.babelrc

{
  "plugins": [
    "check-es2015-constants",
    "transform-es2015-arrow-functions",
    "transform-es2015-block-scoped-functions",
    "transform-es2015-block-scoping",
    "transform-es2015-classes",
    "transform-es2015-computed-properties",
    "transform-es2015-destructuring",
    "transform-es2015-duplicate-keys",
    "transform-es2015-for-of",
    "transform-es2015-function-name",
    "transform-es2015-object-super",
    "transform-es2015-parameters",
    "transform-es2015-shorthand-properties",
    "transform-es2015-spread",
    "transform-es2015-sticky-regex",
    "transform-es2015-template-literals",
    "transform-es2015-typeof-symbol",
    "transform-es2015-unicode-regex",
    "transform-regenerator",
    "transform-object-rest-spread"
  ],
  "env": {
    "commonjs": {
      "ignore": [ "**/__tests__/" ],
      "plugins": ["transform-es2015-modules-commonjs"]
    },
    "es": {
      "ignore": [ "**/__tests__/" ]
    },
    "rollup": {
      "ignore": [ "**/__tests__/" ],
      "plugins": ["external-helpers"]
    },
    "test": {
      "presets": [
        "es2015",
        "stage-2"
      ]
    }
  }
}