array, value, fromIndex) {
+ var length = array == null ? 0 : array.length;
+ if (!length) {
+ return -1;
+ }
+ var index = length;
+ if (fromIndex !== undefined$1) {
+ index = toInteger(fromIndex);
+ index =
+ index < 0
+ ? nativeMax(length + index, 0)
+ : nativeMin(index, length - 1);
+ }
+ return value === value
+ ? strictLastIndexOf(array, value, index)
+ : baseFindIndex(array, baseIsNaN, index, true);
+ }
+
+ /**
+ * Gets the element at index `n` of `array`. If `n` is negative, the nth
+ * element from the end is returned.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.11.0
+ * @category Array
+ * @param {Array} array The array to query.
+ * @param {number} [n=0] The index of the element to return.
+ * @returns {*} Returns the nth element of `array`.
+ * @example
+ *
+ * var array = ['a', 'b', 'c', 'd'];
+ *
+ * _.nth(array, 1);
+ * // => 'b'
+ *
+ * _.nth(array, -2);
+ * // => 'c';
+ */
+ function nth(array, n) {
+ return array && array.length
+ ? baseNth(array, toInteger(n))
+ : undefined$1;
+ }
+
+ /**
+ * Removes all given values from `array` using
+ * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
+ * for equality comparisons.
+ *
+ * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove`
+ * to remove elements from an array by predicate.
+ *
+ * @static
+ * @memberOf _
+ * @since 2.0.0
+ * @category Array
+ * @param {Array} array The array to modify.
+ * @param {...*} [values] The values to remove.
+ * @returns {Array} Returns `array`.
+ * @example
+ *
+ * var array = ['a', 'b', 'c', 'a', 'b', 'c'];
+ *
+ * _.pull(array, 'a', 'c');
+ * console.log(array);
+ * // => ['b', 'b']
+ */
+ var pull = baseRest(pullAll);
+
+ /**
+ * This method is like `_.pull` except that it accepts an array of values to remove.
+ *
+ * **Note:** Unlike `_.difference`, this method mutates `array`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Array
+ * @param {Array} array The array to modify.
+ * @param {Array} values The values to remove.
+ * @returns {Array} Returns `array`.
+ * @example
+ *
+ * var array = ['a', 'b', 'c', 'a', 'b', 'c'];
+ *
+ * _.pullAll(array, ['a', 'c']);
+ * console.log(array);
+ * // => ['b', 'b']
+ */
+ function pullAll(array, values) {
+ return array && array.length && values && values.length
+ ? basePullAll(array, values)
+ : array;
+ }
+
+ /**
+ * This method is like `_.pullAll` except that it accepts `iteratee` which is
+ * invoked for each element of `array` and `values` to generate the criterion
+ * by which they're compared. The iteratee is invoked with one argument: (value).
+ *
+ * **Note:** Unlike `_.differenceBy`, this method mutates `array`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Array
+ * @param {Array} array The array to modify.
+ * @param {Array} values The values to remove.
+ * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
+ * @returns {Array} Returns `array`.
+ * @example
+ *
+ * var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }];
+ *
+ * _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x');
+ * console.log(array);
+ * // => [{ 'x': 2 }]
+ */
+ function pullAllBy(array, values, iteratee) {
+ return array && array.length && values && values.length
+ ? basePullAll(array, values, getIteratee(iteratee, 2))
+ : array;
+ }
+
+ /**
+ * This method is like `_.pullAll` except that it accepts `comparator` which
+ * is invoked to compare elements of `array` to `values`. The comparator is
+ * invoked with two arguments: (arrVal, othVal).
+ *
+ * **Note:** Unlike `_.differenceWith`, this method mutates `array`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.6.0
+ * @category Array
+ * @param {Array} array The array to modify.
+ * @param {Array} values The values to remove.
+ * @param {Function} [comparator] The comparator invoked per element.
+ * @returns {Array} Returns `array`.
+ * @example
+ *
+ * var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }];
+ *
+ * _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual);
+ * console.log(array);
+ * // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }]
+ */
+ function pullAllWith(array, values, comparator) {
+ return array && array.length && values && values.length
+ ? basePullAll(array, values, undefined$1, comparator)
+ : array;
+ }
+
+ /**
+ * Removes elements from `array` corresponding to `indexes` and returns an
+ * array of removed elements.
+ *
+ * **Note:** Unlike `_.at`, this method mutates `array`.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Array
+ * @param {Array} array The array to modify.
+ * @param {...(number|number[])} [indexes] The indexes of elements to remove.
+ * @returns {Array} Returns the new array of removed elements.
+ * @example
+ *
+ * var array = ['a', 'b', 'c', 'd'];
+ * var pulled = _.pullAt(array, [1, 3]);
+ *
+ * console.log(array);
+ * // => ['a', 'c']
+ *
+ * console.log(pulled);
+ * // => ['b', 'd']
+ */
+ var pullAt = flatRest(function(array, indexes) {
+ var length = array == null ? 0 : array.length,
+ result = baseAt(array, indexes);
+
+ basePullAt(
+ array,
+ arrayMap(indexes, function(index) {
+ return isIndex(index, length) ? +index : index;
+ }).sort(compareAscending),
+ );
+
+ return result;
+ });
+
+ /**
+ * Removes all elements from `array` that `predicate` returns truthy for
+ * and returns an array of the removed elements. The predicate is invoked
+ * with three arguments: (value, index, array).
+ *
+ * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull`
+ * to pull elements from an array by value.
+ *
+ * @static
+ * @memberOf _
+ * @since 2.0.0
+ * @category Array
+ * @param {Array} array The array to modify.
+ * @param {Function} [predicate=_.identity] The function invoked per iteration.
+ * @returns {Array} Returns the new array of removed elements.
+ * @example
+ *
+ * var array = [1, 2, 3, 4];
+ * var evens = _.remove(array, function(n) {
+ * return n % 2 == 0;
+ * });
+ *
+ * console.log(array);
+ * // => [1, 3]
+ *
+ * console.log(evens);
+ * // => [2, 4]
+ */
+ function remove(array, predicate) {
+ var result = [];
+ if (!(array && array.length)) {
+ return result;
+ }
+ var index = -1,
+ indexes = [],
+ length = array.length;
+
+ predicate = getIteratee(predicate, 3);
+ while (++index < length) {
+ var value = array[index];
+ if (predicate(value, index, array)) {
+ result.push(value);
+ indexes.push(index);
+ }
+ }
+ basePullAt(array, indexes);
+ return result;
+ }
+
+ /**
+ * Reverses `array` so that the first element becomes the last, the second
+ * element becomes the second to last, and so on.
+ *
+ * **Note:** This method mutates `array` and is based on
+ * [`Array#reverse`](https://mdn.io/Array/reverse).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Array
+ * @param {Array} array The array to modify.
+ * @returns {Array} Returns `array`.
+ * @example
+ *
+ * var array = [1, 2, 3];
+ *
+ * _.reverse(array);
+ * // => [3, 2, 1]
+ *
+ * console.log(array);
+ * // => [3, 2, 1]
+ */
+ function reverse(array) {
+ return array == null ? array : nativeReverse.call(array);
+ }
+
+ /**
+ * Creates a slice of `array` from `start` up to, but not including, `end`.
+ *
+ * **Note:** This method is used instead of
+ * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are
+ * returned.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Array
+ * @param {Array} array The array to slice.
+ * @param {number} [start=0] The start position.
+ * @param {number} [end=array.length] The end position.
+ * @returns {Array} Returns the slice of `array`.
+ */
+ function slice(array, start, end) {
+ var length = array == null ? 0 : array.length;
+ if (!length) {
+ return [];
+ }
+ if (
+ end &&
+ typeof end != 'number' &&
+ isIterateeCall(array, start, end)
+ ) {
+ start = 0;
+ end = length;
+ } else {
+ start = start == null ? 0 : toInteger(start);
+ end = end === undefined$1 ? length : toInteger(end);
+ }
+ return baseSlice(array, start, end);
+ }
+
+ /**
+ * Uses a binary search to determine the lowest index at which `value`
+ * should be inserted into `array` in order to maintain its sort order.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Array
+ * @param {Array} array The sorted array to inspect.
+ * @param {*} value The value to evaluate.
+ * @returns {number} Returns the index at which `value` should be inserted
+ * into `array`.
+ * @example
+ *
+ * _.sortedIndex([30, 50], 40);
+ * // => 1
+ */
+ function sortedIndex(array, value) {
+ return baseSortedIndex(array, value);
+ }
+
+ /**
+ * This method is like `_.sortedIndex` except that it accepts `iteratee`
+ * which is invoked for `value` and each element of `array` to compute their
+ * sort ranking. The iteratee is invoked with one argument: (value).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Array
+ * @param {Array} array The sorted array to inspect.
+ * @param {*} value The value to evaluate.
+ * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
+ * @returns {number} Returns the index at which `value` should be inserted
+ * into `array`.
+ * @example
+ *
+ * var objects = [{ 'x': 4 }, { 'x': 5 }];
+ *
+ * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
+ * // => 0
+ *
+ * // The `_.property` iteratee shorthand.
+ * _.sortedIndexBy(objects, { 'x': 4 }, 'x');
+ * // => 0
+ */
+ function sortedIndexBy(array, value, iteratee) {
+ return baseSortedIndexBy(array, value, getIteratee(iteratee, 2));
+ }
+
+ /**
+ * This method is like `_.indexOf` except that it performs a binary
+ * search on a sorted `array`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Array
+ * @param {Array} array The array to inspect.
+ * @param {*} value The value to search for.
+ * @returns {number} Returns the index of the matched value, else `-1`.
+ * @example
+ *
+ * _.sortedIndexOf([4, 5, 5, 5, 6], 5);
+ * // => 1
+ */
+ function sortedIndexOf(array, value) {
+ var length = array == null ? 0 : array.length;
+ if (length) {
+ var index = baseSortedIndex(array, value);
+ if (index < length && eq(array[index], value)) {
+ return index;
+ }
+ }
+ return -1;
+ }
+
+ /**
+ * This method is like `_.sortedIndex` except that it returns the highest
+ * index at which `value` should be inserted into `array` in order to
+ * maintain its sort order.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Array
+ * @param {Array} array The sorted array to inspect.
+ * @param {*} value The value to evaluate.
+ * @returns {number} Returns the index at which `value` should be inserted
+ * into `array`.
+ * @example
+ *
+ * _.sortedLastIndex([4, 5, 5, 5, 6], 5);
+ * // => 4
+ */
+ function sortedLastIndex(array, value) {
+ return baseSortedIndex(array, value, true);
+ }
+
+ /**
+ * This method is like `_.sortedLastIndex` except that it accepts `iteratee`
+ * which is invoked for `value` and each element of `array` to compute their
+ * sort ranking. The iteratee is invoked with one argument: (value).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Array
+ * @param {Array} array The sorted array to inspect.
+ * @param {*} value The value to evaluate.
+ * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
+ * @returns {number} Returns the index at which `value` should be inserted
+ * into `array`.
+ * @example
+ *
+ * var objects = [{ 'x': 4 }, { 'x': 5 }];
+ *
+ * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
+ * // => 1
+ *
+ * // The `_.property` iteratee shorthand.
+ * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x');
+ * // => 1
+ */
+ function sortedLastIndexBy(array, value, iteratee) {
+ return baseSortedIndexBy(
+ array,
+ value,
+ getIteratee(iteratee, 2),
+ true,
+ );
+ }
+
+ /**
+ * This method is like `_.lastIndexOf` except that it performs a binary
+ * search on a sorted `array`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Array
+ * @param {Array} array The array to inspect.
+ * @param {*} value The value to search for.
+ * @returns {number} Returns the index of the matched value, else `-1`.
+ * @example
+ *
+ * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5);
+ * // => 3
+ */
+ function sortedLastIndexOf(array, value) {
+ var length = array == null ? 0 : array.length;
+ if (length) {
+ var index = baseSortedIndex(array, value, true) - 1;
+ if (eq(array[index], value)) {
+ return index;
+ }
+ }
+ return -1;
+ }
+
+ /**
+ * This method is like `_.uniq` except that it's designed and optimized
+ * for sorted arrays.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Array
+ * @param {Array} array The array to inspect.
+ * @returns {Array} Returns the new duplicate free array.
+ * @example
+ *
+ * _.sortedUniq([1, 1, 2]);
+ * // => [1, 2]
+ */
+ function sortedUniq(array) {
+ return array && array.length ? baseSortedUniq(array) : [];
+ }
+
+ /**
+ * This method is like `_.uniqBy` except that it's designed and optimized
+ * for sorted arrays.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Array
+ * @param {Array} array The array to inspect.
+ * @param {Function} [iteratee] The iteratee invoked per element.
+ * @returns {Array} Returns the new duplicate free array.
+ * @example
+ *
+ * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor);
+ * // => [1.1, 2.3]
+ */
+ function sortedUniqBy(array, iteratee) {
+ return array && array.length
+ ? baseSortedUniq(array, getIteratee(iteratee, 2))
+ : [];
+ }
+
+ /**
+ * Gets all but the first element of `array`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Array
+ * @param {Array} array The array to query.
+ * @returns {Array} Returns the slice of `array`.
+ * @example
+ *
+ * _.tail([1, 2, 3]);
+ * // => [2, 3]
+ */
+ function tail(array) {
+ var length = array == null ? 0 : array.length;
+ return length ? baseSlice(array, 1, length) : [];
+ }
+
+ /**
+ * Creates a slice of `array` with `n` elements taken from the beginning.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Array
+ * @param {Array} array The array to query.
+ * @param {number} [n=1] The number of elements to take.
+ * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+ * @returns {Array} Returns the slice of `array`.
+ * @example
+ *
+ * _.take([1, 2, 3]);
+ * // => [1]
+ *
+ * _.take([1, 2, 3], 2);
+ * // => [1, 2]
+ *
+ * _.take([1, 2, 3], 5);
+ * // => [1, 2, 3]
+ *
+ * _.take([1, 2, 3], 0);
+ * // => []
+ */
+ function take(array, n, guard) {
+ if (!(array && array.length)) {
+ return [];
+ }
+ n = guard || n === undefined$1 ? 1 : toInteger(n);
+ return baseSlice(array, 0, n < 0 ? 0 : n);
+ }
+
+ /**
+ * Creates a slice of `array` with `n` elements taken from the end.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Array
+ * @param {Array} array The array to query.
+ * @param {number} [n=1] The number of elements to take.
+ * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+ * @returns {Array} Returns the slice of `array`.
+ * @example
+ *
+ * _.takeRight([1, 2, 3]);
+ * // => [3]
+ *
+ * _.takeRight([1, 2, 3], 2);
+ * // => [2, 3]
+ *
+ * _.takeRight([1, 2, 3], 5);
+ * // => [1, 2, 3]
+ *
+ * _.takeRight([1, 2, 3], 0);
+ * // => []
+ */
+ function takeRight(array, n, guard) {
+ var length = array == null ? 0 : array.length;
+ if (!length) {
+ return [];
+ }
+ n = guard || n === undefined$1 ? 1 : toInteger(n);
+ n = length - n;
+ return baseSlice(array, n < 0 ? 0 : n, length);
+ }
+
+ /**
+ * Creates a slice of `array` with elements taken from the end. Elements are
+ * taken until `predicate` returns falsey. The predicate is invoked with
+ * three arguments: (value, index, array).
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Array
+ * @param {Array} array The array to query.
+ * @param {Function} [predicate=_.identity] The function invoked per iteration.
+ * @returns {Array} Returns the slice of `array`.
+ * @example
+ *
+ * var users = [
+ * { 'user': 'barney', 'active': true },
+ * { 'user': 'fred', 'active': false },
+ * { 'user': 'pebbles', 'active': false }
+ * ];
+ *
+ * _.takeRightWhile(users, function(o) { return !o.active; });
+ * // => objects for ['fred', 'pebbles']
+ *
+ * // The `_.matches` iteratee shorthand.
+ * _.takeRightWhile(users, { 'user': 'pebbles', 'active': false });
+ * // => objects for ['pebbles']
+ *
+ * // The `_.matchesProperty` iteratee shorthand.
+ * _.takeRightWhile(users, ['active', false]);
+ * // => objects for ['fred', 'pebbles']
+ *
+ * // The `_.property` iteratee shorthand.
+ * _.takeRightWhile(users, 'active');
+ * // => []
+ */
+ function takeRightWhile(array, predicate) {
+ return array && array.length
+ ? baseWhile(array, getIteratee(predicate, 3), false, true)
+ : [];
+ }
+
+ /**
+ * Creates a slice of `array` with elements taken from the beginning. Elements
+ * are taken until `predicate` returns falsey. The predicate is invoked with
+ * three arguments: (value, index, array).
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Array
+ * @param {Array} array The array to query.
+ * @param {Function} [predicate=_.identity] The function invoked per iteration.
+ * @returns {Array} Returns the slice of `array`.
+ * @example
+ *
+ * var users = [
+ * { 'user': 'barney', 'active': false },
+ * { 'user': 'fred', 'active': false },
+ * { 'user': 'pebbles', 'active': true }
+ * ];
+ *
+ * _.takeWhile(users, function(o) { return !o.active; });
+ * // => objects for ['barney', 'fred']
+ *
+ * // The `_.matches` iteratee shorthand.
+ * _.takeWhile(users, { 'user': 'barney', 'active': false });
+ * // => objects for ['barney']
+ *
+ * // The `_.matchesProperty` iteratee shorthand.
+ * _.takeWhile(users, ['active', false]);
+ * // => objects for ['barney', 'fred']
+ *
+ * // The `_.property` iteratee shorthand.
+ * _.takeWhile(users, 'active');
+ * // => []
+ */
+ function takeWhile(array, predicate) {
+ return array && array.length
+ ? baseWhile(array, getIteratee(predicate, 3))
+ : [];
+ }
+
+ /**
+ * Creates an array of unique values, in order, from all given arrays using
+ * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
+ * for equality comparisons.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Array
+ * @param {...Array} [arrays] The arrays to inspect.
+ * @returns {Array} Returns the new array of combined values.
+ * @example
+ *
+ * _.union([2], [1, 2]);
+ * // => [2, 1]
+ */
+ var union = baseRest(function(arrays) {
+ return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true));
+ });
+
+ /**
+ * This method is like `_.union` except that it accepts `iteratee` which is
+ * invoked for each element of each `arrays` to generate the criterion by
+ * which uniqueness is computed. Result values are chosen from the first
+ * array in which the value occurs. The iteratee is invoked with one argument:
+ * (value).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Array
+ * @param {...Array} [arrays] The arrays to inspect.
+ * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
+ * @returns {Array} Returns the new array of combined values.
+ * @example
+ *
+ * _.unionBy([2.1], [1.2, 2.3], Math.floor);
+ * // => [2.1, 1.2]
+ *
+ * // The `_.property` iteratee shorthand.
+ * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
+ * // => [{ 'x': 1 }, { 'x': 2 }]
+ */
+ var unionBy = baseRest(function(arrays) {
+ var iteratee = last(arrays);
+ if (isArrayLikeObject(iteratee)) {
+ iteratee = undefined$1;
+ }
+ return baseUniq(
+ baseFlatten(arrays, 1, isArrayLikeObject, true),
+ getIteratee(iteratee, 2),
+ );
+ });
+
+ /**
+ * This method is like `_.union` except that it accepts `comparator` which
+ * is invoked to compare elements of `arrays`. Result values are chosen from
+ * the first array in which the value occurs. The comparator is invoked
+ * with two arguments: (arrVal, othVal).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Array
+ * @param {...Array} [arrays] The arrays to inspect.
+ * @param {Function} [comparator] The comparator invoked per element.
+ * @returns {Array} Returns the new array of combined values.
+ * @example
+ *
+ * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
+ * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
+ *
+ * _.unionWith(objects, others, _.isEqual);
+ * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]
+ */
+ var unionWith = baseRest(function(arrays) {
+ var comparator = last(arrays);
+ comparator =
+ typeof comparator == 'function' ? comparator : undefined$1;
+ return baseUniq(
+ baseFlatten(arrays, 1, isArrayLikeObject, true),
+ undefined$1,
+ comparator,
+ );
+ });
+
+ /**
+ * Creates a duplicate-free version of an array, using
+ * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
+ * for equality comparisons, in which only the first occurrence of each element
+ * is kept. The order of result values is determined by the order they occur
+ * in the array.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Array
+ * @param {Array} array The array to inspect.
+ * @returns {Array} Returns the new duplicate free array.
+ * @example
+ *
+ * _.uniq([2, 1, 2]);
+ * // => [2, 1]
+ */
+ function uniq(array) {
+ return array && array.length ? baseUniq(array) : [];
+ }
+
+ /**
+ * This method is like `_.uniq` except that it accepts `iteratee` which is
+ * invoked for each element in `array` to generate the criterion by which
+ * uniqueness is computed. The order of result values is determined by the
+ * order they occur in the array. The iteratee is invoked with one argument:
+ * (value).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Array
+ * @param {Array} array The array to inspect.
+ * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
+ * @returns {Array} Returns the new duplicate free array.
+ * @example
+ *
+ * _.uniqBy([2.1, 1.2, 2.3], Math.floor);
+ * // => [2.1, 1.2]
+ *
+ * // The `_.property` iteratee shorthand.
+ * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');
+ * // => [{ 'x': 1 }, { 'x': 2 }]
+ */
+ function uniqBy(array, iteratee) {
+ return array && array.length
+ ? baseUniq(array, getIteratee(iteratee, 2))
+ : [];
+ }
+
+ /**
+ * This method is like `_.uniq` except that it accepts `comparator` which
+ * is invoked to compare elements of `array`. The order of result values is
+ * determined by the order they occur in the array.The comparator is invoked
+ * with two arguments: (arrVal, othVal).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Array
+ * @param {Array} array The array to inspect.
+ * @param {Function} [comparator] The comparator invoked per element.
+ * @returns {Array} Returns the new duplicate free array.
+ * @example
+ *
+ * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }];
+ *
+ * _.uniqWith(objects, _.isEqual);
+ * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]
+ */
+ function uniqWith(array, comparator) {
+ comparator =
+ typeof comparator == 'function' ? comparator : undefined$1;
+ return array && array.length
+ ? baseUniq(array, undefined$1, comparator)
+ : [];
+ }
+
+ /**
+ * This method is like `_.zip` except that it accepts an array of grouped
+ * elements and creates an array regrouping the elements to their pre-zip
+ * configuration.
+ *
+ * @static
+ * @memberOf _
+ * @since 1.2.0
+ * @category Array
+ * @param {Array} array The array of grouped elements to process.
+ * @returns {Array} Returns the new array of regrouped elements.
+ * @example
+ *
+ * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]);
+ * // => [['a', 1, true], ['b', 2, false]]
+ *
+ * _.unzip(zipped);
+ * // => [['a', 'b'], [1, 2], [true, false]]
+ */
+ function unzip(array) {
+ if (!(array && array.length)) {
+ return [];
+ }
+ var length = 0;
+ array = arrayFilter(array, function(group) {
+ if (isArrayLikeObject(group)) {
+ length = nativeMax(group.length, length);
+ return true;
+ }
+ });
+ return baseTimes(length, function(index) {
+ return arrayMap(array, baseProperty(index));
+ });
+ }
+
+ /**
+ * This method is like `_.unzip` except that it accepts `iteratee` to specify
+ * how regrouped values should be combined. The iteratee is invoked with the
+ * elements of each group: (...group).
+ *
+ * @static
+ * @memberOf _
+ * @since 3.8.0
+ * @category Array
+ * @param {Array} array The array of grouped elements to process.
+ * @param {Function} [iteratee=_.identity] The function to combine
+ * regrouped values.
+ * @returns {Array} Returns the new array of regrouped elements.
+ * @example
+ *
+ * var zipped = _.zip([1, 2], [10, 20], [100, 200]);
+ * // => [[1, 10, 100], [2, 20, 200]]
+ *
+ * _.unzipWith(zipped, _.add);
+ * // => [3, 30, 300]
+ */
+ function unzipWith(array, iteratee) {
+ if (!(array && array.length)) {
+ return [];
+ }
+ var result = unzip(array);
+ if (iteratee == null) {
+ return result;
+ }
+ return arrayMap(result, function(group) {
+ return apply(iteratee, undefined$1, group);
+ });
+ }
+
+ /**
+ * Creates an array excluding all given values using
+ * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
+ * for equality comparisons.
+ *
+ * **Note:** Unlike `_.pull`, this method returns a new array.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Array
+ * @param {Array} array The array to inspect.
+ * @param {...*} [values] The values to exclude.
+ * @returns {Array} Returns the new array of filtered values.
+ * @see _.difference, _.xor
+ * @example
+ *
+ * _.without([2, 1, 2, 3], 1, 2);
+ * // => [3]
+ */
+ var without = baseRest(function(array, values) {
+ return isArrayLikeObject(array)
+ ? baseDifference(array, values)
+ : [];
+ });
+
+ /**
+ * Creates an array of unique values that is the
+ * [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference)
+ * of the given arrays. The order of result values is determined by the order
+ * they occur in the arrays.
+ *
+ * @static
+ * @memberOf _
+ * @since 2.4.0
+ * @category Array
+ * @param {...Array} [arrays] The arrays to inspect.
+ * @returns {Array} Returns the new array of filtered values.
+ * @see _.difference, _.without
+ * @example
+ *
+ * _.xor([2, 1], [2, 3]);
+ * // => [1, 3]
+ */
+ var xor = baseRest(function(arrays) {
+ return baseXor(arrayFilter(arrays, isArrayLikeObject));
+ });
+
+ /**
+ * This method is like `_.xor` except that it accepts `iteratee` which is
+ * invoked for each element of each `arrays` to generate the criterion by
+ * which by which they're compared. The order of result values is determined
+ * by the order they occur in the arrays. The iteratee is invoked with one
+ * argument: (value).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Array
+ * @param {...Array} [arrays] The arrays to inspect.
+ * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
+ * @returns {Array} Returns the new array of filtered values.
+ * @example
+ *
+ * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor);
+ * // => [1.2, 3.4]
+ *
+ * // The `_.property` iteratee shorthand.
+ * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
+ * // => [{ 'x': 2 }]
+ */
+ var xorBy = baseRest(function(arrays) {
+ var iteratee = last(arrays);
+ if (isArrayLikeObject(iteratee)) {
+ iteratee = undefined$1;
+ }
+ return baseXor(
+ arrayFilter(arrays, isArrayLikeObject),
+ getIteratee(iteratee, 2),
+ );
+ });
+
+ /**
+ * This method is like `_.xor` except that it accepts `comparator` which is
+ * invoked to compare elements of `arrays`. The order of result values is
+ * determined by the order they occur in the arrays. The comparator is invoked
+ * with two arguments: (arrVal, othVal).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Array
+ * @param {...Array} [arrays] The arrays to inspect.
+ * @param {Function} [comparator] The comparator invoked per element.
+ * @returns {Array} Returns the new array of filtered values.
+ * @example
+ *
+ * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
+ * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
+ *
+ * _.xorWith(objects, others, _.isEqual);
+ * // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]
+ */
+ var xorWith = baseRest(function(arrays) {
+ var comparator = last(arrays);
+ comparator =
+ typeof comparator == 'function' ? comparator : undefined$1;
+ return baseXor(
+ arrayFilter(arrays, isArrayLikeObject),
+ undefined$1,
+ comparator,
+ );
+ });
+
+ /**
+ * Creates an array of grouped elements, the first of which contains the
+ * first elements of the given arrays, the second of which contains the
+ * second elements of the given arrays, and so on.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Array
+ * @param {...Array} [arrays] The arrays to process.
+ * @returns {Array} Returns the new array of grouped elements.
+ * @example
+ *
+ * _.zip(['a', 'b'], [1, 2], [true, false]);
+ * // => [['a', 1, true], ['b', 2, false]]
+ */
+ var zip = baseRest(unzip);
+
+ /**
+ * This method is like `_.fromPairs` except that it accepts two arrays,
+ * one of property identifiers and one of corresponding values.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.4.0
+ * @category Array
+ * @param {Array} [props=[]] The property identifiers.
+ * @param {Array} [values=[]] The property values.
+ * @returns {Object} Returns the new object.
+ * @example
+ *
+ * _.zipObject(['a', 'b'], [1, 2]);
+ * // => { 'a': 1, 'b': 2 }
+ */
+ function zipObject(props, values) {
+ return baseZipObject(props || [], values || [], assignValue);
+ }
+
+ /**
+ * This method is like `_.zipObject` except that it supports property paths.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.1.0
+ * @category Array
+ * @param {Array} [props=[]] The property identifiers.
+ * @param {Array} [values=[]] The property values.
+ * @returns {Object} Returns the new object.
+ * @example
+ *
+ * _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]);
+ * // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } }
+ */
+ function zipObjectDeep(props, values) {
+ return baseZipObject(props || [], values || [], baseSet);
+ }
+
+ /**
+ * This method is like `_.zip` except that it accepts `iteratee` to specify
+ * how grouped values should be combined. The iteratee is invoked with the
+ * elements of each group: (...group).
+ *
+ * @static
+ * @memberOf _
+ * @since 3.8.0
+ * @category Array
+ * @param {...Array} [arrays] The arrays to process.
+ * @param {Function} [iteratee=_.identity] The function to combine
+ * grouped values.
+ * @returns {Array} Returns the new array of grouped elements.
+ * @example
+ *
+ * _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) {
+ * return a + b + c;
+ * });
+ * // => [111, 222]
+ */
+ var zipWith = baseRest(function(arrays) {
+ var length = arrays.length,
+ iteratee = length > 1 ? arrays[length - 1] : undefined$1;
+
+ iteratee =
+ typeof iteratee == 'function'
+ ? (arrays.pop(), iteratee)
+ : undefined$1;
+ return unzipWith(arrays, iteratee);
+ });
+
+ /*------------------------------------------------------------------------*/
+
+ /**
+ * Creates a `lodash` wrapper instance that wraps `value` with explicit method
+ * chain sequences enabled. The result of such sequences must be unwrapped
+ * with `_#value`.
+ *
+ * @static
+ * @memberOf _
+ * @since 1.3.0
+ * @category Seq
+ * @param {*} value The value to wrap.
+ * @returns {Object} Returns the new `lodash` wrapper instance.
+ * @example
+ *
+ * var users = [
+ * { 'user': 'barney', 'age': 36 },
+ * { 'user': 'fred', 'age': 40 },
+ * { 'user': 'pebbles', 'age': 1 }
+ * ];
+ *
+ * var youngest = _
+ * .chain(users)
+ * .sortBy('age')
+ * .map(function(o) {
+ * return o.user + ' is ' + o.age;
+ * })
+ * .head()
+ * .value();
+ * // => 'pebbles is 1'
+ */
+ function chain(value) {
+ var result = lodash(value);
+ result.__chain__ = true;
+ return result;
+ }
+
+ /**
+ * This method invokes `interceptor` and returns `value`. The interceptor
+ * is invoked with one argument; (value). The purpose of this method is to
+ * "tap into" a method chain sequence in order to modify intermediate results.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Seq
+ * @param {*} value The value to provide to `interceptor`.
+ * @param {Function} interceptor The function to invoke.
+ * @returns {*} Returns `value`.
+ * @example
+ *
+ * _([1, 2, 3])
+ * .tap(function(array) {
+ * // Mutate input array.
+ * array.pop();
+ * })
+ * .reverse()
+ * .value();
+ * // => [2, 1]
+ */
+ function tap(value, interceptor) {
+ interceptor(value);
+ return value;
+ }
+
+ /**
+ * This method is like `_.tap` except that it returns the result of `interceptor`.
+ * The purpose of this method is to "pass thru" values replacing intermediate
+ * results in a method chain sequence.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Seq
+ * @param {*} value The value to provide to `interceptor`.
+ * @param {Function} interceptor The function to invoke.
+ * @returns {*} Returns the result of `interceptor`.
+ * @example
+ *
+ * _(' abc ')
+ * .chain()
+ * .trim()
+ * .thru(function(value) {
+ * return [value];
+ * })
+ * .value();
+ * // => ['abc']
+ */
+ function thru(value, interceptor) {
+ return interceptor(value);
+ }
+
+ /**
+ * This method is the wrapper version of `_.at`.
+ *
+ * @name at
+ * @memberOf _
+ * @since 1.0.0
+ * @category Seq
+ * @param {...(string|string[])} [paths] The property paths to pick.
+ * @returns {Object} Returns the new `lodash` wrapper instance.
+ * @example
+ *
+ * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };
+ *
+ * _(object).at(['a[0].b.c', 'a[1]']).value();
+ * // => [3, 4]
+ */
+ var wrapperAt = flatRest(function(paths) {
+ var length = paths.length,
+ start = length ? paths[0] : 0,
+ value = this.__wrapped__,
+ interceptor = function(object) {
+ return baseAt(object, paths);
+ };
+
+ if (
+ length > 1 ||
+ this.__actions__.length ||
+ !(value instanceof LazyWrapper) ||
+ !isIndex(start)
+ ) {
+ return this.thru(interceptor);
+ }
+ value = value.slice(start, +start + (length ? 1 : 0));
+ value.__actions__.push({
+ func: thru,
+ args: [interceptor],
+ thisArg: undefined$1,
+ });
+ return new LodashWrapper(value, this.__chain__).thru(function(
+ array,
+ ) {
+ if (length && !array.length) {
+ array.push(undefined$1);
+ }
+ return array;
+ });
+ });
+
+ /**
+ * Creates a `lodash` wrapper instance with explicit method chain sequences enabled.
+ *
+ * @name chain
+ * @memberOf _
+ * @since 0.1.0
+ * @category Seq
+ * @returns {Object} Returns the new `lodash` wrapper instance.
+ * @example
+ *
+ * var users = [
+ * { 'user': 'barney', 'age': 36 },
+ * { 'user': 'fred', 'age': 40 }
+ * ];
+ *
+ * // A sequence without explicit chaining.
+ * _(users).head();
+ * // => { 'user': 'barney', 'age': 36 }
+ *
+ * // A sequence with explicit chaining.
+ * _(users)
+ * .chain()
+ * .head()
+ * .pick('user')
+ * .value();
+ * // => { 'user': 'barney' }
+ */
+ function wrapperChain() {
+ return chain(this);
+ }
+
+ /**
+ * Executes the chain sequence and returns the wrapped result.
+ *
+ * @name commit
+ * @memberOf _
+ * @since 3.2.0
+ * @category Seq
+ * @returns {Object} Returns the new `lodash` wrapper instance.
+ * @example
+ *
+ * var array = [1, 2];
+ * var wrapped = _(array).push(3);
+ *
+ * console.log(array);
+ * // => [1, 2]
+ *
+ * wrapped = wrapped.commit();
+ * console.log(array);
+ * // => [1, 2, 3]
+ *
+ * wrapped.last();
+ * // => 3
+ *
+ * console.log(array);
+ * // => [1, 2, 3]
+ */
+ function wrapperCommit() {
+ return new LodashWrapper(this.value(), this.__chain__);
+ }
+
+ /**
+ * Gets the next value on a wrapped object following the
+ * [iterator protocol](https://mdn.io/iteration_protocols#iterator).
+ *
+ * @name next
+ * @memberOf _
+ * @since 4.0.0
+ * @category Seq
+ * @returns {Object} Returns the next iterator value.
+ * @example
+ *
+ * var wrapped = _([1, 2]);
+ *
+ * wrapped.next();
+ * // => { 'done': false, 'value': 1 }
+ *
+ * wrapped.next();
+ * // => { 'done': false, 'value': 2 }
+ *
+ * wrapped.next();
+ * // => { 'done': true, 'value': undefined }
+ */
+ function wrapperNext() {
+ if (this.__values__ === undefined$1) {
+ this.__values__ = toArray(this.value());
+ }
+ var done = this.__index__ >= this.__values__.length,
+ value = done ? undefined$1 : this.__values__[this.__index__++];
+
+ return {done: done, value: value};
+ }
+
+ /**
+ * Enables the wrapper to be iterable.
+ *
+ * @name Symbol.iterator
+ * @memberOf _
+ * @since 4.0.0
+ * @category Seq
+ * @returns {Object} Returns the wrapper object.
+ * @example
+ *
+ * var wrapped = _([1, 2]);
+ *
+ * wrapped[Symbol.iterator]() === wrapped;
+ * // => true
+ *
+ * Array.from(wrapped);
+ * // => [1, 2]
+ */
+ function wrapperToIterator() {
+ return this;
+ }
+
+ /**
+ * Creates a clone of the chain sequence planting `value` as the wrapped value.
+ *
+ * @name plant
+ * @memberOf _
+ * @since 3.2.0
+ * @category Seq
+ * @param {*} value The value to plant.
+ * @returns {Object} Returns the new `lodash` wrapper instance.
+ * @example
+ *
+ * function square(n) {
+ * return n * n;
+ * }
+ *
+ * var wrapped = _([1, 2]).map(square);
+ * var other = wrapped.plant([3, 4]);
+ *
+ * other.value();
+ * // => [9, 16]
+ *
+ * wrapped.value();
+ * // => [1, 4]
+ */
+ function wrapperPlant(value) {
+ var result,
+ parent = this;
+
+ while (parent instanceof baseLodash) {
+ var clone = wrapperClone(parent);
+ clone.__index__ = 0;
+ clone.__values__ = undefined$1;
+ if (result) {
+ previous.__wrapped__ = clone;
+ } else {
+ result = clone;
+ }
+ var previous = clone;
+ parent = parent.__wrapped__;
+ }
+ previous.__wrapped__ = value;
+ return result;
+ }
+
+ /**
+ * This method is the wrapper version of `_.reverse`.
+ *
+ * **Note:** This method mutates the wrapped array.
+ *
+ * @name reverse
+ * @memberOf _
+ * @since 0.1.0
+ * @category Seq
+ * @returns {Object} Returns the new `lodash` wrapper instance.
+ * @example
+ *
+ * var array = [1, 2, 3];
+ *
+ * _(array).reverse().value()
+ * // => [3, 2, 1]
+ *
+ * console.log(array);
+ * // => [3, 2, 1]
+ */
+ function wrapperReverse() {
+ var value = this.__wrapped__;
+ if (value instanceof LazyWrapper) {
+ var wrapped = value;
+ if (this.__actions__.length) {
+ wrapped = new LazyWrapper(this);
+ }
+ wrapped = wrapped.reverse();
+ wrapped.__actions__.push({
+ func: thru,
+ args: [reverse],
+ thisArg: undefined$1,
+ });
+ return new LodashWrapper(wrapped, this.__chain__);
+ }
+ return this.thru(reverse);
+ }
+
+ /**
+ * Executes the chain sequence to resolve the unwrapped value.
+ *
+ * @name value
+ * @memberOf _
+ * @since 0.1.0
+ * @alias toJSON, valueOf
+ * @category Seq
+ * @returns {*} Returns the resolved unwrapped value.
+ * @example
+ *
+ * _([1, 2, 3]).value();
+ * // => [1, 2, 3]
+ */
+ function wrapperValue() {
+ return baseWrapperValue(this.__wrapped__, this.__actions__);
+ }
+
+ /*------------------------------------------------------------------------*/
+
+ /**
+ * Creates an object composed of keys generated from the results of running
+ * each element of `collection` thru `iteratee`. The corresponding value of
+ * each key is the number of times the key was returned by `iteratee`. The
+ * iteratee is invoked with one argument: (value).
+ *
+ * @static
+ * @memberOf _
+ * @since 0.5.0
+ * @category Collection
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
+ * @returns {Object} Returns the composed aggregate object.
+ * @example
+ *
+ * _.countBy([6.1, 4.2, 6.3], Math.floor);
+ * // => { '4': 1, '6': 2 }
+ *
+ * // The `_.property` iteratee shorthand.
+ * _.countBy(['one', 'two', 'three'], 'length');
+ * // => { '3': 2, '5': 1 }
+ */
+ var countBy = createAggregator(function(result, value, key) {
+ if (hasOwnProperty.call(result, key)) {
+ ++result[key];
+ } else {
+ baseAssignValue(result, key, 1);
+ }
+ });
+
+ /**
+ * Checks if `predicate` returns truthy for **all** elements of `collection`.
+ * Iteration is stopped once `predicate` returns falsey. The predicate is
+ * invoked with three arguments: (value, index|key, collection).
+ *
+ * **Note:** This method returns `true` for
+ * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because
+ * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of
+ * elements of empty collections.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Collection
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function} [predicate=_.identity] The function invoked per iteration.
+ * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+ * @returns {boolean} Returns `true` if all elements pass the predicate check,
+ * else `false`.
+ * @example
+ *
+ * _.every([true, 1, null, 'yes'], Boolean);
+ * // => false
+ *
+ * var users = [
+ * { 'user': 'barney', 'age': 36, 'active': false },
+ * { 'user': 'fred', 'age': 40, 'active': false }
+ * ];
+ *
+ * // The `_.matches` iteratee shorthand.
+ * _.every(users, { 'user': 'barney', 'active': false });
+ * // => false
+ *
+ * // The `_.matchesProperty` iteratee shorthand.
+ * _.every(users, ['active', false]);
+ * // => true
+ *
+ * // The `_.property` iteratee shorthand.
+ * _.every(users, 'active');
+ * // => false
+ */
+ function every(collection, predicate, guard) {
+ var func = isArray(collection) ? arrayEvery : baseEvery;
+ if (guard && isIterateeCall(collection, predicate, guard)) {
+ predicate = undefined$1;
+ }
+ return func(collection, getIteratee(predicate, 3));
+ }
+
+ /**
+ * Iterates over elements of `collection`, returning an array of all elements
+ * `predicate` returns truthy for. The predicate is invoked with three
+ * arguments: (value, index|key, collection).
+ *
+ * **Note:** Unlike `_.remove`, this method returns a new array.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Collection
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function} [predicate=_.identity] The function invoked per iteration.
+ * @returns {Array} Returns the new filtered array.
+ * @see _.reject
+ * @example
+ *
+ * var users = [
+ * { 'user': 'barney', 'age': 36, 'active': true },
+ * { 'user': 'fred', 'age': 40, 'active': false }
+ * ];
+ *
+ * _.filter(users, function(o) { return !o.active; });
+ * // => objects for ['fred']
+ *
+ * // The `_.matches` iteratee shorthand.
+ * _.filter(users, { 'age': 36, 'active': true });
+ * // => objects for ['barney']
+ *
+ * // The `_.matchesProperty` iteratee shorthand.
+ * _.filter(users, ['active', false]);
+ * // => objects for ['fred']
+ *
+ * // The `_.property` iteratee shorthand.
+ * _.filter(users, 'active');
+ * // => objects for ['barney']
+ */
+ function filter(collection, predicate) {
+ var func = isArray(collection) ? arrayFilter : baseFilter;
+ return func(collection, getIteratee(predicate, 3));
+ }
+
+ /**
+ * Iterates over elements of `collection`, returning the first element
+ * `predicate` returns truthy for. The predicate is invoked with three
+ * arguments: (value, index|key, collection).
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Collection
+ * @param {Array|Object} collection The collection to inspect.
+ * @param {Function} [predicate=_.identity] The function invoked per iteration.
+ * @param {number} [fromIndex=0] The index to search from.
+ * @returns {*} Returns the matched element, else `undefined`.
+ * @example
+ *
+ * var users = [
+ * { 'user': 'barney', 'age': 36, 'active': true },
+ * { 'user': 'fred', 'age': 40, 'active': false },
+ * { 'user': 'pebbles', 'age': 1, 'active': true }
+ * ];
+ *
+ * _.find(users, function(o) { return o.age < 40; });
+ * // => object for 'barney'
+ *
+ * // The `_.matches` iteratee shorthand.
+ * _.find(users, { 'age': 1, 'active': true });
+ * // => object for 'pebbles'
+ *
+ * // The `_.matchesProperty` iteratee shorthand.
+ * _.find(users, ['active', false]);
+ * // => object for 'fred'
+ *
+ * // The `_.property` iteratee shorthand.
+ * _.find(users, 'active');
+ * // => object for 'barney'
+ */
+ var find = createFind(findIndex);
+
+ /**
+ * This method is like `_.find` except that it iterates over elements of
+ * `collection` from right to left.
+ *
+ * @static
+ * @memberOf _
+ * @since 2.0.0
+ * @category Collection
+ * @param {Array|Object} collection The collection to inspect.
+ * @param {Function} [predicate=_.identity] The function invoked per iteration.
+ * @param {number} [fromIndex=collection.length-1] The index to search from.
+ * @returns {*} Returns the matched element, else `undefined`.
+ * @example
+ *
+ * _.findLast([1, 2, 3, 4], function(n) {
+ * return n % 2 == 1;
+ * });
+ * // => 3
+ */
+ var findLast = createFind(findLastIndex);
+
+ /**
+ * Creates a flattened array of values by running each element in `collection`
+ * thru `iteratee` and flattening the mapped results. The iteratee is invoked
+ * with three arguments: (value, index|key, collection).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Collection
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+ * @returns {Array} Returns the new flattened array.
+ * @example
+ *
+ * function duplicate(n) {
+ * return [n, n];
+ * }
+ *
+ * _.flatMap([1, 2], duplicate);
+ * // => [1, 1, 2, 2]
+ */
+ function flatMap(collection, iteratee) {
+ return baseFlatten(map(collection, iteratee), 1);
+ }
+
+ /**
+ * This method is like `_.flatMap` except that it recursively flattens the
+ * mapped results.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.7.0
+ * @category Collection
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+ * @returns {Array} Returns the new flattened array.
+ * @example
+ *
+ * function duplicate(n) {
+ * return [[[n, n]]];
+ * }
+ *
+ * _.flatMapDeep([1, 2], duplicate);
+ * // => [1, 1, 2, 2]
+ */
+ function flatMapDeep(collection, iteratee) {
+ return baseFlatten(map(collection, iteratee), INFINITY);
+ }
+
+ /**
+ * This method is like `_.flatMap` except that it recursively flattens the
+ * mapped results up to `depth` times.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.7.0
+ * @category Collection
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+ * @param {number} [depth=1] The maximum recursion depth.
+ * @returns {Array} Returns the new flattened array.
+ * @example
+ *
+ * function duplicate(n) {
+ * return [[[n, n]]];
+ * }
+ *
+ * _.flatMapDepth([1, 2], duplicate, 2);
+ * // => [[1, 1], [2, 2]]
+ */
+ function flatMapDepth(collection, iteratee, depth) {
+ depth = depth === undefined$1 ? 1 : toInteger(depth);
+ return baseFlatten(map(collection, iteratee), depth);
+ }
+
+ /**
+ * Iterates over elements of `collection` and invokes `iteratee` for each element.
+ * The iteratee is invoked with three arguments: (value, index|key, collection).
+ * Iteratee functions may exit iteration early by explicitly returning `false`.
+ *
+ * **Note:** As with other "Collections" methods, objects with a "length"
+ * property are iterated like arrays. To avoid this behavior use `_.forIn`
+ * or `_.forOwn` for object iteration.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @alias each
+ * @category Collection
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+ * @returns {Array|Object} Returns `collection`.
+ * @see _.forEachRight
+ * @example
+ *
+ * _.forEach([1, 2], function(value) {
+ * console.log(value);
+ * });
+ * // => Logs `1` then `2`.
+ *
+ * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) {
+ * console.log(key);
+ * });
+ * // => Logs 'a' then 'b' (iteration order is not guaranteed).
+ */
+ function forEach(collection, iteratee) {
+ var func = isArray(collection) ? arrayEach : baseEach;
+ return func(collection, getIteratee(iteratee, 3));
+ }
+
+ /**
+ * This method is like `_.forEach` except that it iterates over elements of
+ * `collection` from right to left.
+ *
+ * @static
+ * @memberOf _
+ * @since 2.0.0
+ * @alias eachRight
+ * @category Collection
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+ * @returns {Array|Object} Returns `collection`.
+ * @see _.forEach
+ * @example
+ *
+ * _.forEachRight([1, 2], function(value) {
+ * console.log(value);
+ * });
+ * // => Logs `2` then `1`.
+ */
+ function forEachRight(collection, iteratee) {
+ var func = isArray(collection) ? arrayEachRight : baseEachRight;
+ return func(collection, getIteratee(iteratee, 3));
+ }
+
+ /**
+ * Creates an object composed of keys generated from the results of running
+ * each element of `collection` thru `iteratee`. The order of grouped values
+ * is determined by the order they occur in `collection`. The corresponding
+ * value of each key is an array of elements responsible for generating the
+ * key. The iteratee is invoked with one argument: (value).
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Collection
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
+ * @returns {Object} Returns the composed aggregate object.
+ * @example
+ *
+ * _.groupBy([6.1, 4.2, 6.3], Math.floor);
+ * // => { '4': [4.2], '6': [6.1, 6.3] }
+ *
+ * // The `_.property` iteratee shorthand.
+ * _.groupBy(['one', 'two', 'three'], 'length');
+ * // => { '3': ['one', 'two'], '5': ['three'] }
+ */
+ var groupBy = createAggregator(function(result, value, key) {
+ if (hasOwnProperty.call(result, key)) {
+ result[key].push(value);
+ } else {
+ baseAssignValue(result, key, [value]);
+ }
+ });
+
+ /**
+ * Checks if `value` is in `collection`. If `collection` is a string, it's
+ * checked for a substring of `value`, otherwise
+ * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
+ * is used for equality comparisons. If `fromIndex` is negative, it's used as
+ * the offset from the end of `collection`.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Collection
+ * @param {Array|Object|string} collection The collection to inspect.
+ * @param {*} value The value to search for.
+ * @param {number} [fromIndex=0] The index to search from.
+ * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.
+ * @returns {boolean} Returns `true` if `value` is found, else `false`.
+ * @example
+ *
+ * _.includes([1, 2, 3], 1);
+ * // => true
+ *
+ * _.includes([1, 2, 3], 1, 2);
+ * // => false
+ *
+ * _.includes({ 'a': 1, 'b': 2 }, 1);
+ * // => true
+ *
+ * _.includes('abcd', 'bc');
+ * // => true
+ */
+ function includes(collection, value, fromIndex, guard) {
+ collection = isArrayLike(collection)
+ ? collection
+ : values(collection);
+ fromIndex = fromIndex && !guard ? toInteger(fromIndex) : 0;
+
+ var length = collection.length;
+ if (fromIndex < 0) {
+ fromIndex = nativeMax(length + fromIndex, 0);
+ }
+ return isString(collection)
+ ? fromIndex <= length &&
+ collection.indexOf(value, fromIndex) > -1
+ : !!length && baseIndexOf(collection, value, fromIndex) > -1;
+ }
+
+ /**
+ * Invokes the method at `path` of each element in `collection`, returning
+ * an array of the results of each invoked method. Any additional arguments
+ * are provided to each invoked method. If `path` is a function, it's invoked
+ * for, and `this` bound to, each element in `collection`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Collection
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Array|Function|string} path The path of the method to invoke or
+ * the function invoked per iteration.
+ * @param {...*} [args] The arguments to invoke each method with.
+ * @returns {Array} Returns the array of results.
+ * @example
+ *
+ * _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort');
+ * // => [[1, 5, 7], [1, 2, 3]]
+ *
+ * _.invokeMap([123, 456], String.prototype.split, '');
+ * // => [['1', '2', '3'], ['4', '5', '6']]
+ */
+ var invokeMap = baseRest(function(collection, path, args) {
+ var index = -1,
+ isFunc = typeof path == 'function',
+ result = isArrayLike(collection)
+ ? Array(collection.length)
+ : [];
+
+ baseEach(collection, function(value) {
+ result[++index] = isFunc
+ ? apply(path, value, args)
+ : baseInvoke(value, path, args);
+ });
+ return result;
+ });
+
+ /**
+ * Creates an object composed of keys generated from the results of running
+ * each element of `collection` thru `iteratee`. The corresponding value of
+ * each key is the last element responsible for generating the key. The
+ * iteratee is invoked with one argument: (value).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Collection
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
+ * @returns {Object} Returns the composed aggregate object.
+ * @example
+ *
+ * var array = [
+ * { 'dir': 'left', 'code': 97 },
+ * { 'dir': 'right', 'code': 100 }
+ * ];
+ *
+ * _.keyBy(array, function(o) {
+ * return String.fromCharCode(o.code);
+ * });
+ * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
+ *
+ * _.keyBy(array, 'dir');
+ * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }
+ */
+ var keyBy = createAggregator(function(result, value, key) {
+ baseAssignValue(result, key, value);
+ });
+
+ /**
+ * Creates an array of values by running each element in `collection` thru
+ * `iteratee`. The iteratee is invoked with three arguments:
+ * (value, index|key, collection).
+ *
+ * Many lodash methods are guarded to work as iteratees for methods like
+ * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.
+ *
+ * The guarded methods are:
+ * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,
+ * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,
+ * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,
+ * `template`, `trim`, `trimEnd`, `trimStart`, and `words`
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Collection
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+ * @returns {Array} Returns the new mapped array.
+ * @example
+ *
+ * function square(n) {
+ * return n * n;
+ * }
+ *
+ * _.map([4, 8], square);
+ * // => [16, 64]
+ *
+ * _.map({ 'a': 4, 'b': 8 }, square);
+ * // => [16, 64] (iteration order is not guaranteed)
+ *
+ * var users = [
+ * { 'user': 'barney' },
+ * { 'user': 'fred' }
+ * ];
+ *
+ * // The `_.property` iteratee shorthand.
+ * _.map(users, 'user');
+ * // => ['barney', 'fred']
+ */
+ function map(collection, iteratee) {
+ var func = isArray(collection) ? arrayMap : baseMap;
+ return func(collection, getIteratee(iteratee, 3));
+ }
+
+ /**
+ * This method is like `_.sortBy` except that it allows specifying the sort
+ * orders of the iteratees to sort by. If `orders` is unspecified, all values
+ * are sorted in ascending order. Otherwise, specify an order of "desc" for
+ * descending or "asc" for ascending sort order of corresponding values.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Collection
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]]
+ * The iteratees to sort by.
+ * @param {string[]} [orders] The sort orders of `iteratees`.
+ * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.
+ * @returns {Array} Returns the new sorted array.
+ * @example
+ *
+ * var users = [
+ * { 'user': 'fred', 'age': 48 },
+ * { 'user': 'barney', 'age': 34 },
+ * { 'user': 'fred', 'age': 40 },
+ * { 'user': 'barney', 'age': 36 }
+ * ];
+ *
+ * // Sort by `user` in ascending order and by `age` in descending order.
+ * _.orderBy(users, ['user', 'age'], ['asc', 'desc']);
+ * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]
+ */
+ function orderBy(collection, iteratees, orders, guard) {
+ if (collection == null) {
+ return [];
+ }
+ if (!isArray(iteratees)) {
+ iteratees = iteratees == null ? [] : [iteratees];
+ }
+ orders = guard ? undefined$1 : orders;
+ if (!isArray(orders)) {
+ orders = orders == null ? [] : [orders];
+ }
+ return baseOrderBy(collection, iteratees, orders);
+ }
+
+ /**
+ * Creates an array of elements split into two groups, the first of which
+ * contains elements `predicate` returns truthy for, the second of which
+ * contains elements `predicate` returns falsey for. The predicate is
+ * invoked with one argument: (value).
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Collection
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function} [predicate=_.identity] The function invoked per iteration.
+ * @returns {Array} Returns the array of grouped elements.
+ * @example
+ *
+ * var users = [
+ * { 'user': 'barney', 'age': 36, 'active': false },
+ * { 'user': 'fred', 'age': 40, 'active': true },
+ * { 'user': 'pebbles', 'age': 1, 'active': false }
+ * ];
+ *
+ * _.partition(users, function(o) { return o.active; });
+ * // => objects for [['fred'], ['barney', 'pebbles']]
+ *
+ * // The `_.matches` iteratee shorthand.
+ * _.partition(users, { 'age': 1, 'active': false });
+ * // => objects for [['pebbles'], ['barney', 'fred']]
+ *
+ * // The `_.matchesProperty` iteratee shorthand.
+ * _.partition(users, ['active', false]);
+ * // => objects for [['barney', 'pebbles'], ['fred']]
+ *
+ * // The `_.property` iteratee shorthand.
+ * _.partition(users, 'active');
+ * // => objects for [['fred'], ['barney', 'pebbles']]
+ */
+ var partition = createAggregator(
+ function(result, value, key) {
+ result[key ? 0 : 1].push(value);
+ },
+ function() {
+ return [[], []];
+ },
+ );
+
+ /**
+ * Reduces `collection` to a value which is the accumulated result of running
+ * each element in `collection` thru `iteratee`, where each successive
+ * invocation is supplied the return value of the previous. If `accumulator`
+ * is not given, the first element of `collection` is used as the initial
+ * value. The iteratee is invoked with four arguments:
+ * (accumulator, value, index|key, collection).
+ *
+ * Many lodash methods are guarded to work as iteratees for methods like
+ * `_.reduce`, `_.reduceRight`, and `_.transform`.
+ *
+ * The guarded methods are:
+ * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`,
+ * and `sortBy`
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Collection
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+ * @param {*} [accumulator] The initial value.
+ * @returns {*} Returns the accumulated value.
+ * @see _.reduceRight
+ * @example
+ *
+ * _.reduce([1, 2], function(sum, n) {
+ * return sum + n;
+ * }, 0);
+ * // => 3
+ *
+ * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {
+ * (result[value] || (result[value] = [])).push(key);
+ * return result;
+ * }, {});
+ * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed)
+ */
+ function reduce(collection, iteratee, accumulator) {
+ var func = isArray(collection) ? arrayReduce : baseReduce,
+ initAccum = arguments.length < 3;
+
+ return func(
+ collection,
+ getIteratee(iteratee, 4),
+ accumulator,
+ initAccum,
+ baseEach,
+ );
+ }
+
+ /**
+ * This method is like `_.reduce` except that it iterates over elements of
+ * `collection` from right to left.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Collection
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+ * @param {*} [accumulator] The initial value.
+ * @returns {*} Returns the accumulated value.
+ * @see _.reduce
+ * @example
+ *
+ * var array = [[0, 1], [2, 3], [4, 5]];
+ *
+ * _.reduceRight(array, function(flattened, other) {
+ * return flattened.concat(other);
+ * }, []);
+ * // => [4, 5, 2, 3, 0, 1]
+ */
+ function reduceRight(collection, iteratee, accumulator) {
+ var func = isArray(collection) ? arrayReduceRight : baseReduce,
+ initAccum = arguments.length < 3;
+
+ return func(
+ collection,
+ getIteratee(iteratee, 4),
+ accumulator,
+ initAccum,
+ baseEachRight,
+ );
+ }
+
+ /**
+ * The opposite of `_.filter`; this method returns the elements of `collection`
+ * that `predicate` does **not** return truthy for.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Collection
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function} [predicate=_.identity] The function invoked per iteration.
+ * @returns {Array} Returns the new filtered array.
+ * @see _.filter
+ * @example
+ *
+ * var users = [
+ * { 'user': 'barney', 'age': 36, 'active': false },
+ * { 'user': 'fred', 'age': 40, 'active': true }
+ * ];
+ *
+ * _.reject(users, function(o) { return !o.active; });
+ * // => objects for ['fred']
+ *
+ * // The `_.matches` iteratee shorthand.
+ * _.reject(users, { 'age': 40, 'active': true });
+ * // => objects for ['barney']
+ *
+ * // The `_.matchesProperty` iteratee shorthand.
+ * _.reject(users, ['active', false]);
+ * // => objects for ['fred']
+ *
+ * // The `_.property` iteratee shorthand.
+ * _.reject(users, 'active');
+ * // => objects for ['barney']
+ */
+ function reject(collection, predicate) {
+ var func = isArray(collection) ? arrayFilter : baseFilter;
+ return func(collection, negate(getIteratee(predicate, 3)));
+ }
+
+ /**
+ * Gets a random element from `collection`.
+ *
+ * @static
+ * @memberOf _
+ * @since 2.0.0
+ * @category Collection
+ * @param {Array|Object} collection The collection to sample.
+ * @returns {*} Returns the random element.
+ * @example
+ *
+ * _.sample([1, 2, 3, 4]);
+ * // => 2
+ */
+ function sample(collection) {
+ var func = isArray(collection) ? arraySample : baseSample;
+ return func(collection);
+ }
+
+ /**
+ * Gets `n` random elements at unique keys from `collection` up to the
+ * size of `collection`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Collection
+ * @param {Array|Object} collection The collection to sample.
+ * @param {number} [n=1] The number of elements to sample.
+ * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+ * @returns {Array} Returns the random elements.
+ * @example
+ *
+ * _.sampleSize([1, 2, 3], 2);
+ * // => [3, 1]
+ *
+ * _.sampleSize([1, 2, 3], 4);
+ * // => [2, 3, 1]
+ */
+ function sampleSize(collection, n, guard) {
+ if (
+ guard ? isIterateeCall(collection, n, guard) : n === undefined$1
+ ) {
+ n = 1;
+ } else {
+ n = toInteger(n);
+ }
+ var func = isArray(collection) ? arraySampleSize : baseSampleSize;
+ return func(collection, n);
+ }
+
+ /**
+ * Creates an array of shuffled values, using a version of the
+ * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Collection
+ * @param {Array|Object} collection The collection to shuffle.
+ * @returns {Array} Returns the new shuffled array.
+ * @example
+ *
+ * _.shuffle([1, 2, 3, 4]);
+ * // => [4, 1, 3, 2]
+ */
+ function shuffle(collection) {
+ var func = isArray(collection) ? arrayShuffle : baseShuffle;
+ return func(collection);
+ }
+
+ /**
+ * Gets the size of `collection` by returning its length for array-like
+ * values or the number of own enumerable string keyed properties for objects.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Collection
+ * @param {Array|Object|string} collection The collection to inspect.
+ * @returns {number} Returns the collection size.
+ * @example
+ *
+ * _.size([1, 2, 3]);
+ * // => 3
+ *
+ * _.size({ 'a': 1, 'b': 2 });
+ * // => 2
+ *
+ * _.size('pebbles');
+ * // => 7
+ */
+ function size(collection) {
+ if (collection == null) {
+ return 0;
+ }
+ if (isArrayLike(collection)) {
+ return isString(collection)
+ ? stringSize(collection)
+ : collection.length;
+ }
+ var tag = getTag(collection);
+ if (tag == mapTag || tag == setTag) {
+ return collection.size;
+ }
+ return baseKeys(collection).length;
+ }
+
+ /**
+ * Checks if `predicate` returns truthy for **any** element of `collection`.
+ * Iteration is stopped once `predicate` returns truthy. The predicate is
+ * invoked with three arguments: (value, index|key, collection).
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Collection
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function} [predicate=_.identity] The function invoked per iteration.
+ * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+ * @returns {boolean} Returns `true` if any element passes the predicate check,
+ * else `false`.
+ * @example
+ *
+ * _.some([null, 0, 'yes', false], Boolean);
+ * // => true
+ *
+ * var users = [
+ * { 'user': 'barney', 'active': true },
+ * { 'user': 'fred', 'active': false }
+ * ];
+ *
+ * // The `_.matches` iteratee shorthand.
+ * _.some(users, { 'user': 'barney', 'active': false });
+ * // => false
+ *
+ * // The `_.matchesProperty` iteratee shorthand.
+ * _.some(users, ['active', false]);
+ * // => true
+ *
+ * // The `_.property` iteratee shorthand.
+ * _.some(users, 'active');
+ * // => true
+ */
+ function some(collection, predicate, guard) {
+ var func = isArray(collection) ? arraySome : baseSome;
+ if (guard && isIterateeCall(collection, predicate, guard)) {
+ predicate = undefined$1;
+ }
+ return func(collection, getIteratee(predicate, 3));
+ }
+
+ /**
+ * Creates an array of elements, sorted in ascending order by the results of
+ * running each element in a collection thru each iteratee. This method
+ * performs a stable sort, that is, it preserves the original sort order of
+ * equal elements. The iteratees are invoked with one argument: (value).
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Collection
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {...(Function|Function[])} [iteratees=[_.identity]]
+ * The iteratees to sort by.
+ * @returns {Array} Returns the new sorted array.
+ * @example
+ *
+ * var users = [
+ * { 'user': 'fred', 'age': 48 },
+ * { 'user': 'barney', 'age': 36 },
+ * { 'user': 'fred', 'age': 40 },
+ * { 'user': 'barney', 'age': 34 }
+ * ];
+ *
+ * _.sortBy(users, [function(o) { return o.user; }]);
+ * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]
+ *
+ * _.sortBy(users, ['user', 'age']);
+ * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]]
+ */
+ var sortBy = baseRest(function(collection, iteratees) {
+ if (collection == null) {
+ return [];
+ }
+ var length = iteratees.length;
+ if (
+ length > 1 &&
+ isIterateeCall(collection, iteratees[0], iteratees[1])
+ ) {
+ iteratees = [];
+ } else if (
+ length > 2 &&
+ isIterateeCall(iteratees[0], iteratees[1], iteratees[2])
+ ) {
+ iteratees = [iteratees[0]];
+ }
+ return baseOrderBy(collection, baseFlatten(iteratees, 1), []);
+ });
+
+ /*------------------------------------------------------------------------*/
+
+ /**
+ * Gets the timestamp of the number of milliseconds that have elapsed since
+ * the Unix epoch (1 January 1970 00:00:00 UTC).
+ *
+ * @static
+ * @memberOf _
+ * @since 2.4.0
+ * @category Date
+ * @returns {number} Returns the timestamp.
+ * @example
+ *
+ * _.defer(function(stamp) {
+ * console.log(_.now() - stamp);
+ * }, _.now());
+ * // => Logs the number of milliseconds it took for the deferred invocation.
+ */
+ var now =
+ ctxNow ||
+ function() {
+ return root.Date.now();
+ };
+
+ /*------------------------------------------------------------------------*/
+
+ /**
+ * The opposite of `_.before`; this method creates a function that invokes
+ * `func` once it's called `n` or more times.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Function
+ * @param {number} n The number of calls before `func` is invoked.
+ * @param {Function} func The function to restrict.
+ * @returns {Function} Returns the new restricted function.
+ * @example
+ *
+ * var saves = ['profile', 'settings'];
+ *
+ * var done = _.after(saves.length, function() {
+ * console.log('done saving!');
+ * });
+ *
+ * _.forEach(saves, function(type) {
+ * asyncSave({ 'type': type, 'complete': done });
+ * });
+ * // => Logs 'done saving!' after the two async saves have completed.
+ */
+ function after(n, func) {
+ if (typeof func != 'function') {
+ throw new TypeError(FUNC_ERROR_TEXT);
+ }
+ n = toInteger(n);
+ return function() {
+ if (--n < 1) {
+ return func.apply(this, arguments);
+ }
+ };
+ }
+
+ /**
+ * Creates a function that invokes `func`, with up to `n` arguments,
+ * ignoring any additional arguments.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Function
+ * @param {Function} func The function to cap arguments for.
+ * @param {number} [n=func.length] The arity cap.
+ * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+ * @returns {Function} Returns the new capped function.
+ * @example
+ *
+ * _.map(['6', '8', '10'], _.ary(parseInt, 1));
+ * // => [6, 8, 10]
+ */
+ function ary(func, n, guard) {
+ n = guard ? undefined$1 : n;
+ n = func && n == null ? func.length : n;
+ return createWrap(
+ func,
+ WRAP_ARY_FLAG,
+ undefined$1,
+ undefined$1,
+ undefined$1,
+ undefined$1,
+ n,
+ );
+ }
+
+ /**
+ * Creates a function that invokes `func`, with the `this` binding and arguments
+ * of the created function, while it's called less than `n` times. Subsequent
+ * calls to the created function return the result of the last `func` invocation.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Function
+ * @param {number} n The number of calls at which `func` is no longer invoked.
+ * @param {Function} func The function to restrict.
+ * @returns {Function} Returns the new restricted function.
+ * @example
+ *
+ * jQuery(element).on('click', _.before(5, addContactToList));
+ * // => Allows adding up to 4 contacts to the list.
+ */
+ function before(n, func) {
+ var result;
+ if (typeof func != 'function') {
+ throw new TypeError(FUNC_ERROR_TEXT);
+ }
+ n = toInteger(n);
+ return function() {
+ if (--n > 0) {
+ result = func.apply(this, arguments);
+ }
+ if (n <= 1) {
+ func = undefined$1;
+ }
+ return result;
+ };
+ }
+
+ /**
+ * Creates a function that invokes `func` with the `this` binding of `thisArg`
+ * and `partials` prepended to the arguments it receives.
+ *
+ * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,
+ * may be used as a placeholder for partially applied arguments.
+ *
+ * **Note:** Unlike native `Function#bind`, this method doesn't set the "length"
+ * property of bound functions.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Function
+ * @param {Function} func The function to bind.
+ * @param {*} thisArg The `this` binding of `func`.
+ * @param {...*} [partials] The arguments to be partially applied.
+ * @returns {Function} Returns the new bound function.
+ * @example
+ *
+ * function greet(greeting, punctuation) {
+ * return greeting + ' ' + this.user + punctuation;
+ * }
+ *
+ * var object = { 'user': 'fred' };
+ *
+ * var bound = _.bind(greet, object, 'hi');
+ * bound('!');
+ * // => 'hi fred!'
+ *
+ * // Bound with placeholders.
+ * var bound = _.bind(greet, object, _, '!');
+ * bound('hi');
+ * // => 'hi fred!'
+ */
+ var bind = baseRest(function(func, thisArg, partials) {
+ var bitmask = WRAP_BIND_FLAG;
+ if (partials.length) {
+ var holders = replaceHolders(partials, getHolder(bind));
+ bitmask |= WRAP_PARTIAL_FLAG;
+ }
+ return createWrap(func, bitmask, thisArg, partials, holders);
+ });
+
+ /**
+ * Creates a function that invokes the method at `object[key]` with `partials`
+ * prepended to the arguments it receives.
+ *
+ * This method differs from `_.bind` by allowing bound functions to reference
+ * methods that may be redefined or don't yet exist. See
+ * [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)
+ * for more details.
+ *
+ * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic
+ * builds, may be used as a placeholder for partially applied arguments.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.10.0
+ * @category Function
+ * @param {Object} object The object to invoke the method on.
+ * @param {string} key The key of the method.
+ * @param {...*} [partials] The arguments to be partially applied.
+ * @returns {Function} Returns the new bound function.
+ * @example
+ *
+ * var object = {
+ * 'user': 'fred',
+ * 'greet': function(greeting, punctuation) {
+ * return greeting + ' ' + this.user + punctuation;
+ * }
+ * };
+ *
+ * var bound = _.bindKey(object, 'greet', 'hi');
+ * bound('!');
+ * // => 'hi fred!'
+ *
+ * object.greet = function(greeting, punctuation) {
+ * return greeting + 'ya ' + this.user + punctuation;
+ * };
+ *
+ * bound('!');
+ * // => 'hiya fred!'
+ *
+ * // Bound with placeholders.
+ * var bound = _.bindKey(object, 'greet', _, '!');
+ * bound('hi');
+ * // => 'hiya fred!'
+ */
+ var bindKey = baseRest(function(object, key, partials) {
+ var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG;
+ if (partials.length) {
+ var holders = replaceHolders(partials, getHolder(bindKey));
+ bitmask |= WRAP_PARTIAL_FLAG;
+ }
+ return createWrap(key, bitmask, object, partials, holders);
+ });
+
+ /**
+ * Creates a function that accepts arguments of `func` and either invokes
+ * `func` returning its result, if at least `arity` number of arguments have
+ * been provided, or returns a function that accepts the remaining `func`
+ * arguments, and so on. The arity of `func` may be specified if `func.length`
+ * is not sufficient.
+ *
+ * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,
+ * may be used as a placeholder for provided arguments.
+ *
+ * **Note:** This method doesn't set the "length" property of curried functions.
+ *
+ * @static
+ * @memberOf _
+ * @since 2.0.0
+ * @category Function
+ * @param {Function} func The function to curry.
+ * @param {number} [arity=func.length] The arity of `func`.
+ * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+ * @returns {Function} Returns the new curried function.
+ * @example
+ *
+ * var abc = function(a, b, c) {
+ * return [a, b, c];
+ * };
+ *
+ * var curried = _.curry(abc);
+ *
+ * curried(1)(2)(3);
+ * // => [1, 2, 3]
+ *
+ * curried(1, 2)(3);
+ * // => [1, 2, 3]
+ *
+ * curried(1, 2, 3);
+ * // => [1, 2, 3]
+ *
+ * // Curried with placeholders.
+ * curried(1)(_, 3)(2);
+ * // => [1, 2, 3]
+ */
+ function curry(func, arity, guard) {
+ arity = guard ? undefined$1 : arity;
+ var result = createWrap(
+ func,
+ WRAP_CURRY_FLAG,
+ undefined$1,
+ undefined$1,
+ undefined$1,
+ undefined$1,
+ undefined$1,
+ arity,
+ );
+ result.placeholder = curry.placeholder;
+ return result;
+ }
+
+ /**
+ * This method is like `_.curry` except that arguments are applied to `func`
+ * in the manner of `_.partialRight` instead of `_.partial`.
+ *
+ * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic
+ * builds, may be used as a placeholder for provided arguments.
+ *
+ * **Note:** This method doesn't set the "length" property of curried functions.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Function
+ * @param {Function} func The function to curry.
+ * @param {number} [arity=func.length] The arity of `func`.
+ * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+ * @returns {Function} Returns the new curried function.
+ * @example
+ *
+ * var abc = function(a, b, c) {
+ * return [a, b, c];
+ * };
+ *
+ * var curried = _.curryRight(abc);
+ *
+ * curried(3)(2)(1);
+ * // => [1, 2, 3]
+ *
+ * curried(2, 3)(1);
+ * // => [1, 2, 3]
+ *
+ * curried(1, 2, 3);
+ * // => [1, 2, 3]
+ *
+ * // Curried with placeholders.
+ * curried(3)(1, _)(2);
+ * // => [1, 2, 3]
+ */
+ function curryRight(func, arity, guard) {
+ arity = guard ? undefined$1 : arity;
+ var result = createWrap(
+ func,
+ WRAP_CURRY_RIGHT_FLAG,
+ undefined$1,
+ undefined$1,
+ undefined$1,
+ undefined$1,
+ undefined$1,
+ arity,
+ );
+ result.placeholder = curryRight.placeholder;
+ return result;
+ }
+
+ /**
+ * Creates a debounced function that delays invoking `func` until after `wait`
+ * milliseconds have elapsed since the last time the debounced function was
+ * invoked. The debounced function comes with a `cancel` method to cancel
+ * delayed `func` invocations and a `flush` method to immediately invoke them.
+ * Provide `options` to indicate whether `func` should be invoked on the
+ * leading and/or trailing edge of the `wait` timeout. The `func` is invoked
+ * with the last arguments provided to the debounced function. Subsequent
+ * calls to the debounced function return the result of the last `func`
+ * invocation.
+ *
+ * **Note:** If `leading` and `trailing` options are `true`, `func` is
+ * invoked on the trailing edge of the timeout only if the debounced function
+ * is invoked more than once during the `wait` timeout.
+ *
+ * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
+ * until to the next tick, similar to `setTimeout` with a timeout of `0`.
+ *
+ * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
+ * for details over the differences between `_.debounce` and `_.throttle`.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Function
+ * @param {Function} func The function to debounce.
+ * @param {number} [wait=0] The number of milliseconds to delay.
+ * @param {Object} [options={}] The options object.
+ * @param {boolean} [options.leading=false]
+ * Specify invoking on the leading edge of the timeout.
+ * @param {number} [options.maxWait]
+ * The maximum time `func` is allowed to be delayed before it's invoked.
+ * @param {boolean} [options.trailing=true]
+ * Specify invoking on the trailing edge of the timeout.
+ * @returns {Function} Returns the new debounced function.
+ * @example
+ *
+ * // Avoid costly calculations while the window size is in flux.
+ * jQuery(window).on('resize', _.debounce(calculateLayout, 150));
+ *
+ * // Invoke `sendMail` when clicked, debouncing subsequent calls.
+ * jQuery(element).on('click', _.debounce(sendMail, 300, {
+ * 'leading': true,
+ * 'trailing': false
+ * }));
+ *
+ * // Ensure `batchLog` is invoked once after 1 second of debounced calls.
+ * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });
+ * var source = new EventSource('/stream');
+ * jQuery(source).on('message', debounced);
+ *
+ * // Cancel the trailing debounced invocation.
+ * jQuery(window).on('popstate', debounced.cancel);
+ */
+ function debounce(func, wait, options) {
+ var lastArgs,
+ lastThis,
+ maxWait,
+ result,
+ timerId,
+ lastCallTime,
+ lastInvokeTime = 0,
+ leading = false,
+ maxing = false,
+ trailing = true;
+
+ if (typeof func != 'function') {
+ throw new TypeError(FUNC_ERROR_TEXT);
+ }
+ wait = toNumber(wait) || 0;
+ if (isObject(options)) {
+ leading = !!options.leading;
+ maxing = 'maxWait' in options;
+ maxWait = maxing
+ ? nativeMax(toNumber(options.maxWait) || 0, wait)
+ : maxWait;
+ trailing =
+ 'trailing' in options ? !!options.trailing : trailing;
+ }
+
+ function invokeFunc(time) {
+ var args = lastArgs,
+ thisArg = lastThis;
+
+ lastArgs = lastThis = undefined$1;
+ lastInvokeTime = time;
+ result = func.apply(thisArg, args);
+ return result;
+ }
+
+ function leadingEdge(time) {
+ // Reset any `maxWait` timer.
+ lastInvokeTime = time;
+ // Start the timer for the trailing edge.
+ timerId = setTimeout(timerExpired, wait);
+ // Invoke the leading edge.
+ return leading ? invokeFunc(time) : result;
+ }
+
+ function remainingWait(time) {
+ var timeSinceLastCall = time - lastCallTime,
+ timeSinceLastInvoke = time - lastInvokeTime,
+ timeWaiting = wait - timeSinceLastCall;
+
+ return maxing
+ ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke)
+ : timeWaiting;
+ }
+
+ function shouldInvoke(time) {
+ var timeSinceLastCall = time - lastCallTime,
+ timeSinceLastInvoke = time - lastInvokeTime;
+
+ // Either this is the first call, activity has stopped and we're at the
+ // trailing edge, the system time has gone backwards and we're treating
+ // it as the trailing edge, or we've hit the `maxWait` limit.
+ return (
+ lastCallTime === undefined$1 ||
+ timeSinceLastCall >= wait ||
+ timeSinceLastCall < 0 ||
+ (maxing && timeSinceLastInvoke >= maxWait)
+ );
+ }
+
+ function timerExpired() {
+ var time = now();
+ if (shouldInvoke(time)) {
+ return trailingEdge(time);
+ }
+ // Restart the timer.
+ timerId = setTimeout(timerExpired, remainingWait(time));
+ }
+
+ function trailingEdge(time) {
+ timerId = undefined$1;
+
+ // Only invoke if we have `lastArgs` which means `func` has been
+ // debounced at least once.
+ if (trailing && lastArgs) {
+ return invokeFunc(time);
+ }
+ lastArgs = lastThis = undefined$1;
+ return result;
+ }
+
+ function cancel() {
+ if (timerId !== undefined$1) {
+ clearTimeout(timerId);
+ }
+ lastInvokeTime = 0;
+ lastArgs = lastCallTime = lastThis = timerId = undefined$1;
+ }
+
+ function flush() {
+ return timerId === undefined$1 ? result : trailingEdge(now());
+ }
+
+ function debounced() {
+ var time = now(),
+ isInvoking = shouldInvoke(time);
+
+ lastArgs = arguments;
+ lastThis = this;
+ lastCallTime = time;
+
+ if (isInvoking) {
+ if (timerId === undefined$1) {
+ return leadingEdge(lastCallTime);
+ }
+ if (maxing) {
+ // Handle invocations in a tight loop.
+ clearTimeout(timerId);
+ timerId = setTimeout(timerExpired, wait);
+ return invokeFunc(lastCallTime);
+ }
+ }
+ if (timerId === undefined$1) {
+ timerId = setTimeout(timerExpired, wait);
+ }
+ return result;
+ }
+ debounced.cancel = cancel;
+ debounced.flush = flush;
+ return debounced;
+ }
+
+ /**
+ * Defers invoking the `func` until the current call stack has cleared. Any
+ * additional arguments are provided to `func` when it's invoked.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Function
+ * @param {Function} func The function to defer.
+ * @param {...*} [args] The arguments to invoke `func` with.
+ * @returns {number} Returns the timer id.
+ * @example
+ *
+ * _.defer(function(text) {
+ * console.log(text);
+ * }, 'deferred');
+ * // => Logs 'deferred' after one millisecond.
+ */
+ var defer = baseRest(function(func, args) {
+ return baseDelay(func, 1, args);
+ });
+
+ /**
+ * Invokes `func` after `wait` milliseconds. Any additional arguments are
+ * provided to `func` when it's invoked.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Function
+ * @param {Function} func The function to delay.
+ * @param {number} wait The number of milliseconds to delay invocation.
+ * @param {...*} [args] The arguments to invoke `func` with.
+ * @returns {number} Returns the timer id.
+ * @example
+ *
+ * _.delay(function(text) {
+ * console.log(text);
+ * }, 1000, 'later');
+ * // => Logs 'later' after one second.
+ */
+ var delay = baseRest(function(func, wait, args) {
+ return baseDelay(func, toNumber(wait) || 0, args);
+ });
+
+ /**
+ * Creates a function that invokes `func` with arguments reversed.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Function
+ * @param {Function} func The function to flip arguments for.
+ * @returns {Function} Returns the new flipped function.
+ * @example
+ *
+ * var flipped = _.flip(function() {
+ * return _.toArray(arguments);
+ * });
+ *
+ * flipped('a', 'b', 'c', 'd');
+ * // => ['d', 'c', 'b', 'a']
+ */
+ function flip(func) {
+ return createWrap(func, WRAP_FLIP_FLAG);
+ }
+
+ /**
+ * Creates a function that memoizes the result of `func`. If `resolver` is
+ * provided, it determines the cache key for storing the result based on the
+ * arguments provided to the memoized function. By default, the first argument
+ * provided to the memoized function is used as the map cache key. The `func`
+ * is invoked with the `this` binding of the memoized function.
+ *
+ * **Note:** The cache is exposed as the `cache` property on the memoized
+ * function. Its creation may be customized by replacing the `_.memoize.Cache`
+ * constructor with one whose instances implement the
+ * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)
+ * method interface of `clear`, `delete`, `get`, `has`, and `set`.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Function
+ * @param {Function} func The function to have its output memoized.
+ * @param {Function} [resolver] The function to resolve the cache key.
+ * @returns {Function} Returns the new memoized function.
+ * @example
+ *
+ * var object = { 'a': 1, 'b': 2 };
+ * var other = { 'c': 3, 'd': 4 };
+ *
+ * var values = _.memoize(_.values);
+ * values(object);
+ * // => [1, 2]
+ *
+ * values(other);
+ * // => [3, 4]
+ *
+ * object.a = 2;
+ * values(object);
+ * // => [1, 2]
+ *
+ * // Modify the result cache.
+ * values.cache.set(object, ['a', 'b']);
+ * values(object);
+ * // => ['a', 'b']
+ *
+ * // Replace `_.memoize.Cache`.
+ * _.memoize.Cache = WeakMap;
+ */
+ function memoize(func, resolver) {
+ if (
+ typeof func != 'function' ||
+ (resolver != null && typeof resolver != 'function')
+ ) {
+ throw new TypeError(FUNC_ERROR_TEXT);
+ }
+ var memoized = function() {
+ var args = arguments,
+ key = resolver ? resolver.apply(this, args) : args[0],
+ cache = memoized.cache;
+
+ if (cache.has(key)) {
+ return cache.get(key);
+ }
+ var result = func.apply(this, args);
+ memoized.cache = cache.set(key, result) || cache;
+ return result;
+ };
+ memoized.cache = new (memoize.Cache || MapCache)();
+ return memoized;
+ }
+
+ // Expose `MapCache`.
+ memoize.Cache = MapCache;
+
+ /**
+ * Creates a function that negates the result of the predicate `func`. The
+ * `func` predicate is invoked with the `this` binding and arguments of the
+ * created function.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Function
+ * @param {Function} predicate The predicate to negate.
+ * @returns {Function} Returns the new negated function.
+ * @example
+ *
+ * function isEven(n) {
+ * return n % 2 == 0;
+ * }
+ *
+ * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));
+ * // => [1, 3, 5]
+ */
+ function negate(predicate) {
+ if (typeof predicate != 'function') {
+ throw new TypeError(FUNC_ERROR_TEXT);
+ }
+ return function() {
+ var args = arguments;
+ switch (args.length) {
+ case 0:
+ return !predicate.call(this);
+ case 1:
+ return !predicate.call(this, args[0]);
+ case 2:
+ return !predicate.call(this, args[0], args[1]);
+ case 3:
+ return !predicate.call(this, args[0], args[1], args[2]);
+ }
+ return !predicate.apply(this, args);
+ };
+ }
+
+ /**
+ * Creates a function that is restricted to invoking `func` once. Repeat calls
+ * to the function return the value of the first invocation. The `func` is
+ * invoked with the `this` binding and arguments of the created function.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Function
+ * @param {Function} func The function to restrict.
+ * @returns {Function} Returns the new restricted function.
+ * @example
+ *
+ * var initialize = _.once(createApplication);
+ * initialize();
+ * initialize();
+ * // => `createApplication` is invoked once
+ */
+ function once(func) {
+ return before(2, func);
+ }
+
+ /**
+ * Creates a function that invokes `func` with its arguments transformed.
+ *
+ * @static
+ * @since 4.0.0
+ * @memberOf _
+ * @category Function
+ * @param {Function} func The function to wrap.
+ * @param {...(Function|Function[])} [transforms=[_.identity]]
+ * The argument transforms.
+ * @returns {Function} Returns the new function.
+ * @example
+ *
+ * function doubled(n) {
+ * return n * 2;
+ * }
+ *
+ * function square(n) {
+ * return n * n;
+ * }
+ *
+ * var func = _.overArgs(function(x, y) {
+ * return [x, y];
+ * }, [square, doubled]);
+ *
+ * func(9, 3);
+ * // => [81, 6]
+ *
+ * func(10, 5);
+ * // => [100, 10]
+ */
+ var overArgs = castRest(function(func, transforms) {
+ transforms =
+ transforms.length == 1 && isArray(transforms[0])
+ ? arrayMap(transforms[0], baseUnary(getIteratee()))
+ : arrayMap(
+ baseFlatten(transforms, 1),
+ baseUnary(getIteratee()),
+ );
+
+ var funcsLength = transforms.length;
+ return baseRest(function(args) {
+ var index = -1,
+ length = nativeMin(args.length, funcsLength);
+
+ while (++index < length) {
+ args[index] = transforms[index].call(this, args[index]);
+ }
+ return apply(func, this, args);
+ });
+ });
+
+ /**
+ * Creates a function that invokes `func` with `partials` prepended to the
+ * arguments it receives. This method is like `_.bind` except it does **not**
+ * alter the `this` binding.
+ *
+ * The `_.partial.placeholder` value, which defaults to `_` in monolithic
+ * builds, may be used as a placeholder for partially applied arguments.
+ *
+ * **Note:** This method doesn't set the "length" property of partially
+ * applied functions.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.2.0
+ * @category Function
+ * @param {Function} func The function to partially apply arguments to.
+ * @param {...*} [partials] The arguments to be partially applied.
+ * @returns {Function} Returns the new partially applied function.
+ * @example
+ *
+ * function greet(greeting, name) {
+ * return greeting + ' ' + name;
+ * }
+ *
+ * var sayHelloTo = _.partial(greet, 'hello');
+ * sayHelloTo('fred');
+ * // => 'hello fred'
+ *
+ * // Partially applied with placeholders.
+ * var greetFred = _.partial(greet, _, 'fred');
+ * greetFred('hi');
+ * // => 'hi fred'
+ */
+ var partial = baseRest(function(func, partials) {
+ var holders = replaceHolders(partials, getHolder(partial));
+ return createWrap(
+ func,
+ WRAP_PARTIAL_FLAG,
+ undefined$1,
+ partials,
+ holders,
+ );
+ });
+
+ /**
+ * This method is like `_.partial` except that partially applied arguments
+ * are appended to the arguments it receives.
+ *
+ * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic
+ * builds, may be used as a placeholder for partially applied arguments.
+ *
+ * **Note:** This method doesn't set the "length" property of partially
+ * applied functions.
+ *
+ * @static
+ * @memberOf _
+ * @since 1.0.0
+ * @category Function
+ * @param {Function} func The function to partially apply arguments to.
+ * @param {...*} [partials] The arguments to be partially applied.
+ * @returns {Function} Returns the new partially applied function.
+ * @example
+ *
+ * function greet(greeting, name) {
+ * return greeting + ' ' + name;
+ * }
+ *
+ * var greetFred = _.partialRight(greet, 'fred');
+ * greetFred('hi');
+ * // => 'hi fred'
+ *
+ * // Partially applied with placeholders.
+ * var sayHelloTo = _.partialRight(greet, 'hello', _);
+ * sayHelloTo('fred');
+ * // => 'hello fred'
+ */
+ var partialRight = baseRest(function(func, partials) {
+ var holders = replaceHolders(partials, getHolder(partialRight));
+ return createWrap(
+ func,
+ WRAP_PARTIAL_RIGHT_FLAG,
+ undefined$1,
+ partials,
+ holders,
+ );
+ });
+
+ /**
+ * Creates a function that invokes `func` with arguments arranged according
+ * to the specified `indexes` where the argument value at the first index is
+ * provided as the first argument, the argument value at the second index is
+ * provided as the second argument, and so on.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Function
+ * @param {Function} func The function to rearrange arguments for.
+ * @param {...(number|number[])} indexes The arranged argument indexes.
+ * @returns {Function} Returns the new function.
+ * @example
+ *
+ * var rearged = _.rearg(function(a, b, c) {
+ * return [a, b, c];
+ * }, [2, 0, 1]);
+ *
+ * rearged('b', 'c', 'a')
+ * // => ['a', 'b', 'c']
+ */
+ var rearg = flatRest(function(func, indexes) {
+ return createWrap(
+ func,
+ WRAP_REARG_FLAG,
+ undefined$1,
+ undefined$1,
+ undefined$1,
+ indexes,
+ );
+ });
+
+ /**
+ * Creates a function that invokes `func` with the `this` binding of the
+ * created function and arguments from `start` and beyond provided as
+ * an array.
+ *
+ * **Note:** This method is based on the
+ * [rest parameter](https://mdn.io/rest_parameters).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Function
+ * @param {Function} func The function to apply a rest parameter to.
+ * @param {number} [start=func.length-1] The start position of the rest parameter.
+ * @returns {Function} Returns the new function.
+ * @example
+ *
+ * var say = _.rest(function(what, names) {
+ * return what + ' ' + _.initial(names).join(', ') +
+ * (_.size(names) > 1 ? ', & ' : '') + _.last(names);
+ * });
+ *
+ * say('hello', 'fred', 'barney', 'pebbles');
+ * // => 'hello fred, barney, & pebbles'
+ */
+ function rest(func, start) {
+ if (typeof func != 'function') {
+ throw new TypeError(FUNC_ERROR_TEXT);
+ }
+ start = start === undefined$1 ? start : toInteger(start);
+ return baseRest(func, start);
+ }
+
+ /**
+ * Creates a function that invokes `func` with the `this` binding of the
+ * create function and an array of arguments much like
+ * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply).
+ *
+ * **Note:** This method is based on the
+ * [spread operator](https://mdn.io/spread_operator).
+ *
+ * @static
+ * @memberOf _
+ * @since 3.2.0
+ * @category Function
+ * @param {Function} func The function to spread arguments over.
+ * @param {number} [start=0] The start position of the spread.
+ * @returns {Function} Returns the new function.
+ * @example
+ *
+ * var say = _.spread(function(who, what) {
+ * return who + ' says ' + what;
+ * });
+ *
+ * say(['fred', 'hello']);
+ * // => 'fred says hello'
+ *
+ * var numbers = Promise.all([
+ * Promise.resolve(40),
+ * Promise.resolve(36)
+ * ]);
+ *
+ * numbers.then(_.spread(function(x, y) {
+ * return x + y;
+ * }));
+ * // => a Promise of 76
+ */
+ function spread(func, start) {
+ if (typeof func != 'function') {
+ throw new TypeError(FUNC_ERROR_TEXT);
+ }
+ start = start == null ? 0 : nativeMax(toInteger(start), 0);
+ return baseRest(function(args) {
+ var array = args[start],
+ otherArgs = castSlice(args, 0, start);
+
+ if (array) {
+ arrayPush(otherArgs, array);
+ }
+ return apply(func, this, otherArgs);
+ });
+ }
+
+ /**
+ * Creates a throttled function that only invokes `func` at most once per
+ * every `wait` milliseconds. The throttled function comes with a `cancel`
+ * method to cancel delayed `func` invocations and a `flush` method to
+ * immediately invoke them. Provide `options` to indicate whether `func`
+ * should be invoked on the leading and/or trailing edge of the `wait`
+ * timeout. The `func` is invoked with the last arguments provided to the
+ * throttled function. Subsequent calls to the throttled function return the
+ * result of the last `func` invocation.
+ *
+ * **Note:** If `leading` and `trailing` options are `true`, `func` is
+ * invoked on the trailing edge of the timeout only if the throttled function
+ * is invoked more than once during the `wait` timeout.
+ *
+ * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
+ * until to the next tick, similar to `setTimeout` with a timeout of `0`.
+ *
+ * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
+ * for details over the differences between `_.throttle` and `_.debounce`.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Function
+ * @param {Function} func The function to throttle.
+ * @param {number} [wait=0] The number of milliseconds to throttle invocations to.
+ * @param {Object} [options={}] The options object.
+ * @param {boolean} [options.leading=true]
+ * Specify invoking on the leading edge of the timeout.
+ * @param {boolean} [options.trailing=true]
+ * Specify invoking on the trailing edge of the timeout.
+ * @returns {Function} Returns the new throttled function.
+ * @example
+ *
+ * // Avoid excessively updating the position while scrolling.
+ * jQuery(window).on('scroll', _.throttle(updatePosition, 100));
+ *
+ * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.
+ * var throttled = _.throttle(renewToken, 300000, { 'trailing': false });
+ * jQuery(element).on('click', throttled);
+ *
+ * // Cancel the trailing throttled invocation.
+ * jQuery(window).on('popstate', throttled.cancel);
+ */
+ function throttle(func, wait, options) {
+ var leading = true,
+ trailing = true;
+
+ if (typeof func != 'function') {
+ throw new TypeError(FUNC_ERROR_TEXT);
+ }
+ if (isObject(options)) {
+ leading = 'leading' in options ? !!options.leading : leading;
+ trailing =
+ 'trailing' in options ? !!options.trailing : trailing;
+ }
+ return debounce(func, wait, {
+ leading: leading,
+ maxWait: wait,
+ trailing: trailing,
+ });
+ }
+
+ /**
+ * Creates a function that accepts up to one argument, ignoring any
+ * additional arguments.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Function
+ * @param {Function} func The function to cap arguments for.
+ * @returns {Function} Returns the new capped function.
+ * @example
+ *
+ * _.map(['6', '8', '10'], _.unary(parseInt));
+ * // => [6, 8, 10]
+ */
+ function unary(func) {
+ return ary(func, 1);
+ }
+
+ /**
+ * Creates a function that provides `value` to `wrapper` as its first
+ * argument. Any additional arguments provided to the function are appended
+ * to those provided to the `wrapper`. The wrapper is invoked with the `this`
+ * binding of the created function.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Function
+ * @param {*} value The value to wrap.
+ * @param {Function} [wrapper=identity] The wrapper function.
+ * @returns {Function} Returns the new function.
+ * @example
+ *
+ * var p = _.wrap(_.escape, function(func, text) {
+ * return '' + func(text) + '
';
+ * });
+ *
+ * p('fred, barney, & pebbles');
+ * // => 'fred, barney, & pebbles
'
+ */
+ function wrap(value, wrapper) {
+ return partial(castFunction(wrapper), value);
+ }
+
+ /*------------------------------------------------------------------------*/
+
+ /**
+ * Casts `value` as an array if it's not one.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.4.0
+ * @category Lang
+ * @param {*} value The value to inspect.
+ * @returns {Array} Returns the cast array.
+ * @example
+ *
+ * _.castArray(1);
+ * // => [1]
+ *
+ * _.castArray({ 'a': 1 });
+ * // => [{ 'a': 1 }]
+ *
+ * _.castArray('abc');
+ * // => ['abc']
+ *
+ * _.castArray(null);
+ * // => [null]
+ *
+ * _.castArray(undefined);
+ * // => [undefined]
+ *
+ * _.castArray();
+ * // => []
+ *
+ * var array = [1, 2, 3];
+ * console.log(_.castArray(array) === array);
+ * // => true
+ */
+ function castArray() {
+ if (!arguments.length) {
+ return [];
+ }
+ var value = arguments[0];
+ return isArray(value) ? value : [value];
+ }
+
+ /**
+ * Creates a shallow clone of `value`.
+ *
+ * **Note:** This method is loosely based on the
+ * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)
+ * and supports cloning arrays, array buffers, booleans, date objects, maps,
+ * numbers, `Object` objects, regexes, sets, strings, symbols, and typed
+ * arrays. The own enumerable properties of `arguments` objects are cloned
+ * as plain objects. An empty object is returned for uncloneable values such
+ * as error objects, functions, DOM nodes, and WeakMaps.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to clone.
+ * @returns {*} Returns the cloned value.
+ * @see _.cloneDeep
+ * @example
+ *
+ * var objects = [{ 'a': 1 }, { 'b': 2 }];
+ *
+ * var shallow = _.clone(objects);
+ * console.log(shallow[0] === objects[0]);
+ * // => true
+ */
+ function clone(value) {
+ return baseClone(value, CLONE_SYMBOLS_FLAG);
+ }
+
+ /**
+ * This method is like `_.clone` except that it accepts `customizer` which
+ * is invoked to produce the cloned value. If `customizer` returns `undefined`,
+ * cloning is handled by the method instead. The `customizer` is invoked with
+ * up to four arguments; (value [, index|key, object, stack]).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to clone.
+ * @param {Function} [customizer] The function to customize cloning.
+ * @returns {*} Returns the cloned value.
+ * @see _.cloneDeepWith
+ * @example
+ *
+ * function customizer(value) {
+ * if (_.isElement(value)) {
+ * return value.cloneNode(false);
+ * }
+ * }
+ *
+ * var el = _.cloneWith(document.body, customizer);
+ *
+ * console.log(el === document.body);
+ * // => false
+ * console.log(el.nodeName);
+ * // => 'BODY'
+ * console.log(el.childNodes.length);
+ * // => 0
+ */
+ function cloneWith(value, customizer) {
+ customizer =
+ typeof customizer == 'function' ? customizer : undefined$1;
+ return baseClone(value, CLONE_SYMBOLS_FLAG, customizer);
+ }
+
+ /**
+ * This method is like `_.clone` except that it recursively clones `value`.
+ *
+ * @static
+ * @memberOf _
+ * @since 1.0.0
+ * @category Lang
+ * @param {*} value The value to recursively clone.
+ * @returns {*} Returns the deep cloned value.
+ * @see _.clone
+ * @example
+ *
+ * var objects = [{ 'a': 1 }, { 'b': 2 }];
+ *
+ * var deep = _.cloneDeep(objects);
+ * console.log(deep[0] === objects[0]);
+ * // => false
+ */
+ function cloneDeep(value) {
+ return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);
+ }
+
+ /**
+ * This method is like `_.cloneWith` except that it recursively clones `value`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to recursively clone.
+ * @param {Function} [customizer] The function to customize cloning.
+ * @returns {*} Returns the deep cloned value.
+ * @see _.cloneWith
+ * @example
+ *
+ * function customizer(value) {
+ * if (_.isElement(value)) {
+ * return value.cloneNode(true);
+ * }
+ * }
+ *
+ * var el = _.cloneDeepWith(document.body, customizer);
+ *
+ * console.log(el === document.body);
+ * // => false
+ * console.log(el.nodeName);
+ * // => 'BODY'
+ * console.log(el.childNodes.length);
+ * // => 20
+ */
+ function cloneDeepWith(value, customizer) {
+ customizer =
+ typeof customizer == 'function' ? customizer : undefined$1;
+ return baseClone(
+ value,
+ CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG,
+ customizer,
+ );
+ }
+
+ /**
+ * Checks if `object` conforms to `source` by invoking the predicate
+ * properties of `source` with the corresponding property values of `object`.
+ *
+ * **Note:** This method is equivalent to `_.conforms` when `source` is
+ * partially applied.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.14.0
+ * @category Lang
+ * @param {Object} object The object to inspect.
+ * @param {Object} source The object of property predicates to conform to.
+ * @returns {boolean} Returns `true` if `object` conforms, else `false`.
+ * @example
+ *
+ * var object = { 'a': 1, 'b': 2 };
+ *
+ * _.conformsTo(object, { 'b': function(n) { return n > 1; } });
+ * // => true
+ *
+ * _.conformsTo(object, { 'b': function(n) { return n > 2; } });
+ * // => false
+ */
+ function conformsTo(object, source) {
+ return (
+ source == null || baseConformsTo(object, source, keys(source))
+ );
+ }
+
+ /**
+ * Performs a
+ * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
+ * comparison between two values to determine if they are equivalent.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to compare.
+ * @param {*} other The other value to compare.
+ * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
+ * @example
+ *
+ * var object = { 'a': 1 };
+ * var other = { 'a': 1 };
+ *
+ * _.eq(object, object);
+ * // => true
+ *
+ * _.eq(object, other);
+ * // => false
+ *
+ * _.eq('a', 'a');
+ * // => true
+ *
+ * _.eq('a', Object('a'));
+ * // => false
+ *
+ * _.eq(NaN, NaN);
+ * // => true
+ */
+ function eq(value, other) {
+ return value === other || (value !== value && other !== other);
+ }
+
+ /**
+ * Checks if `value` is greater than `other`.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.9.0
+ * @category Lang
+ * @param {*} value The value to compare.
+ * @param {*} other The other value to compare.
+ * @returns {boolean} Returns `true` if `value` is greater than `other`,
+ * else `false`.
+ * @see _.lt
+ * @example
+ *
+ * _.gt(3, 1);
+ * // => true
+ *
+ * _.gt(3, 3);
+ * // => false
+ *
+ * _.gt(1, 3);
+ * // => false
+ */
+ var gt = createRelationalOperation(baseGt);
+
+ /**
+ * Checks if `value` is greater than or equal to `other`.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.9.0
+ * @category Lang
+ * @param {*} value The value to compare.
+ * @param {*} other The other value to compare.
+ * @returns {boolean} Returns `true` if `value` is greater than or equal to
+ * `other`, else `false`.
+ * @see _.lte
+ * @example
+ *
+ * _.gte(3, 1);
+ * // => true
+ *
+ * _.gte(3, 3);
+ * // => true
+ *
+ * _.gte(1, 3);
+ * // => false
+ */
+ var gte = createRelationalOperation(function(value, other) {
+ return value >= other;
+ });
+
+ /**
+ * Checks if `value` is likely an `arguments` object.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an `arguments` object,
+ * else `false`.
+ * @example
+ *
+ * _.isArguments(function() { return arguments; }());
+ * // => true
+ *
+ * _.isArguments([1, 2, 3]);
+ * // => false
+ */
+ var isArguments = baseIsArguments(
+ (function() {
+ return arguments;
+ })(),
+ )
+ ? baseIsArguments
+ : function(value) {
+ return (
+ isObjectLike(value) &&
+ hasOwnProperty.call(value, 'callee') &&
+ !propertyIsEnumerable.call(value, 'callee')
+ );
+ };
+
+ /**
+ * Checks if `value` is classified as an `Array` object.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an array, else `false`.
+ * @example
+ *
+ * _.isArray([1, 2, 3]);
+ * // => true
+ *
+ * _.isArray(document.body.children);
+ * // => false
+ *
+ * _.isArray('abc');
+ * // => false
+ *
+ * _.isArray(_.noop);
+ * // => false
+ */
+ var isArray = Array.isArray;
+
+ /**
+ * Checks if `value` is classified as an `ArrayBuffer` object.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.3.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.
+ * @example
+ *
+ * _.isArrayBuffer(new ArrayBuffer(2));
+ * // => true
+ *
+ * _.isArrayBuffer(new Array(2));
+ * // => false
+ */
+ var isArrayBuffer = nodeIsArrayBuffer
+ ? baseUnary(nodeIsArrayBuffer)
+ : baseIsArrayBuffer;
+
+ /**
+ * Checks if `value` is array-like. A value is considered array-like if it's
+ * not a function and has a `value.length` that's an integer greater than or
+ * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
+ * @example
+ *
+ * _.isArrayLike([1, 2, 3]);
+ * // => true
+ *
+ * _.isArrayLike(document.body.children);
+ * // => true
+ *
+ * _.isArrayLike('abc');
+ * // => true
+ *
+ * _.isArrayLike(_.noop);
+ * // => false
+ */
+ function isArrayLike(value) {
+ return (
+ value != null && isLength(value.length) && !isFunction(value)
+ );
+ }
+
+ /**
+ * This method is like `_.isArrayLike` except that it also checks if `value`
+ * is an object.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an array-like object,
+ * else `false`.
+ * @example
+ *
+ * _.isArrayLikeObject([1, 2, 3]);
+ * // => true
+ *
+ * _.isArrayLikeObject(document.body.children);
+ * // => true
+ *
+ * _.isArrayLikeObject('abc');
+ * // => false
+ *
+ * _.isArrayLikeObject(_.noop);
+ * // => false
+ */
+ function isArrayLikeObject(value) {
+ return isObjectLike(value) && isArrayLike(value);
+ }
+
+ /**
+ * Checks if `value` is classified as a boolean primitive or object.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a boolean, else `false`.
+ * @example
+ *
+ * _.isBoolean(false);
+ * // => true
+ *
+ * _.isBoolean(null);
+ * // => false
+ */
+ function isBoolean(value) {
+ return (
+ value === true ||
+ value === false ||
+ (isObjectLike(value) && baseGetTag(value) == boolTag)
+ );
+ }
+
+ /**
+ * Checks if `value` is a buffer.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.3.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.
+ * @example
+ *
+ * _.isBuffer(new Buffer(2));
+ * // => true
+ *
+ * _.isBuffer(new Uint8Array(2));
+ * // => false
+ */
+ var isBuffer = nativeIsBuffer || stubFalse;
+
+ /**
+ * Checks if `value` is classified as a `Date` object.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a date object, else `false`.
+ * @example
+ *
+ * _.isDate(new Date);
+ * // => true
+ *
+ * _.isDate('Mon April 23 2012');
+ * // => false
+ */
+ var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate;
+
+ /**
+ * Checks if `value` is likely a DOM element.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.
+ * @example
+ *
+ * _.isElement(document.body);
+ * // => true
+ *
+ * _.isElement('');
+ * // => false
+ */
+ function isElement(value) {
+ return (
+ isObjectLike(value) &&
+ value.nodeType === 1 &&
+ !isPlainObject(value)
+ );
+ }
+
+ /**
+ * Checks if `value` is an empty object, collection, map, or set.
+ *
+ * Objects are considered empty if they have no own enumerable string keyed
+ * properties.
+ *
+ * Array-like values such as `arguments` objects, arrays, buffers, strings, or
+ * jQuery-like collections are considered empty if they have a `length` of `0`.
+ * Similarly, maps and sets are considered empty if they have a `size` of `0`.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is empty, else `false`.
+ * @example
+ *
+ * _.isEmpty(null);
+ * // => true
+ *
+ * _.isEmpty(true);
+ * // => true
+ *
+ * _.isEmpty(1);
+ * // => true
+ *
+ * _.isEmpty([1, 2, 3]);
+ * // => false
+ *
+ * _.isEmpty({ 'a': 1 });
+ * // => false
+ */
+ function isEmpty(value) {
+ if (value == null) {
+ return true;
+ }
+ if (
+ isArrayLike(value) &&
+ (isArray(value) ||
+ typeof value == 'string' ||
+ typeof value.splice == 'function' ||
+ isBuffer(value) ||
+ isTypedArray(value) ||
+ isArguments(value))
+ ) {
+ return !value.length;
+ }
+ var tag = getTag(value);
+ if (tag == mapTag || tag == setTag) {
+ return !value.size;
+ }
+ if (isPrototype(value)) {
+ return !baseKeys(value).length;
+ }
+ for (var key in value) {
+ if (hasOwnProperty.call(value, key)) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ /**
+ * Performs a deep comparison between two values to determine if they are
+ * equivalent.
+ *
+ * **Note:** This method supports comparing arrays, array buffers, booleans,
+ * date objects, error objects, maps, numbers, `Object` objects, regexes,
+ * sets, strings, symbols, and typed arrays. `Object` objects are compared
+ * by their own, not inherited, enumerable properties. Functions and DOM
+ * nodes are compared by strict equality, i.e. `===`.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to compare.
+ * @param {*} other The other value to compare.
+ * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
+ * @example
+ *
+ * var object = { 'a': 1 };
+ * var other = { 'a': 1 };
+ *
+ * _.isEqual(object, other);
+ * // => true
+ *
+ * object === other;
+ * // => false
+ */
+ function isEqual(value, other) {
+ return baseIsEqual(value, other);
+ }
+
+ /**
+ * This method is like `_.isEqual` except that it accepts `customizer` which
+ * is invoked to compare values. If `customizer` returns `undefined`, comparisons
+ * are handled by the method instead. The `customizer` is invoked with up to
+ * six arguments: (objValue, othValue [, index|key, object, other, stack]).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to compare.
+ * @param {*} other The other value to compare.
+ * @param {Function} [customizer] The function to customize comparisons.
+ * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
+ * @example
+ *
+ * function isGreeting(value) {
+ * return /^h(?:i|ello)$/.test(value);
+ * }
+ *
+ * function customizer(objValue, othValue) {
+ * if (isGreeting(objValue) && isGreeting(othValue)) {
+ * return true;
+ * }
+ * }
+ *
+ * var array = ['hello', 'goodbye'];
+ * var other = ['hi', 'goodbye'];
+ *
+ * _.isEqualWith(array, other, customizer);
+ * // => true
+ */
+ function isEqualWith(value, other, customizer) {
+ customizer =
+ typeof customizer == 'function' ? customizer : undefined$1;
+ var result = customizer ? customizer(value, other) : undefined$1;
+ return result === undefined$1
+ ? baseIsEqual(value, other, undefined$1, customizer)
+ : !!result;
+ }
+
+ /**
+ * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,
+ * `SyntaxError`, `TypeError`, or `URIError` object.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an error object, else `false`.
+ * @example
+ *
+ * _.isError(new Error);
+ * // => true
+ *
+ * _.isError(Error);
+ * // => false
+ */
+ function isError(value) {
+ if (!isObjectLike(value)) {
+ return false;
+ }
+ var tag = baseGetTag(value);
+ return (
+ tag == errorTag ||
+ tag == domExcTag ||
+ (typeof value.message == 'string' &&
+ typeof value.name == 'string' &&
+ !isPlainObject(value))
+ );
+ }
+
+ /**
+ * Checks if `value` is a finite primitive number.
+ *
+ * **Note:** This method is based on
+ * [`Number.isFinite`](https://mdn.io/Number/isFinite).
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.
+ * @example
+ *
+ * _.isFinite(3);
+ * // => true
+ *
+ * _.isFinite(Number.MIN_VALUE);
+ * // => true
+ *
+ * _.isFinite(Infinity);
+ * // => false
+ *
+ * _.isFinite('3');
+ * // => false
+ */
+ function isFinite(value) {
+ return typeof value == 'number' && nativeIsFinite(value);
+ }
+
+ /**
+ * Checks if `value` is classified as a `Function` object.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a function, else `false`.
+ * @example
+ *
+ * _.isFunction(_);
+ * // => true
+ *
+ * _.isFunction(/abc/);
+ * // => false
+ */
+ function isFunction(value) {
+ if (!isObject(value)) {
+ return false;
+ }
+ // The use of `Object#toString` avoids issues with the `typeof` operator
+ // in Safari 9 which returns 'object' for typed arrays and other constructors.
+ var tag = baseGetTag(value);
+ return (
+ tag == funcTag ||
+ tag == genTag ||
+ tag == asyncTag ||
+ tag == proxyTag
+ );
+ }
+
+ /**
+ * Checks if `value` is an integer.
+ *
+ * **Note:** This method is based on
+ * [`Number.isInteger`](https://mdn.io/Number/isInteger).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an integer, else `false`.
+ * @example
+ *
+ * _.isInteger(3);
+ * // => true
+ *
+ * _.isInteger(Number.MIN_VALUE);
+ * // => false
+ *
+ * _.isInteger(Infinity);
+ * // => false
+ *
+ * _.isInteger('3');
+ * // => false
+ */
+ function isInteger(value) {
+ return typeof value == 'number' && value == toInteger(value);
+ }
+
+ /**
+ * Checks if `value` is a valid array-like length.
+ *
+ * **Note:** This method is loosely based on
+ * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
+ * @example
+ *
+ * _.isLength(3);
+ * // => true
+ *
+ * _.isLength(Number.MIN_VALUE);
+ * // => false
+ *
+ * _.isLength(Infinity);
+ * // => false
+ *
+ * _.isLength('3');
+ * // => false
+ */
+ function isLength(value) {
+ return (
+ typeof value == 'number' &&
+ value > -1 &&
+ value % 1 == 0 &&
+ value <= MAX_SAFE_INTEGER
+ );
+ }
+
+ /**
+ * Checks if `value` is the
+ * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
+ * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an object, else `false`.
+ * @example
+ *
+ * _.isObject({});
+ * // => true
+ *
+ * _.isObject([1, 2, 3]);
+ * // => true
+ *
+ * _.isObject(_.noop);
+ * // => true
+ *
+ * _.isObject(null);
+ * // => false
+ */
+ function isObject(value) {
+ var type = typeof value;
+ return value != null && (type == 'object' || type == 'function');
+ }
+
+ /**
+ * Checks if `value` is object-like. A value is object-like if it's not `null`
+ * and has a `typeof` result of "object".
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
+ * @example
+ *
+ * _.isObjectLike({});
+ * // => true
+ *
+ * _.isObjectLike([1, 2, 3]);
+ * // => true
+ *
+ * _.isObjectLike(_.noop);
+ * // => false
+ *
+ * _.isObjectLike(null);
+ * // => false
+ */
+ function isObjectLike(value) {
+ return value != null && typeof value == 'object';
+ }
+
+ /**
+ * Checks if `value` is classified as a `Map` object.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.3.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a map, else `false`.
+ * @example
+ *
+ * _.isMap(new Map);
+ * // => true
+ *
+ * _.isMap(new WeakMap);
+ * // => false
+ */
+ var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap;
+
+ /**
+ * Performs a partial deep comparison between `object` and `source` to
+ * determine if `object` contains equivalent property values.
+ *
+ * **Note:** This method is equivalent to `_.matches` when `source` is
+ * partially applied.
+ *
+ * Partial comparisons will match empty array and empty object `source`
+ * values against any array or object value, respectively. See `_.isEqual`
+ * for a list of supported value comparisons.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Lang
+ * @param {Object} object The object to inspect.
+ * @param {Object} source The object of property values to match.
+ * @returns {boolean} Returns `true` if `object` is a match, else `false`.
+ * @example
+ *
+ * var object = { 'a': 1, 'b': 2 };
+ *
+ * _.isMatch(object, { 'b': 2 });
+ * // => true
+ *
+ * _.isMatch(object, { 'b': 1 });
+ * // => false
+ */
+ function isMatch(object, source) {
+ return (
+ object === source ||
+ baseIsMatch(object, source, getMatchData(source))
+ );
+ }
+
+ /**
+ * This method is like `_.isMatch` except that it accepts `customizer` which
+ * is invoked to compare values. If `customizer` returns `undefined`, comparisons
+ * are handled by the method instead. The `customizer` is invoked with five
+ * arguments: (objValue, srcValue, index|key, object, source).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {Object} object The object to inspect.
+ * @param {Object} source The object of property values to match.
+ * @param {Function} [customizer] The function to customize comparisons.
+ * @returns {boolean} Returns `true` if `object` is a match, else `false`.
+ * @example
+ *
+ * function isGreeting(value) {
+ * return /^h(?:i|ello)$/.test(value);
+ * }
+ *
+ * function customizer(objValue, srcValue) {
+ * if (isGreeting(objValue) && isGreeting(srcValue)) {
+ * return true;
+ * }
+ * }
+ *
+ * var object = { 'greeting': 'hello' };
+ * var source = { 'greeting': 'hi' };
+ *
+ * _.isMatchWith(object, source, customizer);
+ * // => true
+ */
+ function isMatchWith(object, source, customizer) {
+ customizer =
+ typeof customizer == 'function' ? customizer : undefined$1;
+ return baseIsMatch(
+ object,
+ source,
+ getMatchData(source),
+ customizer,
+ );
+ }
+
+ /**
+ * Checks if `value` is `NaN`.
+ *
+ * **Note:** This method is based on
+ * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as
+ * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for
+ * `undefined` and other non-number values.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
+ * @example
+ *
+ * _.isNaN(NaN);
+ * // => true
+ *
+ * _.isNaN(new Number(NaN));
+ * // => true
+ *
+ * isNaN(undefined);
+ * // => true
+ *
+ * _.isNaN(undefined);
+ * // => false
+ */
+ function isNaN(value) {
+ // An `NaN` primitive is the only value that is not equal to itself.
+ // Perform the `toStringTag` check first to avoid errors with some
+ // ActiveX objects in IE.
+ return isNumber(value) && value != +value;
+ }
+
+ /**
+ * Checks if `value` is a pristine native function.
+ *
+ * **Note:** This method can't reliably detect native functions in the presence
+ * of the core-js package because core-js circumvents this kind of detection.
+ * Despite multiple requests, the core-js maintainer has made it clear: any
+ * attempt to fix the detection will be obstructed. As a result, we're left
+ * with little choice but to throw an error. Unfortunately, this also affects
+ * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill),
+ * which rely on core-js.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a native function,
+ * else `false`.
+ * @example
+ *
+ * _.isNative(Array.prototype.push);
+ * // => true
+ *
+ * _.isNative(_);
+ * // => false
+ */
+ function isNative(value) {
+ if (isMaskable(value)) {
+ throw new Error(CORE_ERROR_TEXT);
+ }
+ return baseIsNative(value);
+ }
+
+ /**
+ * Checks if `value` is `null`.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is `null`, else `false`.
+ * @example
+ *
+ * _.isNull(null);
+ * // => true
+ *
+ * _.isNull(void 0);
+ * // => false
+ */
+ function isNull(value) {
+ return value === null;
+ }
+
+ /**
+ * Checks if `value` is `null` or `undefined`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is nullish, else `false`.
+ * @example
+ *
+ * _.isNil(null);
+ * // => true
+ *
+ * _.isNil(void 0);
+ * // => true
+ *
+ * _.isNil(NaN);
+ * // => false
+ */
+ function isNil(value) {
+ return value == null;
+ }
+
+ /**
+ * Checks if `value` is classified as a `Number` primitive or object.
+ *
+ * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are
+ * classified as numbers, use the `_.isFinite` method.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a number, else `false`.
+ * @example
+ *
+ * _.isNumber(3);
+ * // => true
+ *
+ * _.isNumber(Number.MIN_VALUE);
+ * // => true
+ *
+ * _.isNumber(Infinity);
+ * // => true
+ *
+ * _.isNumber('3');
+ * // => false
+ */
+ function isNumber(value) {
+ return (
+ typeof value == 'number' ||
+ (isObjectLike(value) && baseGetTag(value) == numberTag)
+ );
+ }
+
+ /**
+ * Checks if `value` is a plain object, that is, an object created by the
+ * `Object` constructor or one with a `[[Prototype]]` of `null`.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.8.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
+ * @example
+ *
+ * function Foo() {
+ * this.a = 1;
+ * }
+ *
+ * _.isPlainObject(new Foo);
+ * // => false
+ *
+ * _.isPlainObject([1, 2, 3]);
+ * // => false
+ *
+ * _.isPlainObject({ 'x': 0, 'y': 0 });
+ * // => true
+ *
+ * _.isPlainObject(Object.create(null));
+ * // => true
+ */
+ function isPlainObject(value) {
+ if (!isObjectLike(value) || baseGetTag(value) != objectTag) {
+ return false;
+ }
+ var proto = getPrototype(value);
+ if (proto === null) {
+ return true;
+ }
+ var Ctor =
+ hasOwnProperty.call(proto, 'constructor') && proto.constructor;
+ return (
+ typeof Ctor == 'function' &&
+ Ctor instanceof Ctor &&
+ funcToString.call(Ctor) == objectCtorString
+ );
+ }
+
+ /**
+ * Checks if `value` is classified as a `RegExp` object.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
+ * @example
+ *
+ * _.isRegExp(/abc/);
+ * // => true
+ *
+ * _.isRegExp('/abc/');
+ * // => false
+ */
+ var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp;
+
+ /**
+ * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754
+ * double precision number which isn't the result of a rounded unsafe integer.
+ *
+ * **Note:** This method is based on
+ * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`.
+ * @example
+ *
+ * _.isSafeInteger(3);
+ * // => true
+ *
+ * _.isSafeInteger(Number.MIN_VALUE);
+ * // => false
+ *
+ * _.isSafeInteger(Infinity);
+ * // => false
+ *
+ * _.isSafeInteger('3');
+ * // => false
+ */
+ function isSafeInteger(value) {
+ return (
+ isInteger(value) &&
+ value >= -MAX_SAFE_INTEGER &&
+ value <= MAX_SAFE_INTEGER
+ );
+ }
+
+ /**
+ * Checks if `value` is classified as a `Set` object.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.3.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a set, else `false`.
+ * @example
+ *
+ * _.isSet(new Set);
+ * // => true
+ *
+ * _.isSet(new WeakSet);
+ * // => false
+ */
+ var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet;
+
+ /**
+ * Checks if `value` is classified as a `String` primitive or object.
+ *
+ * @static
+ * @since 0.1.0
+ * @memberOf _
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a string, else `false`.
+ * @example
+ *
+ * _.isString('abc');
+ * // => true
+ *
+ * _.isString(1);
+ * // => false
+ */
+ function isString(value) {
+ return (
+ typeof value == 'string' ||
+ (!isArray(value) &&
+ isObjectLike(value) &&
+ baseGetTag(value) == stringTag)
+ );
+ }
+
+ /**
+ * Checks if `value` is classified as a `Symbol` primitive or object.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.
+ * @example
+ *
+ * _.isSymbol(Symbol.iterator);
+ * // => true
+ *
+ * _.isSymbol('abc');
+ * // => false
+ */
+ function isSymbol(value) {
+ return (
+ typeof value == 'symbol' ||
+ (isObjectLike(value) && baseGetTag(value) == symbolTag)
+ );
+ }
+
+ /**
+ * Checks if `value` is classified as a typed array.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
+ * @example
+ *
+ * _.isTypedArray(new Uint8Array);
+ * // => true
+ *
+ * _.isTypedArray([]);
+ * // => false
+ */
+ var isTypedArray = nodeIsTypedArray
+ ? baseUnary(nodeIsTypedArray)
+ : baseIsTypedArray;
+
+ /**
+ * Checks if `value` is `undefined`.
+ *
+ * @static
+ * @since 0.1.0
+ * @memberOf _
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.
+ * @example
+ *
+ * _.isUndefined(void 0);
+ * // => true
+ *
+ * _.isUndefined(null);
+ * // => false
+ */
+ function isUndefined(value) {
+ return value === undefined$1;
+ }
+
+ /**
+ * Checks if `value` is classified as a `WeakMap` object.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.3.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a weak map, else `false`.
+ * @example
+ *
+ * _.isWeakMap(new WeakMap);
+ * // => true
+ *
+ * _.isWeakMap(new Map);
+ * // => false
+ */
+ function isWeakMap(value) {
+ return isObjectLike(value) && getTag(value) == weakMapTag;
+ }
+
+ /**
+ * Checks if `value` is classified as a `WeakSet` object.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.3.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a weak set, else `false`.
+ * @example
+ *
+ * _.isWeakSet(new WeakSet);
+ * // => true
+ *
+ * _.isWeakSet(new Set);
+ * // => false
+ */
+ function isWeakSet(value) {
+ return isObjectLike(value) && baseGetTag(value) == weakSetTag;
+ }
+
+ /**
+ * Checks if `value` is less than `other`.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.9.0
+ * @category Lang
+ * @param {*} value The value to compare.
+ * @param {*} other The other value to compare.
+ * @returns {boolean} Returns `true` if `value` is less than `other`,
+ * else `false`.
+ * @see _.gt
+ * @example
+ *
+ * _.lt(1, 3);
+ * // => true
+ *
+ * _.lt(3, 3);
+ * // => false
+ *
+ * _.lt(3, 1);
+ * // => false
+ */
+ var lt = createRelationalOperation(baseLt);
+
+ /**
+ * Checks if `value` is less than or equal to `other`.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.9.0
+ * @category Lang
+ * @param {*} value The value to compare.
+ * @param {*} other The other value to compare.
+ * @returns {boolean} Returns `true` if `value` is less than or equal to
+ * `other`, else `false`.
+ * @see _.gte
+ * @example
+ *
+ * _.lte(1, 3);
+ * // => true
+ *
+ * _.lte(3, 3);
+ * // => true
+ *
+ * _.lte(3, 1);
+ * // => false
+ */
+ var lte = createRelationalOperation(function(value, other) {
+ return value <= other;
+ });
+
+ /**
+ * Converts `value` to an array.
+ *
+ * @static
+ * @since 0.1.0
+ * @memberOf _
+ * @category Lang
+ * @param {*} value The value to convert.
+ * @returns {Array} Returns the converted array.
+ * @example
+ *
+ * _.toArray({ 'a': 1, 'b': 2 });
+ * // => [1, 2]
+ *
+ * _.toArray('abc');
+ * // => ['a', 'b', 'c']
+ *
+ * _.toArray(1);
+ * // => []
+ *
+ * _.toArray(null);
+ * // => []
+ */
+ function toArray(value) {
+ if (!value) {
+ return [];
+ }
+ if (isArrayLike(value)) {
+ return isString(value)
+ ? stringToArray(value)
+ : copyArray(value);
+ }
+ if (symIterator && value[symIterator]) {
+ return iteratorToArray(value[symIterator]());
+ }
+ var tag = getTag(value),
+ func =
+ tag == mapTag
+ ? mapToArray
+ : tag == setTag
+ ? setToArray
+ : values;
+
+ return func(value);
+ }
+
+ /**
+ * Converts `value` to a finite number.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.12.0
+ * @category Lang
+ * @param {*} value The value to convert.
+ * @returns {number} Returns the converted number.
+ * @example
+ *
+ * _.toFinite(3.2);
+ * // => 3.2
+ *
+ * _.toFinite(Number.MIN_VALUE);
+ * // => 5e-324
+ *
+ * _.toFinite(Infinity);
+ * // => 1.7976931348623157e+308
+ *
+ * _.toFinite('3.2');
+ * // => 3.2
+ */
+ function toFinite(value) {
+ if (!value) {
+ return value === 0 ? value : 0;
+ }
+ value = toNumber(value);
+ if (value === INFINITY || value === -INFINITY) {
+ var sign = value < 0 ? -1 : 1;
+ return sign * MAX_INTEGER;
+ }
+ return value === value ? value : 0;
+ }
+
+ /**
+ * Converts `value` to an integer.
+ *
+ * **Note:** This method is loosely based on
+ * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to convert.
+ * @returns {number} Returns the converted integer.
+ * @example
+ *
+ * _.toInteger(3.2);
+ * // => 3
+ *
+ * _.toInteger(Number.MIN_VALUE);
+ * // => 0
+ *
+ * _.toInteger(Infinity);
+ * // => 1.7976931348623157e+308
+ *
+ * _.toInteger('3.2');
+ * // => 3
+ */
+ function toInteger(value) {
+ var result = toFinite(value),
+ remainder = result % 1;
+
+ return result === result
+ ? remainder
+ ? result - remainder
+ : result
+ : 0;
+ }
+
+ /**
+ * Converts `value` to an integer suitable for use as the length of an
+ * array-like object.
+ *
+ * **Note:** This method is based on
+ * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to convert.
+ * @returns {number} Returns the converted integer.
+ * @example
+ *
+ * _.toLength(3.2);
+ * // => 3
+ *
+ * _.toLength(Number.MIN_VALUE);
+ * // => 0
+ *
+ * _.toLength(Infinity);
+ * // => 4294967295
+ *
+ * _.toLength('3.2');
+ * // => 3
+ */
+ function toLength(value) {
+ return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0;
+ }
+
+ /**
+ * Converts `value` to a number.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to process.
+ * @returns {number} Returns the number.
+ * @example
+ *
+ * _.toNumber(3.2);
+ * // => 3.2
+ *
+ * _.toNumber(Number.MIN_VALUE);
+ * // => 5e-324
+ *
+ * _.toNumber(Infinity);
+ * // => Infinity
+ *
+ * _.toNumber('3.2');
+ * // => 3.2
+ */
+ function toNumber(value) {
+ if (typeof value == 'number') {
+ return value;
+ }
+ if (isSymbol(value)) {
+ return NAN;
+ }
+ if (isObject(value)) {
+ var other =
+ typeof value.valueOf == 'function'
+ ? value.valueOf()
+ : value;
+ value = isObject(other) ? other + '' : other;
+ }
+ if (typeof value != 'string') {
+ return value === 0 ? value : +value;
+ }
+ value = value.replace(reTrim, '');
+ var isBinary = reIsBinary.test(value);
+ return isBinary || reIsOctal.test(value)
+ ? freeParseInt(value.slice(2), isBinary ? 2 : 8)
+ : reIsBadHex.test(value)
+ ? NAN
+ : +value;
+ }
+
+ /**
+ * Converts `value` to a plain object flattening inherited enumerable string
+ * keyed properties of `value` to own properties of the plain object.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Lang
+ * @param {*} value The value to convert.
+ * @returns {Object} Returns the converted plain object.
+ * @example
+ *
+ * function Foo() {
+ * this.b = 2;
+ * }
+ *
+ * Foo.prototype.c = 3;
+ *
+ * _.assign({ 'a': 1 }, new Foo);
+ * // => { 'a': 1, 'b': 2 }
+ *
+ * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));
+ * // => { 'a': 1, 'b': 2, 'c': 3 }
+ */
+ function toPlainObject(value) {
+ return copyObject(value, keysIn(value));
+ }
+
+ /**
+ * Converts `value` to a safe integer. A safe integer can be compared and
+ * represented correctly.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to convert.
+ * @returns {number} Returns the converted integer.
+ * @example
+ *
+ * _.toSafeInteger(3.2);
+ * // => 3
+ *
+ * _.toSafeInteger(Number.MIN_VALUE);
+ * // => 0
+ *
+ * _.toSafeInteger(Infinity);
+ * // => 9007199254740991
+ *
+ * _.toSafeInteger('3.2');
+ * // => 3
+ */
+ function toSafeInteger(value) {
+ return value
+ ? baseClamp(
+ toInteger(value),
+ -MAX_SAFE_INTEGER,
+ MAX_SAFE_INTEGER,
+ )
+ : value === 0
+ ? value
+ : 0;
+ }
+
+ /**
+ * Converts `value` to a string. An empty string is returned for `null`
+ * and `undefined` values. The sign of `-0` is preserved.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to convert.
+ * @returns {string} Returns the converted string.
+ * @example
+ *
+ * _.toString(null);
+ * // => ''
+ *
+ * _.toString(-0);
+ * // => '-0'
+ *
+ * _.toString([1, 2, 3]);
+ * // => '1,2,3'
+ */
+ function toString(value) {
+ return value == null ? '' : baseToString(value);
+ }
+
+ /*------------------------------------------------------------------------*/
+
+ /**
+ * Assigns own enumerable string keyed properties of source objects to the
+ * destination object. Source objects are applied from left to right.
+ * Subsequent sources overwrite property assignments of previous sources.
+ *
+ * **Note:** This method mutates `object` and is loosely based on
+ * [`Object.assign`](https://mdn.io/Object/assign).
+ *
+ * @static
+ * @memberOf _
+ * @since 0.10.0
+ * @category Object
+ * @param {Object} object The destination object.
+ * @param {...Object} [sources] The source objects.
+ * @returns {Object} Returns `object`.
+ * @see _.assignIn
+ * @example
+ *
+ * function Foo() {
+ * this.a = 1;
+ * }
+ *
+ * function Bar() {
+ * this.c = 3;
+ * }
+ *
+ * Foo.prototype.b = 2;
+ * Bar.prototype.d = 4;
+ *
+ * _.assign({ 'a': 0 }, new Foo, new Bar);
+ * // => { 'a': 1, 'c': 3 }
+ */
+ var assign = createAssigner(function(object, source) {
+ if (isPrototype(source) || isArrayLike(source)) {
+ copyObject(source, keys(source), object);
+ return;
+ }
+ for (var key in source) {
+ if (hasOwnProperty.call(source, key)) {
+ assignValue(object, key, source[key]);
+ }
+ }
+ });
+
+ /**
+ * This method is like `_.assign` except that it iterates over own and
+ * inherited source properties.
+ *
+ * **Note:** This method mutates `object`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @alias extend
+ * @category Object
+ * @param {Object} object The destination object.
+ * @param {...Object} [sources] The source objects.
+ * @returns {Object} Returns `object`.
+ * @see _.assign
+ * @example
+ *
+ * function Foo() {
+ * this.a = 1;
+ * }
+ *
+ * function Bar() {
+ * this.c = 3;
+ * }
+ *
+ * Foo.prototype.b = 2;
+ * Bar.prototype.d = 4;
+ *
+ * _.assignIn({ 'a': 0 }, new Foo, new Bar);
+ * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }
+ */
+ var assignIn = createAssigner(function(object, source) {
+ copyObject(source, keysIn(source), object);
+ });
+
+ /**
+ * This method is like `_.assignIn` except that it accepts `customizer`
+ * which is invoked to produce the assigned values. If `customizer` returns
+ * `undefined`, assignment is handled by the method instead. The `customizer`
+ * is invoked with five arguments: (objValue, srcValue, key, object, source).
+ *
+ * **Note:** This method mutates `object`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @alias extendWith
+ * @category Object
+ * @param {Object} object The destination object.
+ * @param {...Object} sources The source objects.
+ * @param {Function} [customizer] The function to customize assigned values.
+ * @returns {Object} Returns `object`.
+ * @see _.assignWith
+ * @example
+ *
+ * function customizer(objValue, srcValue) {
+ * return _.isUndefined(objValue) ? srcValue : objValue;
+ * }
+ *
+ * var defaults = _.partialRight(_.assignInWith, customizer);
+ *
+ * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
+ * // => { 'a': 1, 'b': 2 }
+ */
+ var assignInWith = createAssigner(function(
+ object,
+ source,
+ srcIndex,
+ customizer,
+ ) {
+ copyObject(source, keysIn(source), object, customizer);
+ });
+
+ /**
+ * This method is like `_.assign` except that it accepts `customizer`
+ * which is invoked to produce the assigned values. If `customizer` returns
+ * `undefined`, assignment is handled by the method instead. The `customizer`
+ * is invoked with five arguments: (objValue, srcValue, key, object, source).
+ *
+ * **Note:** This method mutates `object`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Object
+ * @param {Object} object The destination object.
+ * @param {...Object} sources The source objects.
+ * @param {Function} [customizer] The function to customize assigned values.
+ * @returns {Object} Returns `object`.
+ * @see _.assignInWith
+ * @example
+ *
+ * function customizer(objValue, srcValue) {
+ * return _.isUndefined(objValue) ? srcValue : objValue;
+ * }
+ *
+ * var defaults = _.partialRight(_.assignWith, customizer);
+ *
+ * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
+ * // => { 'a': 1, 'b': 2 }
+ */
+ var assignWith = createAssigner(function(
+ object,
+ source,
+ srcIndex,
+ customizer,
+ ) {
+ copyObject(source, keys(source), object, customizer);
+ });
+
+ /**
+ * Creates an array of values corresponding to `paths` of `object`.
+ *
+ * @static
+ * @memberOf _
+ * @since 1.0.0
+ * @category Object
+ * @param {Object} object The object to iterate over.
+ * @param {...(string|string[])} [paths] The property paths to pick.
+ * @returns {Array} Returns the picked values.
+ * @example
+ *
+ * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };
+ *
+ * _.at(object, ['a[0].b.c', 'a[1]']);
+ * // => [3, 4]
+ */
+ var at = flatRest(baseAt);
+
+ /**
+ * Creates an object that inherits from the `prototype` object. If a
+ * `properties` object is given, its own enumerable string keyed properties
+ * are assigned to the created object.
+ *
+ * @static
+ * @memberOf _
+ * @since 2.3.0
+ * @category Object
+ * @param {Object} prototype The object to inherit from.
+ * @param {Object} [properties] The properties to assign to the object.
+ * @returns {Object} Returns the new object.
+ * @example
+ *
+ * function Shape() {
+ * this.x = 0;
+ * this.y = 0;
+ * }
+ *
+ * function Circle() {
+ * Shape.call(this);
+ * }
+ *
+ * Circle.prototype = _.create(Shape.prototype, {
+ * 'constructor': Circle
+ * });
+ *
+ * var circle = new Circle;
+ * circle instanceof Circle;
+ * // => true
+ *
+ * circle instanceof Shape;
+ * // => true
+ */
+ function create(prototype, properties) {
+ var result = baseCreate(prototype);
+ return properties == null ? result : baseAssign(result, properties);
+ }
+
+ /**
+ * Assigns own and inherited enumerable string keyed properties of source
+ * objects to the destination object for all destination properties that
+ * resolve to `undefined`. Source objects are applied from left to right.
+ * Once a property is set, additional values of the same property are ignored.
+ *
+ * **Note:** This method mutates `object`.
+ *
+ * @static
+ * @since 0.1.0
+ * @memberOf _
+ * @category Object
+ * @param {Object} object The destination object.
+ * @param {...Object} [sources] The source objects.
+ * @returns {Object} Returns `object`.
+ * @see _.defaultsDeep
+ * @example
+ *
+ * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
+ * // => { 'a': 1, 'b': 2 }
+ */
+ var defaults = baseRest(function(object, sources) {
+ object = Object(object);
+
+ var index = -1;
+ var length = sources.length;
+ var guard = length > 2 ? sources[2] : undefined$1;
+
+ if (guard && isIterateeCall(sources[0], sources[1], guard)) {
+ length = 1;
+ }
+
+ while (++index < length) {
+ var source = sources[index];
+ var props = keysIn(source);
+ var propsIndex = -1;
+ var propsLength = props.length;
+
+ while (++propsIndex < propsLength) {
+ var key = props[propsIndex];
+ var value = object[key];
+
+ if (
+ value === undefined$1 ||
+ (eq(value, objectProto[key]) &&
+ !hasOwnProperty.call(object, key))
+ ) {
+ object[key] = source[key];
+ }
+ }
+ }
+
+ return object;
+ });
+
+ /**
+ * This method is like `_.defaults` except that it recursively assigns
+ * default properties.
+ *
+ * **Note:** This method mutates `object`.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.10.0
+ * @category Object
+ * @param {Object} object The destination object.
+ * @param {...Object} [sources] The source objects.
+ * @returns {Object} Returns `object`.
+ * @see _.defaults
+ * @example
+ *
+ * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } });
+ * // => { 'a': { 'b': 2, 'c': 3 } }
+ */
+ var defaultsDeep = baseRest(function(args) {
+ args.push(undefined$1, customDefaultsMerge);
+ return apply(mergeWith, undefined$1, args);
+ });
+
+ /**
+ * This method is like `_.find` except that it returns the key of the first
+ * element `predicate` returns truthy for instead of the element itself.
+ *
+ * @static
+ * @memberOf _
+ * @since 1.1.0
+ * @category Object
+ * @param {Object} object The object to inspect.
+ * @param {Function} [predicate=_.identity] The function invoked per iteration.
+ * @returns {string|undefined} Returns the key of the matched element,
+ * else `undefined`.
+ * @example
+ *
+ * var users = {
+ * 'barney': { 'age': 36, 'active': true },
+ * 'fred': { 'age': 40, 'active': false },
+ * 'pebbles': { 'age': 1, 'active': true }
+ * };
+ *
+ * _.findKey(users, function(o) { return o.age < 40; });
+ * // => 'barney' (iteration order is not guaranteed)
+ *
+ * // The `_.matches` iteratee shorthand.
+ * _.findKey(users, { 'age': 1, 'active': true });
+ * // => 'pebbles'
+ *
+ * // The `_.matchesProperty` iteratee shorthand.
+ * _.findKey(users, ['active', false]);
+ * // => 'fred'
+ *
+ * // The `_.property` iteratee shorthand.
+ * _.findKey(users, 'active');
+ * // => 'barney'
+ */
+ function findKey(object, predicate) {
+ return baseFindKey(object, getIteratee(predicate, 3), baseForOwn);
+ }
+
+ /**
+ * This method is like `_.findKey` except that it iterates over elements of
+ * a collection in the opposite order.
+ *
+ * @static
+ * @memberOf _
+ * @since 2.0.0
+ * @category Object
+ * @param {Object} object The object to inspect.
+ * @param {Function} [predicate=_.identity] The function invoked per iteration.
+ * @returns {string|undefined} Returns the key of the matched element,
+ * else `undefined`.
+ * @example
+ *
+ * var users = {
+ * 'barney': { 'age': 36, 'active': true },
+ * 'fred': { 'age': 40, 'active': false },
+ * 'pebbles': { 'age': 1, 'active': true }
+ * };
+ *
+ * _.findLastKey(users, function(o) { return o.age < 40; });
+ * // => returns 'pebbles' assuming `_.findKey` returns 'barney'
+ *
+ * // The `_.matches` iteratee shorthand.
+ * _.findLastKey(users, { 'age': 36, 'active': true });
+ * // => 'barney'
+ *
+ * // The `_.matchesProperty` iteratee shorthand.
+ * _.findLastKey(users, ['active', false]);
+ * // => 'fred'
+ *
+ * // The `_.property` iteratee shorthand.
+ * _.findLastKey(users, 'active');
+ * // => 'pebbles'
+ */
+ function findLastKey(object, predicate) {
+ return baseFindKey(
+ object,
+ getIteratee(predicate, 3),
+ baseForOwnRight,
+ );
+ }
+
+ /**
+ * Iterates over own and inherited enumerable string keyed properties of an
+ * object and invokes `iteratee` for each property. The iteratee is invoked
+ * with three arguments: (value, key, object). Iteratee functions may exit
+ * iteration early by explicitly returning `false`.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.3.0
+ * @category Object
+ * @param {Object} object The object to iterate over.
+ * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+ * @returns {Object} Returns `object`.
+ * @see _.forInRight
+ * @example
+ *
+ * function Foo() {
+ * this.a = 1;
+ * this.b = 2;
+ * }
+ *
+ * Foo.prototype.c = 3;
+ *
+ * _.forIn(new Foo, function(value, key) {
+ * console.log(key);
+ * });
+ * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).
+ */
+ function forIn(object, iteratee) {
+ return object == null
+ ? object
+ : baseFor(object, getIteratee(iteratee, 3), keysIn);
+ }
+
+ /**
+ * This method is like `_.forIn` except that it iterates over properties of
+ * `object` in the opposite order.
+ *
+ * @static
+ * @memberOf _
+ * @since 2.0.0
+ * @category Object
+ * @param {Object} object The object to iterate over.
+ * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+ * @returns {Object} Returns `object`.
+ * @see _.forIn
+ * @example
+ *
+ * function Foo() {
+ * this.a = 1;
+ * this.b = 2;
+ * }
+ *
+ * Foo.prototype.c = 3;
+ *
+ * _.forInRight(new Foo, function(value, key) {
+ * console.log(key);
+ * });
+ * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'.
+ */
+ function forInRight(object, iteratee) {
+ return object == null
+ ? object
+ : baseForRight(object, getIteratee(iteratee, 3), keysIn);
+ }
+
+ /**
+ * Iterates over own enumerable string keyed properties of an object and
+ * invokes `iteratee` for each property. The iteratee is invoked with three
+ * arguments: (value, key, object). Iteratee functions may exit iteration
+ * early by explicitly returning `false`.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.3.0
+ * @category Object
+ * @param {Object} object The object to iterate over.
+ * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+ * @returns {Object} Returns `object`.
+ * @see _.forOwnRight
+ * @example
+ *
+ * function Foo() {
+ * this.a = 1;
+ * this.b = 2;
+ * }
+ *
+ * Foo.prototype.c = 3;
+ *
+ * _.forOwn(new Foo, function(value, key) {
+ * console.log(key);
+ * });
+ * // => Logs 'a' then 'b' (iteration order is not guaranteed).
+ */
+ function forOwn(object, iteratee) {
+ return object && baseForOwn(object, getIteratee(iteratee, 3));
+ }
+
+ /**
+ * This method is like `_.forOwn` except that it iterates over properties of
+ * `object` in the opposite order.
+ *
+ * @static
+ * @memberOf _
+ * @since 2.0.0
+ * @category Object
+ * @param {Object} object The object to iterate over.
+ * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+ * @returns {Object} Returns `object`.
+ * @see _.forOwn
+ * @example
+ *
+ * function Foo() {
+ * this.a = 1;
+ * this.b = 2;
+ * }
+ *
+ * Foo.prototype.c = 3;
+ *
+ * _.forOwnRight(new Foo, function(value, key) {
+ * console.log(key);
+ * });
+ * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'.
+ */
+ function forOwnRight(object, iteratee) {
+ return object && baseForOwnRight(object, getIteratee(iteratee, 3));
+ }
+
+ /**
+ * Creates an array of function property names from own enumerable properties
+ * of `object`.
+ *
+ * @static
+ * @since 0.1.0
+ * @memberOf _
+ * @category Object
+ * @param {Object} object The object to inspect.
+ * @returns {Array} Returns the function names.
+ * @see _.functionsIn
+ * @example
+ *
+ * function Foo() {
+ * this.a = _.constant('a');
+ * this.b = _.constant('b');
+ * }
+ *
+ * Foo.prototype.c = _.constant('c');
+ *
+ * _.functions(new Foo);
+ * // => ['a', 'b']
+ */
+ function functions(object) {
+ return object == null ? [] : baseFunctions(object, keys(object));
+ }
+
+ /**
+ * Creates an array of function property names from own and inherited
+ * enumerable properties of `object`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Object
+ * @param {Object} object The object to inspect.
+ * @returns {Array} Returns the function names.
+ * @see _.functions
+ * @example
+ *
+ * function Foo() {
+ * this.a = _.constant('a');
+ * this.b = _.constant('b');
+ * }
+ *
+ * Foo.prototype.c = _.constant('c');
+ *
+ * _.functionsIn(new Foo);
+ * // => ['a', 'b', 'c']
+ */
+ function functionsIn(object) {
+ return object == null ? [] : baseFunctions(object, keysIn(object));
+ }
+
+ /**
+ * Gets the value at `path` of `object`. If the resolved value is
+ * `undefined`, the `defaultValue` is returned in its place.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.7.0
+ * @category Object
+ * @param {Object} object The object to query.
+ * @param {Array|string} path The path of the property to get.
+ * @param {*} [defaultValue] The value returned for `undefined` resolved values.
+ * @returns {*} Returns the resolved value.
+ * @example
+ *
+ * var object = { 'a': [{ 'b': { 'c': 3 } }] };
+ *
+ * _.get(object, 'a[0].b.c');
+ * // => 3
+ *
+ * _.get(object, ['a', '0', 'b', 'c']);
+ * // => 3
+ *
+ * _.get(object, 'a.b.c', 'default');
+ * // => 'default'
+ */
+ function get(object, path, defaultValue) {
+ var result = object == null ? undefined$1 : baseGet(object, path);
+ return result === undefined$1 ? defaultValue : result;
+ }
+
+ /**
+ * Checks if `path` is a direct property of `object`.
+ *
+ * @static
+ * @since 0.1.0
+ * @memberOf _
+ * @category Object
+ * @param {Object} object The object to query.
+ * @param {Array|string} path The path to check.
+ * @returns {boolean} Returns `true` if `path` exists, else `false`.
+ * @example
+ *
+ * var object = { 'a': { 'b': 2 } };
+ * var other = _.create({ 'a': _.create({ 'b': 2 }) });
+ *
+ * _.has(object, 'a');
+ * // => true
+ *
+ * _.has(object, 'a.b');
+ * // => true
+ *
+ * _.has(object, ['a', 'b']);
+ * // => true
+ *
+ * _.has(other, 'a');
+ * // => false
+ */
+ function has(object, path) {
+ return object != null && hasPath(object, path, baseHas);
+ }
+
+ /**
+ * Checks if `path` is a direct or inherited property of `object`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Object
+ * @param {Object} object The object to query.
+ * @param {Array|string} path The path to check.
+ * @returns {boolean} Returns `true` if `path` exists, else `false`.
+ * @example
+ *
+ * var object = _.create({ 'a': _.create({ 'b': 2 }) });
+ *
+ * _.hasIn(object, 'a');
+ * // => true
+ *
+ * _.hasIn(object, 'a.b');
+ * // => true
+ *
+ * _.hasIn(object, ['a', 'b']);
+ * // => true
+ *
+ * _.hasIn(object, 'b');
+ * // => false
+ */
+ function hasIn(object, path) {
+ return object != null && hasPath(object, path, baseHasIn);
+ }
+
+ /**
+ * Creates an object composed of the inverted keys and values of `object`.
+ * If `object` contains duplicate values, subsequent values overwrite
+ * property assignments of previous values.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.7.0
+ * @category Object
+ * @param {Object} object The object to invert.
+ * @returns {Object} Returns the new inverted object.
+ * @example
+ *
+ * var object = { 'a': 1, 'b': 2, 'c': 1 };
+ *
+ * _.invert(object);
+ * // => { '1': 'c', '2': 'b' }
+ */
+ var invert = createInverter(function(result, value, key) {
+ if (value != null && typeof value.toString != 'function') {
+ value = nativeObjectToString.call(value);
+ }
+
+ result[value] = key;
+ }, constant(identity));
+
+ /**
+ * This method is like `_.invert` except that the inverted object is generated
+ * from the results of running each element of `object` thru `iteratee`. The
+ * corresponding inverted value of each inverted key is an array of keys
+ * responsible for generating the inverted value. The iteratee is invoked
+ * with one argument: (value).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.1.0
+ * @category Object
+ * @param {Object} object The object to invert.
+ * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
+ * @returns {Object} Returns the new inverted object.
+ * @example
+ *
+ * var object = { 'a': 1, 'b': 2, 'c': 1 };
+ *
+ * _.invertBy(object);
+ * // => { '1': ['a', 'c'], '2': ['b'] }
+ *
+ * _.invertBy(object, function(value) {
+ * return 'group' + value;
+ * });
+ * // => { 'group1': ['a', 'c'], 'group2': ['b'] }
+ */
+ var invertBy = createInverter(function(result, value, key) {
+ if (value != null && typeof value.toString != 'function') {
+ value = nativeObjectToString.call(value);
+ }
+
+ if (hasOwnProperty.call(result, value)) {
+ result[value].push(key);
+ } else {
+ result[value] = [key];
+ }
+ }, getIteratee);
+
+ /**
+ * Invokes the method at `path` of `object`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Object
+ * @param {Object} object The object to query.
+ * @param {Array|string} path The path of the method to invoke.
+ * @param {...*} [args] The arguments to invoke the method with.
+ * @returns {*} Returns the result of the invoked method.
+ * @example
+ *
+ * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] };
+ *
+ * _.invoke(object, 'a[0].b.c.slice', 1, 3);
+ * // => [2, 3]
+ */
+ var invoke = baseRest(baseInvoke);
+
+ /**
+ * Creates an array of the own enumerable property names of `object`.
+ *
+ * **Note:** Non-object values are coerced to objects. See the
+ * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
+ * for more details.
+ *
+ * @static
+ * @since 0.1.0
+ * @memberOf _
+ * @category Object
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of property names.
+ * @example
+ *
+ * function Foo() {
+ * this.a = 1;
+ * this.b = 2;
+ * }
+ *
+ * Foo.prototype.c = 3;
+ *
+ * _.keys(new Foo);
+ * // => ['a', 'b'] (iteration order is not guaranteed)
+ *
+ * _.keys('hi');
+ * // => ['0', '1']
+ */
+ function keys(object) {
+ return isArrayLike(object)
+ ? arrayLikeKeys(object)
+ : baseKeys(object);
+ }
+
+ /**
+ * Creates an array of the own and inherited enumerable property names of `object`.
+ *
+ * **Note:** Non-object values are coerced to objects.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Object
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of property names.
+ * @example
+ *
+ * function Foo() {
+ * this.a = 1;
+ * this.b = 2;
+ * }
+ *
+ * Foo.prototype.c = 3;
+ *
+ * _.keysIn(new Foo);
+ * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
+ */
+ function keysIn(object) {
+ return isArrayLike(object)
+ ? arrayLikeKeys(object, true)
+ : baseKeysIn(object);
+ }
+
+ /**
+ * The opposite of `_.mapValues`; this method creates an object with the
+ * same values as `object` and keys generated by running each own enumerable
+ * string keyed property of `object` thru `iteratee`. The iteratee is invoked
+ * with three arguments: (value, key, object).
+ *
+ * @static
+ * @memberOf _
+ * @since 3.8.0
+ * @category Object
+ * @param {Object} object The object to iterate over.
+ * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+ * @returns {Object} Returns the new mapped object.
+ * @see _.mapValues
+ * @example
+ *
+ * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {
+ * return key + value;
+ * });
+ * // => { 'a1': 1, 'b2': 2 }
+ */
+ function mapKeys(object, iteratee) {
+ var result = {};
+ iteratee = getIteratee(iteratee, 3);
+
+ baseForOwn(object, function(value, key, object) {
+ baseAssignValue(result, iteratee(value, key, object), value);
+ });
+ return result;
+ }
+
+ /**
+ * Creates an object with the same keys as `object` and values generated
+ * by running each own enumerable string keyed property of `object` thru
+ * `iteratee`. The iteratee is invoked with three arguments:
+ * (value, key, object).
+ *
+ * @static
+ * @memberOf _
+ * @since 2.4.0
+ * @category Object
+ * @param {Object} object The object to iterate over.
+ * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+ * @returns {Object} Returns the new mapped object.
+ * @see _.mapKeys
+ * @example
+ *
+ * var users = {
+ * 'fred': { 'user': 'fred', 'age': 40 },
+ * 'pebbles': { 'user': 'pebbles', 'age': 1 }
+ * };
+ *
+ * _.mapValues(users, function(o) { return o.age; });
+ * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
+ *
+ * // The `_.property` iteratee shorthand.
+ * _.mapValues(users, 'age');
+ * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
+ */
+ function mapValues(object, iteratee) {
+ var result = {};
+ iteratee = getIteratee(iteratee, 3);
+
+ baseForOwn(object, function(value, key, object) {
+ baseAssignValue(result, key, iteratee(value, key, object));
+ });
+ return result;
+ }
+
+ /**
+ * This method is like `_.assign` except that it recursively merges own and
+ * inherited enumerable string keyed properties of source objects into the
+ * destination object. Source properties that resolve to `undefined` are
+ * skipped if a destination value exists. Array and plain object properties
+ * are merged recursively. Other objects and value types are overridden by
+ * assignment. Source objects are applied from left to right. Subsequent
+ * sources overwrite property assignments of previous sources.
+ *
+ * **Note:** This method mutates `object`.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.5.0
+ * @category Object
+ * @param {Object} object The destination object.
+ * @param {...Object} [sources] The source objects.
+ * @returns {Object} Returns `object`.
+ * @example
+ *
+ * var object = {
+ * 'a': [{ 'b': 2 }, { 'd': 4 }]
+ * };
+ *
+ * var other = {
+ * 'a': [{ 'c': 3 }, { 'e': 5 }]
+ * };
+ *
+ * _.merge(object, other);
+ * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }
+ */
+ var merge = createAssigner(function(object, source, srcIndex) {
+ baseMerge(object, source, srcIndex);
+ });
+
+ /**
+ * This method is like `_.merge` except that it accepts `customizer` which
+ * is invoked to produce the merged values of the destination and source
+ * properties. If `customizer` returns `undefined`, merging is handled by the
+ * method instead. The `customizer` is invoked with six arguments:
+ * (objValue, srcValue, key, object, source, stack).
+ *
+ * **Note:** This method mutates `object`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Object
+ * @param {Object} object The destination object.
+ * @param {...Object} sources The source objects.
+ * @param {Function} customizer The function to customize assigned values.
+ * @returns {Object} Returns `object`.
+ * @example
+ *
+ * function customizer(objValue, srcValue) {
+ * if (_.isArray(objValue)) {
+ * return objValue.concat(srcValue);
+ * }
+ * }
+ *
+ * var object = { 'a': [1], 'b': [2] };
+ * var other = { 'a': [3], 'b': [4] };
+ *
+ * _.mergeWith(object, other, customizer);
+ * // => { 'a': [1, 3], 'b': [2, 4] }
+ */
+ var mergeWith = createAssigner(function(
+ object,
+ source,
+ srcIndex,
+ customizer,
+ ) {
+ baseMerge(object, source, srcIndex, customizer);
+ });
+
+ /**
+ * The opposite of `_.pick`; this method creates an object composed of the
+ * own and inherited enumerable property paths of `object` that are not omitted.
+ *
+ * **Note:** This method is considerably slower than `_.pick`.
+ *
+ * @static
+ * @since 0.1.0
+ * @memberOf _
+ * @category Object
+ * @param {Object} object The source object.
+ * @param {...(string|string[])} [paths] The property paths to omit.
+ * @returns {Object} Returns the new object.
+ * @example
+ *
+ * var object = { 'a': 1, 'b': '2', 'c': 3 };
+ *
+ * _.omit(object, ['a', 'c']);
+ * // => { 'b': '2' }
+ */
+ var omit = flatRest(function(object, paths) {
+ var result = {};
+ if (object == null) {
+ return result;
+ }
+ var isDeep = false;
+ paths = arrayMap(paths, function(path) {
+ path = castPath(path, object);
+ isDeep || (isDeep = path.length > 1);
+ return path;
+ });
+ copyObject(object, getAllKeysIn(object), result);
+ if (isDeep) {
+ result = baseClone(
+ result,
+ CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG,
+ customOmitClone,
+ );
+ }
+ var length = paths.length;
+ while (length--) {
+ baseUnset(result, paths[length]);
+ }
+ return result;
+ });
+
+ /**
+ * The opposite of `_.pickBy`; this method creates an object composed of
+ * the own and inherited enumerable string keyed properties of `object` that
+ * `predicate` doesn't return truthy for. The predicate is invoked with two
+ * arguments: (value, key).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Object
+ * @param {Object} object The source object.
+ * @param {Function} [predicate=_.identity] The function invoked per property.
+ * @returns {Object} Returns the new object.
+ * @example
+ *
+ * var object = { 'a': 1, 'b': '2', 'c': 3 };
+ *
+ * _.omitBy(object, _.isNumber);
+ * // => { 'b': '2' }
+ */
+ function omitBy(object, predicate) {
+ return pickBy(object, negate(getIteratee(predicate)));
+ }
+
+ /**
+ * Creates an object composed of the picked `object` properties.
+ *
+ * @static
+ * @since 0.1.0
+ * @memberOf _
+ * @category Object
+ * @param {Object} object The source object.
+ * @param {...(string|string[])} [paths] The property paths to pick.
+ * @returns {Object} Returns the new object.
+ * @example
+ *
+ * var object = { 'a': 1, 'b': '2', 'c': 3 };
+ *
+ * _.pick(object, ['a', 'c']);
+ * // => { 'a': 1, 'c': 3 }
+ */
+ var pick = flatRest(function(object, paths) {
+ return object == null ? {} : basePick(object, paths);
+ });
+
+ /**
+ * Creates an object composed of the `object` properties `predicate` returns
+ * truthy for. The predicate is invoked with two arguments: (value, key).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Object
+ * @param {Object} object The source object.
+ * @param {Function} [predicate=_.identity] The function invoked per property.
+ * @returns {Object} Returns the new object.
+ * @example
+ *
+ * var object = { 'a': 1, 'b': '2', 'c': 3 };
+ *
+ * _.pickBy(object, _.isNumber);
+ * // => { 'a': 1, 'c': 3 }
+ */
+ function pickBy(object, predicate) {
+ if (object == null) {
+ return {};
+ }
+ var props = arrayMap(getAllKeysIn(object), function(prop) {
+ return [prop];
+ });
+ predicate = getIteratee(predicate);
+ return basePickBy(object, props, function(value, path) {
+ return predicate(value, path[0]);
+ });
+ }
+
+ /**
+ * This method is like `_.get` except that if the resolved value is a
+ * function it's invoked with the `this` binding of its parent object and
+ * its result is returned.
+ *
+ * @static
+ * @since 0.1.0
+ * @memberOf _
+ * @category Object
+ * @param {Object} object The object to query.
+ * @param {Array|string} path The path of the property to resolve.
+ * @param {*} [defaultValue] The value returned for `undefined` resolved values.
+ * @returns {*} Returns the resolved value.
+ * @example
+ *
+ * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };
+ *
+ * _.result(object, 'a[0].b.c1');
+ * // => 3
+ *
+ * _.result(object, 'a[0].b.c2');
+ * // => 4
+ *
+ * _.result(object, 'a[0].b.c3', 'default');
+ * // => 'default'
+ *
+ * _.result(object, 'a[0].b.c3', _.constant('default'));
+ * // => 'default'
+ */
+ function result(object, path, defaultValue) {
+ path = castPath(path, object);
+
+ var index = -1,
+ length = path.length;
+
+ // Ensure the loop is entered when path is empty.
+ if (!length) {
+ length = 1;
+ object = undefined$1;
+ }
+ while (++index < length) {
+ var value =
+ object == null ? undefined$1 : object[toKey(path[index])];
+ if (value === undefined$1) {
+ index = length;
+ value = defaultValue;
+ }
+ object = isFunction(value) ? value.call(object) : value;
+ }
+ return object;
+ }
+
+ /**
+ * Sets the value at `path` of `object`. If a portion of `path` doesn't exist,
+ * it's created. Arrays are created for missing index properties while objects
+ * are created for all other missing properties. Use `_.setWith` to customize
+ * `path` creation.
+ *
+ * **Note:** This method mutates `object`.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.7.0
+ * @category Object
+ * @param {Object} object The object to modify.
+ * @param {Array|string} path The path of the property to set.
+ * @param {*} value The value to set.
+ * @returns {Object} Returns `object`.
+ * @example
+ *
+ * var object = { 'a': [{ 'b': { 'c': 3 } }] };
+ *
+ * _.set(object, 'a[0].b.c', 4);
+ * console.log(object.a[0].b.c);
+ * // => 4
+ *
+ * _.set(object, ['x', '0', 'y', 'z'], 5);
+ * console.log(object.x[0].y.z);
+ * // => 5
+ */
+ function set(object, path, value) {
+ return object == null ? object : baseSet(object, path, value);
+ }
+
+ /**
+ * This method is like `_.set` except that it accepts `customizer` which is
+ * invoked to produce the objects of `path`. If `customizer` returns `undefined`
+ * path creation is handled by the method instead. The `customizer` is invoked
+ * with three arguments: (nsValue, key, nsObject).
+ *
+ * **Note:** This method mutates `object`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Object
+ * @param {Object} object The object to modify.
+ * @param {Array|string} path The path of the property to set.
+ * @param {*} value The value to set.
+ * @param {Function} [customizer] The function to customize assigned values.
+ * @returns {Object} Returns `object`.
+ * @example
+ *
+ * var object = {};
+ *
+ * _.setWith(object, '[0][1]', 'a', Object);
+ * // => { '0': { '1': 'a' } }
+ */
+ function setWith(object, path, value, customizer) {
+ customizer =
+ typeof customizer == 'function' ? customizer : undefined$1;
+ return object == null
+ ? object
+ : baseSet(object, path, value, customizer);
+ }
+
+ /**
+ * Creates an array of own enumerable string keyed-value pairs for `object`
+ * which can be consumed by `_.fromPairs`. If `object` is a map or set, its
+ * entries are returned.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @alias entries
+ * @category Object
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the key-value pairs.
+ * @example
+ *
+ * function Foo() {
+ * this.a = 1;
+ * this.b = 2;
+ * }
+ *
+ * Foo.prototype.c = 3;
+ *
+ * _.toPairs(new Foo);
+ * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed)
+ */
+ var toPairs = createToPairs(keys);
+
+ /**
+ * Creates an array of own and inherited enumerable string keyed-value pairs
+ * for `object` which can be consumed by `_.fromPairs`. If `object` is a map
+ * or set, its entries are returned.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @alias entriesIn
+ * @category Object
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the key-value pairs.
+ * @example
+ *
+ * function Foo() {
+ * this.a = 1;
+ * this.b = 2;
+ * }
+ *
+ * Foo.prototype.c = 3;
+ *
+ * _.toPairsIn(new Foo);
+ * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed)
+ */
+ var toPairsIn = createToPairs(keysIn);
+
+ /**
+ * An alternative to `_.reduce`; this method transforms `object` to a new
+ * `accumulator` object which is the result of running each of its own
+ * enumerable string keyed properties thru `iteratee`, with each invocation
+ * potentially mutating the `accumulator` object. If `accumulator` is not
+ * provided, a new object with the same `[[Prototype]]` will be used. The
+ * iteratee is invoked with four arguments: (accumulator, value, key, object).
+ * Iteratee functions may exit iteration early by explicitly returning `false`.
+ *
+ * @static
+ * @memberOf _
+ * @since 1.3.0
+ * @category Object
+ * @param {Object} object The object to iterate over.
+ * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+ * @param {*} [accumulator] The custom accumulator value.
+ * @returns {*} Returns the accumulated value.
+ * @example
+ *
+ * _.transform([2, 3, 4], function(result, n) {
+ * result.push(n *= n);
+ * return n % 2 == 0;
+ * }, []);
+ * // => [4, 9]
+ *
+ * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {
+ * (result[value] || (result[value] = [])).push(key);
+ * }, {});
+ * // => { '1': ['a', 'c'], '2': ['b'] }
+ */
+ function transform(object, iteratee, accumulator) {
+ var isArr = isArray(object),
+ isArrLike = isArr || isBuffer(object) || isTypedArray(object);
+
+ iteratee = getIteratee(iteratee, 4);
+ if (accumulator == null) {
+ var Ctor = object && object.constructor;
+ if (isArrLike) {
+ accumulator = isArr ? new Ctor() : [];
+ } else if (isObject(object)) {
+ accumulator = isFunction(Ctor)
+ ? baseCreate(getPrototype(object))
+ : {};
+ } else {
+ accumulator = {};
+ }
+ }
+ (isArrLike ? arrayEach : baseForOwn)(object, function(
+ value,
+ index,
+ object,
+ ) {
+ return iteratee(accumulator, value, index, object);
+ });
+ return accumulator;
+ }
+
+ /**
+ * Removes the property at `path` of `object`.
+ *
+ * **Note:** This method mutates `object`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Object
+ * @param {Object} object The object to modify.
+ * @param {Array|string} path The path of the property to unset.
+ * @returns {boolean} Returns `true` if the property is deleted, else `false`.
+ * @example
+ *
+ * var object = { 'a': [{ 'b': { 'c': 7 } }] };
+ * _.unset(object, 'a[0].b.c');
+ * // => true
+ *
+ * console.log(object);
+ * // => { 'a': [{ 'b': {} }] };
+ *
+ * _.unset(object, ['a', '0', 'b', 'c']);
+ * // => true
+ *
+ * console.log(object);
+ * // => { 'a': [{ 'b': {} }] };
+ */
+ function unset(object, path) {
+ return object == null ? true : baseUnset(object, path);
+ }
+
+ /**
+ * This method is like `_.set` except that accepts `updater` to produce the
+ * value to set. Use `_.updateWith` to customize `path` creation. The `updater`
+ * is invoked with one argument: (value).
+ *
+ * **Note:** This method mutates `object`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.6.0
+ * @category Object
+ * @param {Object} object The object to modify.
+ * @param {Array|string} path The path of the property to set.
+ * @param {Function} updater The function to produce the updated value.
+ * @returns {Object} Returns `object`.
+ * @example
+ *
+ * var object = { 'a': [{ 'b': { 'c': 3 } }] };
+ *
+ * _.update(object, 'a[0].b.c', function(n) { return n * n; });
+ * console.log(object.a[0].b.c);
+ * // => 9
+ *
+ * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; });
+ * console.log(object.x[0].y.z);
+ * // => 0
+ */
+ function update(object, path, updater) {
+ return object == null
+ ? object
+ : baseUpdate(object, path, castFunction(updater));
+ }
+
+ /**
+ * This method is like `_.update` except that it accepts `customizer` which is
+ * invoked to produce the objects of `path`. If `customizer` returns `undefined`
+ * path creation is handled by the method instead. The `customizer` is invoked
+ * with three arguments: (nsValue, key, nsObject).
+ *
+ * **Note:** This method mutates `object`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.6.0
+ * @category Object
+ * @param {Object} object The object to modify.
+ * @param {Array|string} path The path of the property to set.
+ * @param {Function} updater The function to produce the updated value.
+ * @param {Function} [customizer] The function to customize assigned values.
+ * @returns {Object} Returns `object`.
+ * @example
+ *
+ * var object = {};
+ *
+ * _.updateWith(object, '[0][1]', _.constant('a'), Object);
+ * // => { '0': { '1': 'a' } }
+ */
+ function updateWith(object, path, updater, customizer) {
+ customizer =
+ typeof customizer == 'function' ? customizer : undefined$1;
+ return object == null
+ ? object
+ : baseUpdate(object, path, castFunction(updater), customizer);
+ }
+
+ /**
+ * Creates an array of the own enumerable string keyed property values of `object`.
+ *
+ * **Note:** Non-object values are coerced to objects.
+ *
+ * @static
+ * @since 0.1.0
+ * @memberOf _
+ * @category Object
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of property values.
+ * @example
+ *
+ * function Foo() {
+ * this.a = 1;
+ * this.b = 2;
+ * }
+ *
+ * Foo.prototype.c = 3;
+ *
+ * _.values(new Foo);
+ * // => [1, 2] (iteration order is not guaranteed)
+ *
+ * _.values('hi');
+ * // => ['h', 'i']
+ */
+ function values(object) {
+ return object == null ? [] : baseValues(object, keys(object));
+ }
+
+ /**
+ * Creates an array of the own and inherited enumerable string keyed property
+ * values of `object`.
+ *
+ * **Note:** Non-object values are coerced to objects.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Object
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of property values.
+ * @example
+ *
+ * function Foo() {
+ * this.a = 1;
+ * this.b = 2;
+ * }
+ *
+ * Foo.prototype.c = 3;
+ *
+ * _.valuesIn(new Foo);
+ * // => [1, 2, 3] (iteration order is not guaranteed)
+ */
+ function valuesIn(object) {
+ return object == null ? [] : baseValues(object, keysIn(object));
+ }
+
+ /*------------------------------------------------------------------------*/
+
+ /**
+ * Clamps `number` within the inclusive `lower` and `upper` bounds.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Number
+ * @param {number} number The number to clamp.
+ * @param {number} [lower] The lower bound.
+ * @param {number} upper The upper bound.
+ * @returns {number} Returns the clamped number.
+ * @example
+ *
+ * _.clamp(-10, -5, 5);
+ * // => -5
+ *
+ * _.clamp(10, -5, 5);
+ * // => 5
+ */
+ function clamp(number, lower, upper) {
+ if (upper === undefined$1) {
+ upper = lower;
+ lower = undefined$1;
+ }
+ if (upper !== undefined$1) {
+ upper = toNumber(upper);
+ upper = upper === upper ? upper : 0;
+ }
+ if (lower !== undefined$1) {
+ lower = toNumber(lower);
+ lower = lower === lower ? lower : 0;
+ }
+ return baseClamp(toNumber(number), lower, upper);
+ }
+
+ /**
+ * Checks if `n` is between `start` and up to, but not including, `end`. If
+ * `end` is not specified, it's set to `start` with `start` then set to `0`.
+ * If `start` is greater than `end` the params are swapped to support
+ * negative ranges.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.3.0
+ * @category Number
+ * @param {number} number The number to check.
+ * @param {number} [start=0] The start of the range.
+ * @param {number} end The end of the range.
+ * @returns {boolean} Returns `true` if `number` is in the range, else `false`.
+ * @see _.range, _.rangeRight
+ * @example
+ *
+ * _.inRange(3, 2, 4);
+ * // => true
+ *
+ * _.inRange(4, 8);
+ * // => true
+ *
+ * _.inRange(4, 2);
+ * // => false
+ *
+ * _.inRange(2, 2);
+ * // => false
+ *
+ * _.inRange(1.2, 2);
+ * // => true
+ *
+ * _.inRange(5.2, 4);
+ * // => false
+ *
+ * _.inRange(-3, -2, -6);
+ * // => true
+ */
+ function inRange(number, start, end) {
+ start = toFinite(start);
+ if (end === undefined$1) {
+ end = start;
+ start = 0;
+ } else {
+ end = toFinite(end);
+ }
+ number = toNumber(number);
+ return baseInRange(number, start, end);
+ }
+
+ /**
+ * Produces a random number between the inclusive `lower` and `upper` bounds.
+ * If only one argument is provided a number between `0` and the given number
+ * is returned. If `floating` is `true`, or either `lower` or `upper` are
+ * floats, a floating-point number is returned instead of an integer.
+ *
+ * **Note:** JavaScript follows the IEEE-754 standard for resolving
+ * floating-point values which can produce unexpected results.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.7.0
+ * @category Number
+ * @param {number} [lower=0] The lower bound.
+ * @param {number} [upper=1] The upper bound.
+ * @param {boolean} [floating] Specify returning a floating-point number.
+ * @returns {number} Returns the random number.
+ * @example
+ *
+ * _.random(0, 5);
+ * // => an integer between 0 and 5
+ *
+ * _.random(5);
+ * // => also an integer between 0 and 5
+ *
+ * _.random(5, true);
+ * // => a floating-point number between 0 and 5
+ *
+ * _.random(1.2, 5.2);
+ * // => a floating-point number between 1.2 and 5.2
+ */
+ function random(lower, upper, floating) {
+ if (
+ floating &&
+ typeof floating != 'boolean' &&
+ isIterateeCall(lower, upper, floating)
+ ) {
+ upper = floating = undefined$1;
+ }
+ if (floating === undefined$1) {
+ if (typeof upper == 'boolean') {
+ floating = upper;
+ upper = undefined$1;
+ } else if (typeof lower == 'boolean') {
+ floating = lower;
+ lower = undefined$1;
+ }
+ }
+ if (lower === undefined$1 && upper === undefined$1) {
+ lower = 0;
+ upper = 1;
+ } else {
+ lower = toFinite(lower);
+ if (upper === undefined$1) {
+ upper = lower;
+ lower = 0;
+ } else {
+ upper = toFinite(upper);
+ }
+ }
+ if (lower > upper) {
+ var temp = lower;
+ lower = upper;
+ upper = temp;
+ }
+ if (floating || lower % 1 || upper % 1) {
+ var rand = nativeRandom();
+ return nativeMin(
+ lower +
+ rand *
+ (upper -
+ lower +
+ freeParseFloat(
+ '1e-' + ((rand + '').length - 1),
+ )),
+ upper,
+ );
+ }
+ return baseRandom(lower, upper);
+ }
+
+ /*------------------------------------------------------------------------*/
+
+ /**
+ * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category String
+ * @param {string} [string=''] The string to convert.
+ * @returns {string} Returns the camel cased string.
+ * @example
+ *
+ * _.camelCase('Foo Bar');
+ * // => 'fooBar'
+ *
+ * _.camelCase('--foo-bar--');
+ * // => 'fooBar'
+ *
+ * _.camelCase('__FOO_BAR__');
+ * // => 'fooBar'
+ */
+ var camelCase = createCompounder(function(result, word, index) {
+ word = word.toLowerCase();
+ return result + (index ? capitalize(word) : word);
+ });
+
+ /**
+ * Converts the first character of `string` to upper case and the remaining
+ * to lower case.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category String
+ * @param {string} [string=''] The string to capitalize.
+ * @returns {string} Returns the capitalized string.
+ * @example
+ *
+ * _.capitalize('FRED');
+ * // => 'Fred'
+ */
+ function capitalize(string) {
+ return upperFirst(toString(string).toLowerCase());
+ }
+
+ /**
+ * Deburrs `string` by converting
+ * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)
+ * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A)
+ * letters to basic Latin letters and removing
+ * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category String
+ * @param {string} [string=''] The string to deburr.
+ * @returns {string} Returns the deburred string.
+ * @example
+ *
+ * _.deburr('déjà vu');
+ * // => 'deja vu'
+ */
+ function deburr(string) {
+ string = toString(string);
+ return (
+ string &&
+ string.replace(reLatin, deburrLetter).replace(reComboMark, '')
+ );
+ }
+
+ /**
+ * Checks if `string` ends with the given target string.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category String
+ * @param {string} [string=''] The string to inspect.
+ * @param {string} [target] The string to search for.
+ * @param {number} [position=string.length] The position to search up to.
+ * @returns {boolean} Returns `true` if `string` ends with `target`,
+ * else `false`.
+ * @example
+ *
+ * _.endsWith('abc', 'c');
+ * // => true
+ *
+ * _.endsWith('abc', 'b');
+ * // => false
+ *
+ * _.endsWith('abc', 'b', 2);
+ * // => true
+ */
+ function endsWith(string, target, position) {
+ string = toString(string);
+ target = baseToString(target);
+
+ var length = string.length;
+ position =
+ position === undefined$1
+ ? length
+ : baseClamp(toInteger(position), 0, length);
+
+ var end = position;
+ position -= target.length;
+ return position >= 0 && string.slice(position, end) == target;
+ }
+
+ /**
+ * Converts the characters "&", "<", ">", '"', and "'" in `string` to their
+ * corresponding HTML entities.
+ *
+ * **Note:** No other characters are escaped. To escape additional
+ * characters use a third-party library like [_he_](https://mths.be/he).
+ *
+ * Though the ">" character is escaped for symmetry, characters like
+ * ">" and "/" don't need escaping in HTML and have no special meaning
+ * unless they're part of a tag or unquoted attribute value. See
+ * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)
+ * (under "semi-related fun fact") for more details.
+ *
+ * When working with HTML you should always
+ * [quote attribute values](http://wonko.com/post/html-escaping) to reduce
+ * XSS vectors.
+ *
+ * @static
+ * @since 0.1.0
+ * @memberOf _
+ * @category String
+ * @param {string} [string=''] The string to escape.
+ * @returns {string} Returns the escaped string.
+ * @example
+ *
+ * _.escape('fred, barney, & pebbles');
+ * // => 'fred, barney, & pebbles'
+ */
+ function escape(string) {
+ string = toString(string);
+ return string && reHasUnescapedHtml.test(string)
+ ? string.replace(reUnescapedHtml, escapeHtmlChar)
+ : string;
+ }
+
+ /**
+ * Escapes the `RegExp` special characters "^", "$", "\", ".", "*", "+",
+ * "?", "(", ")", "[", "]", "{", "}", and "|" in `string`.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category String
+ * @param {string} [string=''] The string to escape.
+ * @returns {string} Returns the escaped string.
+ * @example
+ *
+ * _.escapeRegExp('[lodash](https://lodash.com/)');
+ * // => '\[lodash\]\(https://lodash\.com/\)'
+ */
+ function escapeRegExp(string) {
+ string = toString(string);
+ return string && reHasRegExpChar.test(string)
+ ? string.replace(reRegExpChar, '\\$&')
+ : string;
+ }
+
+ /**
+ * Converts `string` to
+ * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category String
+ * @param {string} [string=''] The string to convert.
+ * @returns {string} Returns the kebab cased string.
+ * @example
+ *
+ * _.kebabCase('Foo Bar');
+ * // => 'foo-bar'
+ *
+ * _.kebabCase('fooBar');
+ * // => 'foo-bar'
+ *
+ * _.kebabCase('__FOO_BAR__');
+ * // => 'foo-bar'
+ */
+ var kebabCase = createCompounder(function(result, word, index) {
+ return result + (index ? '-' : '') + word.toLowerCase();
+ });
+
+ /**
+ * Converts `string`, as space separated words, to lower case.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category String
+ * @param {string} [string=''] The string to convert.
+ * @returns {string} Returns the lower cased string.
+ * @example
+ *
+ * _.lowerCase('--Foo-Bar--');
+ * // => 'foo bar'
+ *
+ * _.lowerCase('fooBar');
+ * // => 'foo bar'
+ *
+ * _.lowerCase('__FOO_BAR__');
+ * // => 'foo bar'
+ */
+ var lowerCase = createCompounder(function(result, word, index) {
+ return result + (index ? ' ' : '') + word.toLowerCase();
+ });
+
+ /**
+ * Converts the first character of `string` to lower case.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category String
+ * @param {string} [string=''] The string to convert.
+ * @returns {string} Returns the converted string.
+ * @example
+ *
+ * _.lowerFirst('Fred');
+ * // => 'fred'
+ *
+ * _.lowerFirst('FRED');
+ * // => 'fRED'
+ */
+ var lowerFirst = createCaseFirst('toLowerCase');
+
+ /**
+ * Pads `string` on the left and right sides if it's shorter than `length`.
+ * Padding characters are truncated if they can't be evenly divided by `length`.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category String
+ * @param {string} [string=''] The string to pad.
+ * @param {number} [length=0] The padding length.
+ * @param {string} [chars=' '] The string used as padding.
+ * @returns {string} Returns the padded string.
+ * @example
+ *
+ * _.pad('abc', 8);
+ * // => ' abc '
+ *
+ * _.pad('abc', 8, '_-');
+ * // => '_-abc_-_'
+ *
+ * _.pad('abc', 3);
+ * // => 'abc'
+ */
+ function pad(string, length, chars) {
+ string = toString(string);
+ length = toInteger(length);
+
+ var strLength = length ? stringSize(string) : 0;
+ if (!length || strLength >= length) {
+ return string;
+ }
+ var mid = (length - strLength) / 2;
+ return (
+ createPadding(nativeFloor(mid), chars) +
+ string +
+ createPadding(nativeCeil(mid), chars)
+ );
+ }
+
+ /**
+ * Pads `string` on the right side if it's shorter than `length`. Padding
+ * characters are truncated if they exceed `length`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category String
+ * @param {string} [string=''] The string to pad.
+ * @param {number} [length=0] The padding length.
+ * @param {string} [chars=' '] The string used as padding.
+ * @returns {string} Returns the padded string.
+ * @example
+ *
+ * _.padEnd('abc', 6);
+ * // => 'abc '
+ *
+ * _.padEnd('abc', 6, '_-');
+ * // => 'abc_-_'
+ *
+ * _.padEnd('abc', 3);
+ * // => 'abc'
+ */
+ function padEnd(string, length, chars) {
+ string = toString(string);
+ length = toInteger(length);
+
+ var strLength = length ? stringSize(string) : 0;
+ return length && strLength < length
+ ? string + createPadding(length - strLength, chars)
+ : string;
+ }
+
+ /**
+ * Pads `string` on the left side if it's shorter than `length`. Padding
+ * characters are truncated if they exceed `length`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category String
+ * @param {string} [string=''] The string to pad.
+ * @param {number} [length=0] The padding length.
+ * @param {string} [chars=' '] The string used as padding.
+ * @returns {string} Returns the padded string.
+ * @example
+ *
+ * _.padStart('abc', 6);
+ * // => ' abc'
+ *
+ * _.padStart('abc', 6, '_-');
+ * // => '_-_abc'
+ *
+ * _.padStart('abc', 3);
+ * // => 'abc'
+ */
+ function padStart(string, length, chars) {
+ string = toString(string);
+ length = toInteger(length);
+
+ var strLength = length ? stringSize(string) : 0;
+ return length && strLength < length
+ ? createPadding(length - strLength, chars) + string
+ : string;
+ }
+
+ /**
+ * Converts `string` to an integer of the specified radix. If `radix` is
+ * `undefined` or `0`, a `radix` of `10` is used unless `value` is a
+ * hexadecimal, in which case a `radix` of `16` is used.
+ *
+ * **Note:** This method aligns with the
+ * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`.
+ *
+ * @static
+ * @memberOf _
+ * @since 1.1.0
+ * @category String
+ * @param {string} string The string to convert.
+ * @param {number} [radix=10] The radix to interpret `value` by.
+ * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+ * @returns {number} Returns the converted integer.
+ * @example
+ *
+ * _.parseInt('08');
+ * // => 8
+ *
+ * _.map(['6', '08', '10'], _.parseInt);
+ * // => [6, 8, 10]
+ */
+ function parseInt(string, radix, guard) {
+ if (guard || radix == null) {
+ radix = 0;
+ } else if (radix) {
+ radix = +radix;
+ }
+ return nativeParseInt(
+ toString(string).replace(reTrimStart, ''),
+ radix || 0,
+ );
+ }
+
+ /**
+ * Repeats the given string `n` times.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category String
+ * @param {string} [string=''] The string to repeat.
+ * @param {number} [n=1] The number of times to repeat the string.
+ * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+ * @returns {string} Returns the repeated string.
+ * @example
+ *
+ * _.repeat('*', 3);
+ * // => '***'
+ *
+ * _.repeat('abc', 2);
+ * // => 'abcabc'
+ *
+ * _.repeat('abc', 0);
+ * // => ''
+ */
+ function repeat(string, n, guard) {
+ if (guard ? isIterateeCall(string, n, guard) : n === undefined$1) {
+ n = 1;
+ } else {
+ n = toInteger(n);
+ }
+ return baseRepeat(toString(string), n);
+ }
+
+ /**
+ * Replaces matches for `pattern` in `string` with `replacement`.
+ *
+ * **Note:** This method is based on
+ * [`String#replace`](https://mdn.io/String/replace).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category String
+ * @param {string} [string=''] The string to modify.
+ * @param {RegExp|string} pattern The pattern to replace.
+ * @param {Function|string} replacement The match replacement.
+ * @returns {string} Returns the modified string.
+ * @example
+ *
+ * _.replace('Hi Fred', 'Fred', 'Barney');
+ * // => 'Hi Barney'
+ */
+ function replace() {
+ var args = arguments,
+ string = toString(args[0]);
+
+ return args.length < 3 ? string : string.replace(args[1], args[2]);
+ }
+
+ /**
+ * Converts `string` to
+ * [snake case](https://en.wikipedia.org/wiki/Snake_case).
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category String
+ * @param {string} [string=''] The string to convert.
+ * @returns {string} Returns the snake cased string.
+ * @example
+ *
+ * _.snakeCase('Foo Bar');
+ * // => 'foo_bar'
+ *
+ * _.snakeCase('fooBar');
+ * // => 'foo_bar'
+ *
+ * _.snakeCase('--FOO-BAR--');
+ * // => 'foo_bar'
+ */
+ var snakeCase = createCompounder(function(result, word, index) {
+ return result + (index ? '_' : '') + word.toLowerCase();
+ });
+
+ /**
+ * Splits `string` by `separator`.
+ *
+ * **Note:** This method is based on
+ * [`String#split`](https://mdn.io/String/split).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category String
+ * @param {string} [string=''] The string to split.
+ * @param {RegExp|string} separator The separator pattern to split by.
+ * @param {number} [limit] The length to truncate results to.
+ * @returns {Array} Returns the string segments.
+ * @example
+ *
+ * _.split('a-b-c', '-', 2);
+ * // => ['a', 'b']
+ */
+ function split(string, separator, limit) {
+ if (
+ limit &&
+ typeof limit != 'number' &&
+ isIterateeCall(string, separator, limit)
+ ) {
+ separator = limit = undefined$1;
+ }
+ limit = limit === undefined$1 ? MAX_ARRAY_LENGTH : limit >>> 0;
+ if (!limit) {
+ return [];
+ }
+ string = toString(string);
+ if (
+ string &&
+ (typeof separator == 'string' ||
+ (separator != null && !isRegExp(separator)))
+ ) {
+ separator = baseToString(separator);
+ if (!separator && hasUnicode(string)) {
+ return castSlice(stringToArray(string), 0, limit);
+ }
+ }
+ return string.split(separator, limit);
+ }
+
+ /**
+ * Converts `string` to
+ * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).
+ *
+ * @static
+ * @memberOf _
+ * @since 3.1.0
+ * @category String
+ * @param {string} [string=''] The string to convert.
+ * @returns {string} Returns the start cased string.
+ * @example
+ *
+ * _.startCase('--foo-bar--');
+ * // => 'Foo Bar'
+ *
+ * _.startCase('fooBar');
+ * // => 'Foo Bar'
+ *
+ * _.startCase('__FOO_BAR__');
+ * // => 'FOO BAR'
+ */
+ var startCase = createCompounder(function(result, word, index) {
+ return result + (index ? ' ' : '') + upperFirst(word);
+ });
+
+ /**
+ * Checks if `string` starts with the given target string.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category String
+ * @param {string} [string=''] The string to inspect.
+ * @param {string} [target] The string to search for.
+ * @param {number} [position=0] The position to search from.
+ * @returns {boolean} Returns `true` if `string` starts with `target`,
+ * else `false`.
+ * @example
+ *
+ * _.startsWith('abc', 'a');
+ * // => true
+ *
+ * _.startsWith('abc', 'b');
+ * // => false
+ *
+ * _.startsWith('abc', 'b', 1);
+ * // => true
+ */
+ function startsWith(string, target, position) {
+ string = toString(string);
+ position =
+ position == null
+ ? 0
+ : baseClamp(toInteger(position), 0, string.length);
+
+ target = baseToString(target);
+ return string.slice(position, position + target.length) == target;
+ }
+
+ /**
+ * Creates a compiled template function that can interpolate data properties
+ * in "interpolate" delimiters, HTML-escape interpolated data properties in
+ * "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data
+ * properties may be accessed as free variables in the template. If a setting
+ * object is given, it takes precedence over `_.templateSettings` values.
+ *
+ * **Note:** In the development build `_.template` utilizes
+ * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)
+ * for easier debugging.
+ *
+ * For more information on precompiling templates see
+ * [lodash's custom builds documentation](https://lodash.com/custom-builds).
+ *
+ * For more information on Chrome extension sandboxes see
+ * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).
+ *
+ * @static
+ * @since 0.1.0
+ * @memberOf _
+ * @category String
+ * @param {string} [string=''] The template string.
+ * @param {Object} [options={}] The options object.
+ * @param {RegExp} [options.escape=_.templateSettings.escape]
+ * The HTML "escape" delimiter.
+ * @param {RegExp} [options.evaluate=_.templateSettings.evaluate]
+ * The "evaluate" delimiter.
+ * @param {Object} [options.imports=_.templateSettings.imports]
+ * An object to import into the template as free variables.
+ * @param {RegExp} [options.interpolate=_.templateSettings.interpolate]
+ * The "interpolate" delimiter.
+ * @param {string} [options.sourceURL='lodash.templateSources[n]']
+ * The sourceURL of the compiled template.
+ * @param {string} [options.variable='obj']
+ * The data object variable name.
+ * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
+ * @returns {Function} Returns the compiled template function.
+ * @example
+ *
+ * // Use the "interpolate" delimiter to create a compiled template.
+ * var compiled = _.template('hello <%= user %>!');
+ * compiled({ 'user': 'fred' });
+ * // => 'hello fred!'
+ *
+ * // Use the HTML "escape" delimiter to escape data property values.
+ * var compiled = _.template('<%- value %>');
+ * compiled({ 'value': '