.babelrc

{
  presets: ["stage-0"],
  plugins: [
    // es2015
    // 'check-es2015-constants',
    'transform-es2015-arrow-functions',
    'transform-es2015-block-scoped-functions',
    'transform-es2015-block-scoping',

    // using built-in support for classes
    // 'transform-es2015-classes',
    
    'transform-es2015-computed-properties',
    'transform-es2015-destructuring',
    'transform-es2015-for-of',
    'transform-es2015-function-name',
    'transform-es2015-literals',
    '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',
    'transform-async-to-generator'
  ]
}