.babelrc

{
  "presets": [
    [
      "@babel/preset-env",
      {
        "loose": false,
        "modules": "commonjs",
        "spec": true,
        "useBuiltIns": false,
        "debug": false
      }
    ]
  ],
  "env": {
    "esm": {
      "presets": [
        [
          "@babel/preset-env",
          {
            "loose": false,
            "modules": false,
            "spec": true,
            "useBuiltIns": false,
            "debug": false
          }
        ]
      ]
    }
  },
  "plugins": [
    "@babel/plugin-transform-property-mutators",
    [
      "@babel/plugin-transform-runtime",
      {
        "corejs": false,
        "helpers": false,
        "regenerator": false,
        "useESModules": false
      }
    ]
  ]
}