.babelrc

{
  "presets": [
    "@babel/react"
  ],
  "plugins": [
    "@babel/plugin-proposal-export-default-from",
    "@babel/plugin-proposal-export-namespace-from",
    [
      "@babel/plugin-transform-runtime",
      {
        "corejs": false,
        "helpers": true,
        "regenerator": true,
        "useESModules": false
      }
    ]
  ],
  "env": {
    "test": {
      "presets": [
        "@babel/preset-env"
      ]
    },
    "es2015": {
      "presets": [
        [
          "@babel/preset-env",
          {
            "loose": true,
            "modules": false
          }
        ]
      ]
    },
    "cjs": {
      "presets": [
        [
          "@babel/preset-env",
          {
            "loose": true,
            "modules": "commonjs"
          }
        ]
      ]
    }
  }
}