BFE
.dev
EN
Practice
Explore
EN
React Quizzes
Test your knowledge of React quirks.
Sort
Difficulty
Solved status
Sort: most tried
tag: React
tag: Hooks
1. React re-render 1
React
medium
21358 tried
22. useState()
React
Hooks
hard?
9247 tried
4. React re-render 4
React
medium
9027 tried
12. useEffect
React
medium
8302 tried
2. React re-render 2 - memo()
React
easy
8282 tried
13. useRef
React
Hooks
medium
7064 tried
3. React re-render 3
React
easy
6571 tried
6. React re-render 5 - context
React
medium
6388 tried
5. Automatic batching 1
React
medium
5548 tried
10. useLayoutEffect()
React
Hooks
medium
5476 tried
7. Suspense 1
React
medium
5122 tried
9. React re-render 6 - Context
React
easy
4117 tried
8. Suspense 2
React
medium
3963 tried
15. memo 2
React
easy
3776 tried
16. event callback
React
Hooks
easy
3726 tried
17. flushSync()
React
Hooks
medium
3642 tried
14. async event handler
React
medium
3637 tried
29. useEffect() timing IV
React
Hooks
medium
3449 tried
19. lazy initial state
React
Hooks
easy
3444 tried
11. callback props
React
easy
3437 tried
18. useRef 2
React
Hooks
medium
3246 tried
21. useEffect() II
React
Hooks
medium
2268 tried
26. useEffect() III
React
Hooks
medium
2033 tried
20. Error Boundary
React
medium
1950 tried
24. useEffect() timing
React
Hooks
medium
1771 tried
27. useEffect() timing II
React
Hooks
easy
1409 tried
28. useEffect() timing III
React
Hooks
medium
1204 tried
23. Suspense 3
React
Hooks
medium
1140 tried
25. all kinds of effects
React
Hooks
medium
1016 tried