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Ultimate Guide to Crack Frontend System Design Interviews
How to create a flat version of a deeply nested array? [Programming Interview Question]
All Levels
23,510
Solve
How to build a custom timer hook in React.js? | useTimer | JavaScript Interview Question
All Levels
20,765
Solve
Build A Mini Clone Of Google Calendar | Frontend Coding Challenge | JavaScript Interview Questions | DevKode DOM Challenge
All Levels
14,996
Solve
Implement Debounce Function | Flipkart UI - JavaScript Interview Questions
All Levels
12,454
Solve
Implement Accordion Component in React.js | JavaScript Interview Question
Intermediate
12,590
Solve
How to implement Event Emitter in JavaScript? | Facebook Interview Question
Intermediate
15,028
Solve
How to implement DOM like structure tree!? | Frontend Interview Question | Advanced JavaScript
Advanced
9,609
Solve
How to create OTP Input Component? | Frontend Coding Challege | JavaScript | HTML | CSS | React.js
Intermediate
9,420
Solve
How to build a File Explorer? Atlassian Frontend Machine Coding Round Question | JavaScript Interview Question | React.js
Intermediate
21,495
Solve
Build Country Capital Game | Microsoft Frontend Interview Question | JavaScript | React.js
All Levels
14,256
Solve
How to implement custom Array.prototype.some method?
Beginner
29
Solve
How to implement custom Array.prototype.forEach method?
Beginner
162
Solve
Issue Tracker UI
Beginner
216
Solve
Build a Cricket Score Board
Intermediate
496
Solve
Build a Typing Speed Test Component
Intermediate
436
Solve
Interactive Color Picker with Throttle
Intermediate
298
Solve
Promise Scheduler
Advanced
927
Solve
Progress Bar with Controls
Beginner
840
Solve
Flipping Card Component
Beginner
711
Solve
ComposeAsync
Intermediate
785
Solve
Phone Home Screen
Intermediate
1,012
Solve
Domain Operation Simulator
Beginner
1,205
Solve
Implement listenTo function
Beginner
1,213
Solve
Company Structure Validator
Intermediate
1,467
Solve
Compare Semantic Versions
Beginner
1,137
Solve
Build Boggle Dictionary
Advanced
1,524
Solve
Shopping Cart Checkout
Beginner
1,386
Solve
Implement a Timeout-Based API Wrapper with Optional Retry
Intermediate
2,453
Solve
Measure Function Execution Time
Intermediate
1,716
Solve
useObjectState
Intermediate
1,493
Solve
Cinema Hall Layout Structure
Intermediate
3,412
Solve
Breadcrumb Chain Problem
Beginner
3,063
Solve
Build an API Client
Intermediate
2,936
Solve
Function Call Counter
All Levels
2,559
Solve
Straws on the Board
Advanced
3,689
Solve
Chess Path Finder Visualiser
Intermediate
2,839
Solve
Count Total Comments
Beginner
3,734
Solve
String Compression and Decompression
All Levels
3,896
Solve
Dynamic Table Generator
Beginner
4,149
Solve
What would be the return value (if any)?
Beginner
3,897
Solve
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Study Guides
See all
Top JavaScript Array Interview Questions | Problem Solving | Array Polyfills
Frontend Coding Challenges | JavaScript | ReactJS | DevKode DOM Challenge
Top JavaScript Multiple Choice Questions (MCQ) with Answers | Frontend Interview Questions | Beginner Friendly
Advanced JavaScript Interview Questions | Problem Solving | Frontend Interview Questions
Top JavaScript Promises Interview Questions | Problem Solving | Promise Polyfills
Video Tutorials
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Frontend Debugging Techniques That Every Engineer Must Know | Understanding Git Bisect | Part 2
Frontend Debugging Techniques That Every Engineer Must Know | Part 1
JavaScript Promises Fundamentals Every Engineer Should Know | Part 1
JavaScript Promises Fundamentals Every Engineer Should Know | Part 2
What Every React Developer Should Know!? | Part 1 | Stale Closures
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