{
  "presets": ["@babel/preset-env"],
  "plugins": [
    ["module-resolver", { root: ["./src/js"] }],
    "@babel/plugin-proposal-class-properties",
    ["@babel/plugin-transform-runtime", { regenerator: true }]
  ],

  // Environment Specific
  env: {
    test: {
      plugins: [
        // Jest runs in node which only supports CommonJS modules
        // Need to transform ES modules into CommonJS modules for
        // test environment.
        // See: https://jestjs.io/docs/en/webpack.html#using-with-webpack-2
        '@babel/plugin-transform-modules-commonjs'
      ]
    }
  }
}