30-seconds-of-code/snippets/useIsomporphicEffect.md

title, tags, expertise, author, firstSeen, lastUpdated

title	tags	expertise	author	firstSeen	lastUpdated
React useIsomporphicEffect hook	hooks,effect	beginner	chalarangelo	2021-09-29T05:00:00-04:00	2021-10-13T19:29:39+02:00

Eesolves to useEffect() on the server and useLayoutEffect() on the client.

• Use typeof to check if the Window object is defined. If it is, return the useLayoutEffect(). Otherwise return useEffect().

const useIsomorphicEffect =
  typeof window !== 'undefined' ? React.useLayoutEffect : React.useEffect;

const MyApp = () => {
  useIsomorphicEffect(() => {
    window.console.log('Hello');
  }, []);

  return null;
};

ReactDOM.render(<MyApp />, document.getElementById('root'));