.babelrc

{
    "presets": [
        [  
            "es2015",  
            {  
              "modules": false  
            }  
          ],
        "react",
        "stage-2"
      ],
    "env": {
        "test": {
          "plugins": ["istanbul"]
        },
        "commonjs": {
          "plugins": [
            ["transform-es2015-modules-commonjs", { "loose": true }]
          ]
        },
        "es": {
          "plugins": [
            "./use-lodash-es"
          ]
        },
        "rollup": {
          "plugins": [
            "./use-lodash-es",
            "external-helpers"
          ]
        }
      },
      "plugins": [
        "transform-class-properties",
        "transform-decorators-legacy",
        ["transform-es2015-template-literals", { "loose": true }],
        "transform-es2015-literals",
        "transform-es2015-function-name",
        "transform-es2015-arrow-functions",
        "transform-es2015-block-scoped-functions",
        ["transform-es2015-classes", { "loose": true }],
        "transform-es2015-object-super",
        "transform-es2015-shorthand-properties",
        ["transform-es2015-computed-properties", { "loose": true }],
        ["transform-es2015-for-of", { "loose": true }],
        "transform-es2015-sticky-regex",
        "transform-es2015-unicode-regex",
        "check-es2015-constants",
        ["transform-es2015-spread", { "loose": true }],
        "transform-es2015-parameters",
        ["transform-es2015-destructuring", { "loose": true }],
        "transform-es2015-block-scoping",
        "transform-object-rest-spread",
        "transform-react-jsx",
        "syntax-jsx"
      ]
  }