useEffect(() => { //your code goes here return () => { //your cleanup code codes here }; },[]);
useEffect(() => { },[]);
function App() { const [shouldRender, setShouldRender] = useState(true); useEffect(() => { setTimeout(() => { setShouldRender(false); }, 5000); }, []); // don't render if( !shouldRender ) return null; // JSX, if the shouldRender is true return <ForExample />; }