Frontend Coding Interviews in JavaScript
Free Intermediate course · 10 lessons · 3 weeks · Certificate on completion
Practise the JavaScript and UI coding questions asked in frontend interviews. Across 10 lessons you'll move from fundamentals to a portfolio-ready outcome — at your own pace, with quizzes after each lesson and a final exam to certify your mastery.
What you'll learn
- Frontend interview formats
- Implementing debounce and throttle
- Promise utilities
- Deep clone and equality
- Event emitter
- DOM manipulation tasks
Skills you'll pick up
- Frontend interview formats
- Implementing debounce and thro
- Promise utilities
- Deep clone and equality
- Event emitter
- DOM manipulation tasks
Tools covered
- Frontend Interviews
- Real-world projects
- Quizzes
- Final exam
Course modules
Module 1: Frontend interview formats
Module 1 of Frontend Coding Interviews in JavaScript. 3 lessons · 3h
Module 2: Deep clone and equality
Module 2 of Frontend Coding Interviews in JavaScript. 3 lessons · 3h
Module 3: Build an autocomplete
Module 3 of Frontend Coding Interviews in JavaScript. 2 lessons · 2h
Module 4: Accessibility in interviews
Module 4 of Frontend Coding Interviews in JavaScript. 2 lessons · 2h
Lessons in this course
- Frontend interview formats
- Implementing debounce and throttle
- Promise utilities
- Deep clone and equality
- Event emitter
- DOM manipulation tasks
- Build an autocomplete
- Build a modal
- Accessibility in interviews
- Mock interview
Instructor
Kenji Watanabe — Web Performance Engineer
Kenji Watanabe is a Web Performance Engineer with years of hands-on experience teaching Frontend Interviews to thousands of learners worldwide.
Certificate
Finish every lesson and pass the final exam to earn a free, verifiable Learnera certificate for Frontend Coding Interviews in JavaScript. It can be downloaded as a PDF and shared on LinkedIn.
Career outcomes
Median global salary $130,000 per year · median India salary ₹18,20,000 per year · 30,752 open roles worldwide
- Frontend Interviews Specialist
- Senior Frontend Interviews Lead
- Frontend Interviews Consultant
Frequently asked questions
Is the Frontend Coding Interviews in JavaScript course free?
Yes. Every Learnera course, including Frontend Coding Interviews in JavaScript, is completely free — lessons, quizzes, the final exam, and the certificate.
How long does Frontend Coding Interviews in JavaScript take?
10 lessons, typically completed in 3 weeks at a comfortable pace.
Do I get a certificate?
Yes — pass the final exam and you receive a free, verifiable certificate you can share on LinkedIn.