Top 20 most asked ReactJS Questions in Interviews.

Reference : ReactJS

1. What is react?

2. What are the advantages of using react?

3. What are the limitations of using react?

4. What is useState() in react?

5. What are keys in react?

6. What is JSX?

7. What is the difference between functional and class component?

8. What is Virtual DOM?

9. What are props in react?

10. Explain react state and props.

11. Explain about the types of side effects in react.

12. What is prop drilling in react?

13. What are react hooks?

14. What is the use of useEffect() hook?

15. What is ref in react?

16. Explain strict mode in react.

17. How to prevent re-render in react?

18. Name few techniques to optimize react app performance.

19. How to pass data between react components?

20. What are higher order components?

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