import { useState, useEffect } from 'react'; //https://stackoverflow.com/questions/36862334/get-viewport-window-height-in-reactjs function getWindowDimensions() { const { innerWidth: width, innerHeight: height } = window; return { width, height }; } export default function useWindowDimensions() { const [windowDimensions, setWindowDimensions] = useState(getWindowDimensions()); useEffect(() => { function handleResize() { setWindowDimensions(getWindowDimensions()); } window.addEventListener('resize', handleResize); return () => window.removeEventListener('resize', handleResize); }, []); return windowDimensions; }