What is the difference between createRoot and ReactDOM. render When rendering a React component to the DOM, the methods createRoot and ReactDOM render are both used, but they differ in a few ways The conventional technique for rendering a React component to a particular DOM element—typically the root of your app—is ReactDOM render Consider this: ReactDOM render(<App >, document getElementById('root'));
In react 18 how to I use createRoot to render a class component? In either case, you pass the React element to render to it (usually creating the element via JSX), as shown by the page the dev version of React v18 links to if you use the old way: const root = ReactDOM createRoot(document getElementById("root")); root render(<Example >);
reactjs - You are calling ReactDOMClient. createRoot() on a container . . . import { createRoot } from 'react-dom client'; const root = createRoot(childDomElement); root render(reactElement); I am getting the following warning: You are calling ReactDOMClient createRoot() on a container that has already been passed to createRoot() before Instead, call root render() on the existing root instead if you want to update it
reactjs - In react, How do I import createRoot? - Stack Overflow I am experimenting with React In the following script I have imported 'createRoot' The browser console throws a warning: You are importing createRoot from "react-dom" which is not supported You should instead import it from "react-dom client" However, in my script I have imported createRoot from 'react-dom client' What is going wrong here?
I cant use createRoot function in react-dom client npm install --save-dev @types react@18 @types react-dom@18 Don't rely on your IDE to pick up everything correctly In my case I had to manually type the import and use createRoot like this: import { createRoot } from 'react-dom client'; const root = createRoot(document getElementById('root')!); notice the '!' root render(<App >);
React Testing Library gives console error for ReactDOM. render in React 18 to be honest, at first, I didn't believe your answer because I just create new app using create-react-app so I guessed that the react and react-testing library should be latest version but in fact react version was 18 but testing library version was old, so I tried your answer and the issue disappeared