Beginner JavaScript Interview Questions
Starting out with JavaScript? These 14 beginner-friendly JavaScript interview questions cover the fundamentals hiring managers expect from entry-level candidates — with plain-English answers, runnable code and the mistakes that trip people up.
14 JavaScript questions
- 1What are template literals?Beginner
- 2What is event bubbling?Beginner
- 3What is DOM manipulation?Beginner
- 4Array map, filter, reduce usageBeginner
- 5What is async vs sync execution?Beginner
- 6What are JavaScript promises?Beginner
- 7Difference between == and ===Beginner
- 8What are closures in JavaScript?Beginner
- 9What is hoisting in JavaScript?Beginner
- 10What is the difference between var, let, and const?Beginner
- 11JavaScript Interview Question 1 (Free)Beginner
- 12JavaScript Interview Question 4 (Free)Beginner
- 13JavaScript Advanced Interview Question 10Beginner
- 14JavaScript Advanced Interview Question 7Beginner
Explore more JavaScript interview questions
By Level
By Experience
By Year
Or browse all JavaScript interview questions.
Frequently asked questions
How many beginner JavaScript interview questions are there?
This page covers 14 beginner-level JavaScript interview questions, each with a short answer, a deeper explanation, code examples, common mistakes and follow-up questions.
Are these JavaScript questions suitable for beginner interviews?
Yes. Every question is tagged beginner 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 JavaScript 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.