Q. What is the difference between useEffect and useLayoutEffect?

  • (A) useLayoutEffect fires synchronously after all DOM mutations, useEffect fires asynchronously after paint
  • (B) useEffect is only for class components
  • (C) useLayoutEffect is deprecated
  • (D) There is no difference
💬 Discuss
✅ Correct Answer: (A) useLayoutEffect fires synchronously after all DOM mutations, useEffect fires asynchronously after paint
Explanation: useLayoutEffect runs before the browser paints, useful for measuring layout.

Published by Mr. Dubey ⭐ 110.47K Points at 08-Jun-2025 03:32 pm in React Js

Explanation by: Mr. Dubey
useLayoutEffect runs before the browser paints, useful for measuring layout.

💬 Discussion

📊 Question Analytics

👁️
70
Total Visits
📽️
1 y ago
Published
🎖️
Mr. Dubey
Publisher
📈
87%
Success Rate