.babelrc

{
  /*"presets": ["es2015", { "loose": true, "modules": false }, "es2016"],*/
  "plugins": [
    /* https://babeljs.io/docs/plugins/preset-es2015/ */
    /* https://github.com/babel/babel/blob/master/packages/babel-preset-es2015/src/index.js */
    "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-literals",
    /* Rollup doesn't like this. */
    /*"transform-es2015-modules-commonjs",*/
    "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",
    /* https://babeljs.io/docs/plugins/preset-es2016/ */
    "transform-exponentiation-operator"
  ]
}