JavaScript exercises

Multiple-choice questions

Warning: some questions are quite challenging and require a good knowledge of JavaScript (especially its weird parts).

Server-side quiz | 122 questions | Free
- random
- default
Browser-side quiz | 19 questions | Free
- random
- default

Bite-sized, vetted and tested exercises

My personal selection of JavaScript exercises to practice regularly.
No storytelling, no gamification, no riddle, minimal use of math (basic arithmetic).
Series of exercises to become and stay a proficient JavaScript web developer.

Basics | 81 exercises | Premium
- random
- default
- sample (free)
Object-oriented | 45 exercises | Premium
- random
- default
Promises | 43 exercises | Premium
- random
- default

Other exercises

Easy syntax exercises on W3Schools (67 exercises).
Browser-side quiz on W3Schools (25 questions).
JavaScript basics on JSchallenger (101 exercises).
JavaScript DOM on JSchallenger (19 exercises).
Random JavaScript exercises on JSchallenger (80 exercises).
LeetCode (1000+ problems).
Exercism (142 exercises).
Math-related problems on Project Euler (841 problems).
Edabit (2500+ challenges).
Codewars (6000+ exercises).
JS Is Weird (25 questions).
JavaScript Quiz (10 questions).
CodesCracker (several quizzes).
JavaTpoint (several quizzes).