.babelrc

{
  "env": {
    // Compatibility Profile.
    // ES5 output and CommonJS module format.
    "es5_cjs": {
      "presets": ["@babel/preset-env", "@babel/preset-react"]
    },
    // Future Profile.
    // ES6 output with no module transformation (ES Modules syntax).
    "es": {
      "presets": [
        [
          "@babel/preset-env",
          {
            "modules": false,
            "targets": {
              "node": "6.5"
            }
          }
        ],
        "@babel/preset-react"
      ]
    },
    // Bundled Profile.
    // ES5 output and UMD module format.
    "umd": {
      "presets": [
        [
          "@babel/preset-env",
          {
            "modules": false
          }
        ],
        "@babel/preset-react"
      ]
    },
    // Jest Profile.
    // To be used by jest tests.
    "test": {
      "presets": ["@babel/preset-env", "@babel/preset-react"]
    }
  }
}