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JavaScript Interview Masterclass: Top 300 Questions (2026) (Udemy.com)

JavaScript, HTML5, CSS & Bootstrap: 300 Interview Questions (with PDF Revision Book)

4.7
380 reviews

Created by: Happy Rawat

Last updated December 2025

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What you will learn

  • How to Crack JavaScript Interviews
  • 200 JavaScript Interview Question and Answers
  • 50 JavaScript Coding and Scenario Based Interview Questions
  • JavaScript Interview Preparation

How it compares

Against the other 1,182 rated Udemy courses in IT & Software on CourseDuck:

  • Rating4.7 out of 5higher than 86% of them
  • Reviews380#642 of 1,183 by number of reviews
  • Length9.4 hourslonger than 69% of them
  • Last updatedDecember 2025more recently than 61% of them

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Course Description

One Stop Destination For All Interview Questions.


Top 300 Interview Questions and Answers Video Lectures with Revision PDF Books.


1. Top 200 JavaScript Interview Questions

    (Topics from which  questions are covered)

  1. Basics

  2. Variables and data types

  3. Operators & Conditions

  4. Arrays

  5. Loops

  6. Functions

  7. Strings

  8. DOM

  9. Error Handling

  10. Objects

  11. Events

  12. Closures

  13. Asynchronous programming: basics

  14. Asynchronous Programming: Promises

  15. Asynchronous Programming: Async Await

  16. Browser APIs and Web Storage

  17. Classes, constructors, this, and inheritance

  18. ECMAScript and Modules

  19. Security and Performance

  20. Scenario-based: Tricky Short Questions

  21. Scenario-based feature development questions

  22. JS Coding Questions


2. (BONUS) Top 100 HTML, CSS & Bootstrap Interview Questions

    (Topics from which  questions are covered)

  • HTML5  Chapters:   

  1. Basics & Document Structure

  2. HTML Elements & Tags – Part I

  3. HTML Elements & Tags – Part II

  4. HTML Attributes, HTML Links & Navigation

  5. HTML Lists & Tables

  6. HTML Images & Multimedia

  7. HTML Forms

  8. Best Practices & Deployment

  9. Responsiveness & Others


  • CSS  Chapters:  

  1. Basics & Implementation

  2. Selectors in CSS

  3. Layout and Positioning

  4. Responsive Design.


  • Bootstrap  Chapters:

  1. Bootstrap


Revision PDF Boos: All notes are present in PDF and PPT format in resources of the course.


Interview Preparation Tracker Sheet: All questions listed in this tracker excel. Just have a look just before the interviews.


About Instructor: The instructor has more than 15 years of experience in full-stack development and has given and taken more than 100 interviews in his career.


All the best for your interview preparation.
Read More Intermediate Intermediate Level product length iconTime: 9.4h

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Instructor Details

Happy Rawat

My name is Happy Rawat. I have over 15 years of experience in software development. I have given and taken more than 200 technical interviews in my career. I want to share my learnings with others.

My sole purpose is to help candidates fresher or experienced in CRACKING technical interviews.

Read More

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Reviews

4.7

380 ratings on Udemy

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By waseeque khan on 3/19/2026

best cousre in js script it is the very helpful series can you please help the excel and pdf how to downlod

By Udemy User on 5/1/2025

understanding a concept with question and answer format is typically easy...nice to learn....thank you

By Aj Kumar on 1/31/2025

Awesome content coverage and motivational advice! Many thanks to author. Expecting more such courses from you. Best wishes.

By Jeannie on 1/26/2025

The simple style of teaching is great with all sample interview questions that the instructor have included. It is awesome and helpful A++

By Priyanjali Nandi on 10/29/2024

The way he explains it is perfect and simple.

By Rishu singh on 8/27/2024

The way of explaining topics via diagrams and code and at last the definations is really good and easy to understand.

By Saiteja Nizam on 2/1/2024

Very useful course for brushing up topics before the interview and also can learn many topics overview which you are not aware of.

By Ievgen Tovtin on 11/3/2023

I like this course for visual thinking together with explanations. Thank you very much for video material, excel, pdf and more!

By Shashi Bhanu on 10/24/2023

Overall course was average. Pros: 1. Easy to understand and clear 2. Basics well covered 3. good flow of course. Cons: 1. Advance topics are not well covered, Many topics missing. 2. Programs in the last section is of basic nature (OK for college students but not for professionals) 3. Expected Advanced topics and programs.

By Utkarsh Choudhary on 10/9/2023

Really Helpful for Javascript Interview's. Covers Everything that is important in the interview. 10/10

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Overall Score : 94 / 100

JavaScript Interview Masterclass: Top 300 Questions (2026)
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  • Video Duration: icon 9.4h
  • Price: $19.99
  • Provider: icon Udemy
  • Updated: icon December 2025
  • Level: Intermediate Intermediate
  • Language: icon English
  • Certificate: icon Yes
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