.babelrc

{
  "env": {
    "production": {
      "presets": [
        [
          "env",
          {
            "modules": false,
            "targets": {
              "browsers": [
                "> 1%",
                "last 2 versions",
                "not ie <= 8"
              ]
            }
          }
        ],
        "stage-2"
      ],
      "plugins": [
        [
          "transform-runtime",
          {
            "helpers": false,
            "polyfill": false,
            "regenerator": true,
            "moduleName": "babel-runtime"
          }
        ]
      ]
    },
    "development": {
      "presets": [
        "es2016"
      ],
      "plugins": [
        "transform-object-rest-spread",
        "syntax-dynamic-import"
      ]
    }
  }
}