.babelrc

{
  "presets": [
    [
      "@babel/preset-env",
      {
        "modules": false,
        "targets": {
          "browsers": ["last 2 years"]
        }
      }
    ]
  ],
  "plugins": ["@babel/plugin-transform-runtime"],
  "env": {
    "test": {
      "presets": ["@babel/preset-env"],
      "plugins": ["@babel/plugin-transform-modules-commonjs"]
    }
  }
}