Answers for "ncaught (in promise) ReferenceError: regeneratorRuntime is not defined"

react ReferenceError: regeneratorRuntime is not defined

// yarn add @babel/plugin-transform-runtime --dev
// yarn add @babel/runtime

//.babelrc

"plugins": [
    ["@babel/plugin-transform-runtime",
      {
        "regenerator": true
      }
    ]
  ],

ws.browser regeneratorRuntime is not defined angular

# First install the package
yarn add babel-polyfill --dev
# or
npm add babel-polyfill --dev
# Then require it in the angular.json
"scripts": ["node_modules/babel-polyfill/dist/polyfill.min.js"]