{
  "presets": [
    [
      "@babel/preset-env",
      {
        "targets": {
          "browsers": "Chrome >= 49, Firefox >= 45, Edge >= 13, Safari >= 10, iOS >= 10, Android >= 79"
        }
      }
    ],
    "@babel/typescript"
  ],
  "plugins": [
    "@babel/plugin-proposal-class-properties"
  ]
}