Counter interval captures stale

Code reviewCode quality & reviewMid–Senior~18 min

Review this React hook.

What a strong answer looks like

Separate real bugs from style. Rank issues by severity, point at the root cause rather than the symptom, and suggest a concrete fix, specific and kind.

0:00 of about 18 min

Mark a line and say what kind of problem it is.0 findings

1function Counter() {

2 const [count, setCount] = useState(0);

3 useEffect(() => {

4 const id = setInterval(() => setCount(count + 1), 1000);

5 return () => clearInterval(id);

6 }, []);

Which questions mattered is sealed until you submit. Telling you now would just be handing over the edge cases.