Freshers (0–2 years)

JavaScript Interview Questions for Freshers

Preparing for your first JavaScript interviews? This set is curated for freshers and early-career developers (0–2 years): the 29 questions that come up most for entry-level roles, each with a clear answer, example code and follow-ups.

29Questions14Beginner15Intermediate

29 JavaScript questions

  1. 1What are higher-order functions?Intermediate
  2. 2What is spread and rest operator?Intermediate
  3. 3What is destructuring in JS?Intermediate
  4. 4How does fetch API work?Intermediate
  5. 5What are ES modules?Intermediate
  6. 6What is debounce and throttle?Intermediate
  7. 7What is event loop?Intermediate
  8. 8What is prototypal inheritance?Intermediate
  9. 9What is the this keyword in JavaScript?Intermediate
  10. 10What are template literals?Beginner
  11. 11What is event bubbling?Beginner
  12. 12What is DOM manipulation?Beginner
  13. 13Array map, filter, reduce usageBeginner
  14. 14What is async vs sync execution?Beginner
  15. 15What are JavaScript promises?Beginner
  16. 16Difference between == and ===Beginner
  17. 17What are closures in JavaScript?Beginner
  18. 18What is hoisting in JavaScript?Beginner
  19. 19What is the difference between var, let, and const?Beginner
  20. 20JavaScript Interview Question 1 (Free)Beginner
  21. 21JavaScript Interview Question 5 (Free)Intermediate
  22. 22JavaScript Interview Question 4 (Free)Beginner
  23. 23JavaScript Interview Question 2 (Free)Intermediate
  24. 24What is event delegation?Intermediate
  25. 25Throttle vs DebounceIntermediate
  26. 26What are closures in JavaScript?Intermediate
  27. 27JavaScript Advanced Interview Question 10Beginner
  28. 28JavaScript Advanced Interview Question 8Intermediate
  29. 29JavaScript Advanced Interview Question 7Beginner

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Frequently asked questions

Which JavaScript questions do freshers (0–2 years) get asked?

This page collects 29 JavaScript interview questions aligned with freshers (0–2 years), ranging across the difficulty levels that match that experience band.

How do I prepare for a JavaScript interview with my experience level?

Work through these questions in order, make sure you can explain each answer out loud, and pay attention to the real-world examples and follow-ups — interviewers at this level care as much about reasoning as the final answer.

Do the answers include code and examples?

Yes — answers include explanations, code examples where relevant, common mistakes to avoid and follow-up questions so you are ready for the full interview conversation.