Steps of solving ReactDOM.render warning.

step: 1

Go to project (index.js) file.

step: 2 (Replace)

  • import ReactDOM from 'react-dom';

==> import {createRoot} from "react-dom/client"

step: 3 (Replace)

  • ReactDOM.render( <React.StrictMode> </React.StrictMode>, document.getElementById('root') );

==>

  • const container=document.getElementById('root');
  • const root=createRoot(container);
  • root.render(<React.StrictMode>
  • App
  • </React.StrictMode>);