superset/superset-frontend/packages/superset-ui-demo/.babelrc.json

{
  "sourceType": "unambiguous",
  "presets": [
    [
      "@babel/preset-env",
      {
        "targets": {
          "chrome": 100,
          "safari": 15,
          "firefox": 91
        }
      }
    ],
    "@babel/preset-typescript",
    "@babel/preset-react"
  ],
  "plugins": []
}