Q. Which statement is true about React keys?

  • (A) They are required for every prop
  • (B) They help identify which items changed in a list
  • (C) They improve load times
  • (D) They are used for authentication
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✅ Correct Answer: (B) They help identify which items changed in a list
Explanation: React uses keys to track elements in a list during reconciliation.

Published by Mr. Dubey ⭐ 111.54K Points at 08-Jun-2025 03:19 pm in React Js

Explanation by: Mr. Dubey
React uses keys to track elements in a list during reconciliation.

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