Q. Which React hook lets you optimize expensive calculations by caching their results?

  • (A) useMemo
  • (B) useState
  • (C) useCallback
  • (D) useEffect
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✅ Correct Answer: (A) useMemo
Explanation: useMemo caches the result of a calculation until dependencies change.

Published by Mr. Dubey ⭐ 109.99K Points at 08-Jun-2025 03:31 pm in React Js

Explanation by: Mr. Dubey
useMemo caches the result of a calculation until dependencies change.

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