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javascript
2 years ago
475 B
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import { useEffect, useRef } from 'react'; export default function useInterval(callback, delay) { const savedCallback = useRef(null); useEffect(() => { savedCallback.current = callback; }, [callback]); useEffect(() => { function handleCallback() { savedCallback.current(); } if (delay !== null) { const id = setInterval(handleCallback, delay); return () => { clearInterval(id); }; } }, [callback, delay]); }
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