Vibe codingMediumvc-g122

Subject Ai code reviewLevel Mid–Senior~15 minCommon in Algorithms & data structures interviewsIndustries Software development

Question

An AI wrote this component to derive a label and report it upward. It crashes with 'Too many re-renders' or logs a warning about updating a component during render. Spot the antipattern.

tsx

1function Price({ amount, onLabel }: Props) {2  const label = amount > 100 ? 'Premium' : 'Standard';3  onLabel(label);             // tell the parent4  const [seen, setSeen] = useState(false);5  setSeen(true);             // mark as seen6  return <span>{label}</span>;7}

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

Describe your solution

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.