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How to create a flat version of a deeply nested array? [Programming Interview Question]
All Levels
19,838
Solve
How to build a custom timer hook in React.js? | useTimer | JavaScript Interview Question
All Levels
18,159
Solve
Build A Mini Clone Of Google Calendar | Frontend Coding Challenge | JavaScript Interview Questions | DevKode DOM Challenge
All Levels
13,343
Solve
Implement Debounce Function | Flipkart UI - JavaScript Interview Questions
All Levels
10,585
Solve
Implement Accordion Component in React.js | JavaScript Interview Question
Intermediate
11,235
Solve
How to implement Event Emitter in JavaScript? | Facebook Interview Question
Intermediate
13,412
Solve
How to implement DOM like structure tree!? | Frontend Interview Question | Advanced JavaScript
Advanced
8,429
Solve
How to create OTP Input Component? | Frontend Coding Challege | JavaScript | HTML | CSS | React.js
Intermediate
8,501
Solve
How to build a File Explorer? Atlassian Frontend Machine Coding Round Question | JavaScript Interview Question | React.js
Intermediate
19,325
Solve
Build Country Capital Game | Microsoft Frontend Interview Question | JavaScript | React.js
All Levels
12,689
Solve
Domain Operation Simulator
Beginner
31
Solve
Implement listenTo function
Beginner
182
Solve
Company Structure Validator
Intermediate
232
Solve
Compare Semantic Versions
Beginner
514
Solve
Word Search Game
Advanced
710
Solve
Shopping Cart Checkout
Beginner
789
Solve
Implement a Timeout-Based API Wrapper with Optional Retry
Intermediate
1,825
Solve
Measure Function Execution Time
Intermediate
1,160
Solve
useObjectState
Intermediate
990
Solve
Cinema Hall Layout Structure
Intermediate
2,387
Solve
Breadcrumb Chain Problem
Beginner
2,440
Solve
Build an API Client
Intermediate
2,225
Solve
Function Call Counter
All Levels
1,796
Solve
Straws on the Board
Advanced
3,107
Solve
Chess Path Finder Visualiser
Intermediate
2,371
Solve
Count Total Comments
Beginner
2,979
Solve
String Compression and Decompression
All Levels
3,389
Solve
Dynamic Table Generator
Beginner
3,586
Solve
What would be the return value (if any)?
Beginner
2,594
Solve
Implement Event-Driven Key-Value Store
Intermediate
2,031
Solve
Implement Promisify Polyfill
Intermediate
2,059
Solve
Build a Multi Step Form
Intermediate
2,425
Solve
How to create a Drag and Drop List Component?
Intermediate
3,166
Solve
How to create analytics SDK in JavaScript?
Intermediate
5,934
Solve
Build a Two-Player Line Board Game
Intermediate
1,218
Solve
How to group array of objects by key?
Beginner
6,664
Solve
How to implement custom Array.prototype.square method?
Beginner
4,905
Solve
Build a Virtual DOM to actual HTML DOM Convertor | DOM Renderer
Intermediate
5,920
Solve
How to detect overlapping circles in React.js? Uber Frontend Interview Question
Advanced
7,316
Solve
How to implement a chainable Add function to calculate the sum of numbers?
Beginner
6,588
Solve
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