Intermediate

Intermediate React Interview Questions

Ready to go deeper? These 31 intermediate React interview questions bridge the gap between the basics and senior-level depth, focusing on the practical patterns and trade-offs interviewers probe for mid-level roles.

31Questions31Intermediate

31 React questions

  1. 1What is Context API in ReactJSIntermediate
  2. 2React Interview Question 2 (Free)Intermediate
  3. 3Implement infinite scrollingIntermediate
  4. 4Explain memoizationIntermediate
  5. 5How do keys work in React?Intermediate
  6. 6What is React component composition vs inheritance?Intermediate
  7. 7What is React immutable state and why is it important?Intermediate
  8. 8What are React hooks lifecycle equivalents?Intermediate
  9. 9What is React higher-order component (HOC)?Intermediate
  10. 10What is React render props pattern?Intermediate
  11. 11What is React server-side rendering (SSR)?Intermediate
  12. 12What is React event pooling?Intermediate
  13. 13What is React reconciliation key collision issue?Intermediate
  14. 14What is SyntheticEvent in React?Intermediate
  15. 15What is React event delegation?Intermediate
  16. 16What is React key reconciliation problem?Intermediate
  17. 17What is memoization in React?Intermediate
  18. 18What is useRef and when should you use it?Intermediate
  19. 19What is React batching and how does it work in React 18?Intermediate
  20. 20What is code splitting in React?Intermediate
  21. 21What is React Profiler?Intermediate
  22. 22What is React Portals?Intermediate
  23. 23What is batching in React?Intermediate
  24. 24What causes unnecessary re-renders in React?Intermediate
  25. 25What is React Strict Mode?Intermediate
  26. 26How do error boundaries work in React and what errors do they not catch?Intermediate
  27. 27What is React context and when should you use it instead of prop drilling?Intermediate
  28. 28What is useEffect used for and how do you avoid common pitfalls with dependency arrays?Intermediate
  29. 29What are React hooks and what rules must you follow when using them?Intermediate
  30. 30What is the virtual DOM in React and why does React use it?Intermediate
  31. 31React Advanced Interview Question 8Intermediate

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Frequently asked questions

How many intermediate React interview questions are there?

This page covers 31 intermediate-level React interview questions, each with a short answer, a deeper explanation, code examples, common mistakes and follow-up questions.

Are these React questions suitable for intermediate interviews?

Yes. Every question is tagged intermediate difficulty and chosen to match what interviewers expect at that level, so you can focus your preparation without wading through questions that are too easy or too hard.

How should I practise these React questions?

Read the short answer first, attempt the question yourself, then expand the detailed explanation and real-world example. Review the common mistakes and follow-up questions to make sure you can handle interviewer probing.