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React Quizzes
Test your knowledge of React quirks.
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Sort: most tried
tag: React
1. React re-render 1
React
medium
20443 tried
22. useState()
React
Hooks
hard?
8908 tried
4. React re-render 4
React
medium
8589 tried
12. useEffect
React
medium
7915 tried
2. React re-render 2 - memo()
React
easy
7829 tried
13. useRef
React
Hooks
medium
6865 tried
3. React re-render 3
React
easy
6348 tried
6. React re-render 5 - context
React
medium
6162 tried
5. Automatic batching 1
React
medium
5312 tried
10. useLayoutEffect()
React
Hooks
medium
5243 tried
7. Suspense 1
React
medium
4931 tried
9. React re-render 6 - Context
React
easy
3929 tried
8. Suspense 2
React
medium
3767 tried
15. memo 2
React
easy
3642 tried
16. event callback
React
Hooks
easy
3606 tried
17. flushSync()
React
Hooks
medium
3510 tried
14. async event handler
React
medium
3481 tried
19. lazy initial state
React
Hooks
medium
3289 tried
11. callback props
React
easy
3264 tried
29. useEffect() timing IV
React
Hooks
medium
3132 tried
18. useRef 2
React
Hooks
medium
3095 tried
21. useEffect() II
React
Hooks
medium
2171 tried
20. Error Boundary
React
medium
1886 tried
26. useEffect() III
React
Hooks
medium
1807 tried
24. useEffect() timing
React
Hooks
easy
1593 tried
27. useEffect() timing II
React
Hooks
easy
1256 tried
28. useEffect() timing III
React
Hooks
medium
1100 tried
23. Suspense 3
React
Hooks
medium
1093 tried
25. all kinds of effects
React
Hooks
medium
978 tried