Q. What will happen if you forget to include a key in a list item?

  • (A) React will crash
  • (B) Nothing, it's optional
  • (C) React will throw an error
  • (D) React may render inefficiently
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✅ Correct Answer: (D) React may render inefficiently
Explanation: Without keys, React has difficulty optimizing list rendering.

Published by Mr. Dubey ⭐ 111.54K Points at 08-Jun-2025 03:13 pm in React Js

Explanation by: Mr. Dubey
Without keys, React has difficulty optimizing list rendering.

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