import { useEffect, useRef } from 'react'; function useInterval(callback: () => void, delay: number): void { const savedCallback = useRef<() => void>(); useEffect(() => { savedCallback.current = callback; }); useEffect(() => { function tick(): void { if (savedCallback.current) { savedCallback.current(); } } const id = setInterval(tick, delay); return (): void => clearInterval(id); }, [delay]); } export default useInterval;