Top 55 JavaScript Interview Questions Answers 2026 (With PDF)

What are the top JavaScript interview questions and answers that I should prepare before going for my job interview? If this is your question, then we have got everything covered in this comprehensive write-up that covers basic to advanced JavaScript interview questions and answers for freshers and experienced professionals both.

JavaScript is among the most popular client-side programming languages in 2026. It is seeing massive growth over the last half a decade, especially in dynamic and progressive web development. 

That’s the reason an increasing number of aspiring developers and programmers are learning it in an individual manner or as part of superior web development courses in India. As a versatile language, JS brings plenty of new opportunities and possibilities. 

While it is famous as one of the top front-end development languages, it can also be used for back-end development using NodeJS. Furthermore, it plays a good role in the development of mobile apps, desktop apps, and PWAs (progressive web apps) as well. 

So, if you are looking to kickstart your career in web development or looking to switch from your current job, then knowing the top JavaScript interview questions and answers is crucial. The right questions will help you become well-prepared and crack the job interview to land that dream job.

This write-up is dedicated to you, if you have been searching for:

• JavaScript interview questions for freshers
• JavaScript interview questions for experienced (2-10 years)
• JS interview questions on specific topics like OOPS, promise, closure, hoisting, etc.
• JavaScript interview questions PDF (free download)

Let’s get started!