常用工具整理

baseCommon.js

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+export default class BaseCommon {
+  /** 格式化日期
+   * @param time 13位毫秒数时间戳
+   * @param pattern 默认返回的日期格式
+   * @returns {string} 返回值是格式化的字符串日期
+   */
+  static parseTime(time, pattern) {
+    if (arguments.length === 0 || !time) {
+      return null;
+    }
+    const format = pattern || '{y}-{m}-{d} {h}:{i}:{s}';
+    let date;
+    if (typeof time === 'object') {
+      date = time;
+    } else {
+      if (typeof time === 'string' && /^[0-9]+$/.test(time)) {
+        time = parseInt(time);
+      } else if (typeof time === 'string') {
+        time = time.replace(new RegExp(/-/gm), '/');
+      }
+      if (typeof time === 'number' && time.toString().length === 10) {
+        time = time * 1000;
+      }
+      date = new Date(time);
+    }
+    const formatObj = {
+      y: date.getFullYear(),
+      m: date.getMonth() + 1,
+      d: date.getDate(),
+      h: date.getHours(),
+      i: date.getMinutes(),
+      s: date.getSeconds(),
+      a: date.getDay(),
+    };
+    const time_str = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => {
+      let value = formatObj[key];
+      // Note: getDay() returns 0 on Sunday
+      if (key === 'a') {
+        return ['日', '一', '二', '三', '四', '五', '六'][value];
+      }
+      if (result.length > 0 && value < 10) {
+        value = '0' + value;
+      }
+      return value || 0;
+    });
+    return time_str;
+  }
+
+  /** 金额转化
+   * @param n 数字
+   * @returns {string} 返回值是汉字大写
+   */
+  static transMoney(n) {
+    let fraction = ['角', '分'];
+    let digit = ['零', '壹', '贰', '叁', '肆', '伍', '陆', '柒', '捌', '玖'];
+    let unit = [
+      ['元', '万', '亿'],
+      ['', '拾', '佰', '仟'],
+    ];
+    let head = n < 0 ? '欠' : '';
+    n = Math.abs(n);
+    let s = '';
+    for (let i = 0; i < fraction.length; i++) {
+      s += (
+        digit[Math.floor(n * 10 * Math.pow(10, i)) % 10] + fraction[i]
+      ).replace(/零./, '');
+    }
+    s = s || '整';
+    n = Math.floor(n);
+
+    for (let i = 0; i < unit[0].length && n > 0; i++) {
+      let p = '';
+      for (let j = 0; j < unit[1].length && n > 0; j++) {
+        p = digit[n % 10] + unit[1][j] + p;
+        n = Math.floor(n / 10);
+      }
+      s = p.replace(/(零.)*零$/, '').replace(/^$/, '零') + unit[0][i] + s;
+    }
+    return (
+      head +
+      s
+        .replace(/(零.)*零元/, '元')
+        .replace(/(零.)+/g, '零')
+        .replace(/^整$/, '零元整')
+    );
+  }
+  /** 排序
+   * @param value
+   * @param type up为升序，down为降序
+   * @returns {Array} 返回值是格式化的数组
+   */
+  static arraySort(value, type) {
+    if (type === 'up') {
+      value.sort((a, b) => {
+        return a - b;
+      });
+      return value;
+    } else if (type === 'down') {
+      value.sort((a, b) => {
+        return b - a;
+      });
+      return value;
+    } else {
+      console.error('type类型错误');
+      return false;
+    }
+  }
+
+  /** 返回当前浏览器是什么类型的浏览器
+   * @returns {string} 返回值为浏览器类型
+   * Edge浏览器也使用chrome内核，故Edge上也会返回chrome
+   */
+  static userBrowser() {
+    let browserName = navigator.userAgent.toLowerCase();
+    let browserType = '';
+    if (/msie/i.test(browserName) && !/opera/.test(browserName)) {
+      browserType = 'IE';
+    } else if (/firefox/i.test(browserName)) {
+      browserType = 'Firefox';
+    } else if (
+      /chrome/i.test(browserName) &&
+      /webkit/i.test(browserName) &&
+      /mozilla/i.test(browserName)
+    ) {
+      browserType = 'Chrome';
+    } else if (/opera/i.test(browserName)) {
+      browserType = 'Opera';
+    } else if (
+      /webkit/i.test(browserName) &&
+      !(
+        /chrome/i.test(browserName) &&
+        /webkit/i.test(browserName) &&
+        /mozilla/i.test(browserName)
+      )
+    ) {
+      browserType = 'Safari';
+    } else {
+      browserType = '未知浏览器';
+    }
+    return browserType;
+  }
+
+  /** 字符串大小写转换
+   * @param str
+   * @param type  firCaps:首字母大写;firLower:首字母小写;allCaps:全部大写;allLower:全部小写;
+   * @returns {string} 返回值为浏览器类型
+   * Edge浏览器也使用chrome内核，故Edge上也会返回chrome
+   */
+  static changeCase(str, type) {
+    if (typeof str !== 'string' || str === '') return false;
+    if (type === 'firCaps') {
+      return str.replace(str[0], str[0].toUpperCase());
+    } else if (type === 'firLower') {
+      return str.replace(str[0], str[0].toLowerCase());
+    } else if (type === 'allCaps') {
+      return str.toUpperCase();
+    } else if (type === 'allLower') {
+      return str.toLowerCase();
+    } else {
+      return str;
+    }
+  }
+
+  /** 设置，获取URL参数
+   * @param url  URL地址
+   * @returns {key:value} 返回值为对象
+   * Edge浏览器也使用chrome内核，故Edge上也会返回chrome
+   */
+  static getUrlPrmt(url) {
+    url = url ? url : window.location.href;
+    let _pa = url.substring(url.indexOf('?') + 1),
+      _arrS = _pa.split('&'),
+      _rs = {};
+    for (let i = 0, _len = _arrS.length; i < _len; i++) {
+      let pos = _arrS[i].indexOf('=');
+      if (pos == -1) {
+        continue;
+      }
+      let name = _arrS[i].substring(0, pos),
+        value = window.decodeURIComponent(_arrS[i].substring(pos + 1));
+      _rs[name] = value;
+    }
+    return _rs;
+  }
+
+  /**
+   * 节流
+   * @param {*} func 执行函数
+   * @param {*} delay 节流时间,毫秒
+   */
+  static throttle(func, delay) {
+    let timer = null;
+    return function () {
+      if (!timer) {
+        timer = setTimeout(() => {
+          func.apply(this, arguments);
+          // 或者直接 func()
+          timer = null;
+        }, delay);
+      }
+    };
+  }
+
+  /**
+   * 防抖
+   * @param {*} fn 执行函数
+   * @param {*} wait 防抖时间,毫秒
+   */
+  static debounce(fn, wait) {
+    let timeout = null;
+    return function () {
+      // 如果多次触发将上次记录延迟清除掉
+      if (timeout !== null) clearTimeout(timeout);
+      timeout = setTimeout(() => {
+        fn.apply(this, arguments);
+        // 或者直接 fn()
+        timeout = null;
+      }, wait);
+    };
+  }
+}