import { useLayoutEffect , useState } from "react" ; interface WindowSize { width : number ; height : number ; } export function useWindowSize ( ) { const [ size , setSize ] = useState < WindowSize > ( { width : 0 , height : 0 } ) ; useLayoutEffect ( ( ) => { function updateSize ( ) { setSize ( { width : window . innerWidth , height : window . innerHeight } ) ; } window . addEventListener ( "resize" , updateSize ) ; updateSize ( ) ; return ( ) => window . removeEventListener ( "resize" , updateSize ) ; } , [ ] ) ; return size ; }