React Quizzes

Test your knowledge of React quirks.

• 1. React re-render 1Reactmedium6876 accepted
• 2. React re-render 2 - memo()Reacteasy5694 accepted
• 3. React re-render 3 Reacteasy5483 accepted
• 4. React re-render 4Reactmedium4484 accepted
• 6. React re-render 5 - contextReactmedium3718 accepted
• 5. Automatic batching 1Reactmedium3699 accepted
• 9. React re-render 6 - ContextReacteasy2851 accepted
• 12. useEffectReactmedium2837 accepted
• 11. callback propsReacteasy2634 accepted
• 7. Suspense 1Reactmedium2594 accepted
• 8. Suspense 2Reactmedium2298 accepted
• 15. memo 2Reacteasy2169 accepted
• 13. useRefReactHooksmedium2124 accepted
• 10. useLayoutEffect()ReactHooksmedium2066 accepted
• 16. event callbackReactHookseasy2064 accepted
• 19. lazy initial stateReactHookseasy1937 accepted
• 14. async event handlerReactmedium1849 accepted
• 22. useState()ReactHooksmedium1594 accepted
• 21. useEffect() IIReactHookseasy1394 accepted
• 17. flushSync()ReactHooksmedium1328 accepted
• 24. useEffect() timingReactHookseasy1259 accepted
• 20. Error BoundaryReacteasy1178 accepted
• 26. useEffect() IIIReactHooksmedium1147 accepted
• 27. useEffect() timing IIReactHookseasy1067 accepted
• 23. Suspense 3ReactHooksmedium834 accepted
• 29. useEffect() timing IVReactHooksmedium818 accepted
• 28. useEffect() timing IIIReactHooksmedium801 accepted
• 25. all kinds of effectsReactHooksmedium757 accepted
• 30. Error Boundary Once MoreReacthard?232 accepted
• 31. useRef IIReactHooksmedium230 accepted