janpaepke · July 4, 2022 09:47
diff --git a/useEffect_cleanup.js b/useEffect_cleanup.js
 useEffect(() => {
 	const timeoutId = setTimeout(() => alert('one second has passed!'), 1000);
 	return () => {
 		clearTimeout(timeoutId);
 	};
 }, []);
	useEffect(() => {
	const timeoutId = setTimeout(() => alert('one second has passed!'), 1000);
	return () => {
	clearTimeout(timeoutId);
	};
	}, []);
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