.babelrc

{
  "presets": [
    [
      "env",
      {
        "targets": {
          "uglify": true
        },
        "modules": false,
        "useBuiltIns": true,
        "exclude": [
          "transform-regenerator",
          "es6.typed.data-view",
          "es6.typed.int8-array",
          "es6.typed.uint8-array",
          "es6.typed.uint8-clamped-array",
          "es6.typed.int16-array",
          "es6.typed.uint16-array",
          "es6.typed.int32-array",
          "es6.typed.uint32-array",
          "es6.typed.float32-array",
          "es6.typed.float64-array",
          "es6.reflect.apply",
          "es6.reflect.construct",
          "es6.reflect.define-property",
          "es6.reflect.delete-property",
          "es6.reflect.get",
          "es6.reflect.get-own-property-descriptor",
          "es6.reflect.get-prototype-of",
          "es6.reflect.has",
          "es6.reflect.is-extensible",
          "es6.reflect.own-keys",
          "es6.reflect.prevent-extensions",
          "es6.reflect.set",
          "es6.reflect.set-prototype-of",
          "es6.symbol",
          "transform-es2015-typeof-symbol",
          "es6.math.acosh",
          "es6.math.asinh",
          "es6.math.atanh",
          "es6.math.cbrt",
          "es6.math.clz32",
          "es6.math.cosh",
          "es6.math.expm1",
          "es6.math.fround",
          "es6.math.hypot",
          "es6.math.imul",
          "es6.math.log1p",
          "es6.math.log10",
          "es6.math.log2",
          "es6.math.sign",
          "es6.math.sinh",
          "es6.math.tanh",
          "es6.math.trunc",
          "es6.map",
          "es6.set",
          "es6.weak-map",
          "es6.weak-set"
        ]
      }
    ],
    "stage-2"
  ],
  "plugins": [
    "lodash",
    "transform-runtime",
    "syntax-dynamic-import",
    [
      "babel-plugin-transform-builtin-extend",
      {
        "globals": ["Error", "Array"]
      }
    ]
  ],
  "comments": true
}