Code Room
Vibe codingHard
Question
An AI memoized this submit handler with useCallback to keep its identity stable. After the user edits the form, submitting sends the OLD form values. Find the bug.
const [form, setForm] = useState({ name: '', email: '' });const submit = useCallback(() => { api.save(form);}, []);// passed to a memoized <Toolbar onSave={submit} />What a strong answer looks like
Treat the AI’s output as a draft to verify, not an answer to trust. Name the specific flaw and the input that triggers it, say how you’d catch it — tests, edge cases, reading critically — and how you’d re-prompt or decompose to get it right.
Learn the concepts
Vibe coding: describe the solution in plain language (or narrate it) and the coach grades your approach. Generating runnable code from your description is coming next.
Run or narrate your approach, then ask the coach.