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How to create a flat version of a deeply nested array? [Programming Interview Question]
All Levels
20,638
Solve
How to build a custom timer hook in React.js? | useTimer | JavaScript Interview Question
All Levels
18,771
Solve
Build A Mini Clone Of Google Calendar | Frontend Coding Challenge | JavaScript Interview Questions | DevKode DOM Challenge
All Levels
13,645
Solve
Implement Debounce Function | Flipkart UI - JavaScript Interview Questions
All Levels
10,961
Solve
Implement Accordion Component in React.js | JavaScript Interview Question
Intermediate
11,509
Solve
How to implement Event Emitter in JavaScript? | Facebook Interview Question
Intermediate
13,679
Solve
How to implement DOM like structure tree!? | Frontend Interview Question | Advanced JavaScript
Advanced
8,628
Solve
How to create OTP Input Component? | Frontend Coding Challege | JavaScript | HTML | CSS | React.js
Intermediate
8,646
Solve
How to build a File Explorer? Atlassian Frontend Machine Coding Round Question | JavaScript Interview Question | React.js
Intermediate
20,001
Solve
Build Country Capital Game | Microsoft Frontend Interview Question | JavaScript | React.js
All Levels
13,009
Solve
Phone Home Screen
Intermediate
314
Solve
Domain Operation Simulator
Beginner
509
Solve
Implement listenTo function
Beginner
648
Solve
Company Structure Validator
Intermediate
873
Solve
Compare Semantic Versions
Beginner
647
Solve
Build Boggle Dictionary
Advanced
904
Solve
Shopping Cart Checkout
Beginner
1,018
Solve
Implement a Timeout-Based API Wrapper with Optional Retry
Intermediate
1,960
Solve
Measure Function Execution Time
Intermediate
1,260
Solve
useObjectState
Intermediate
1,069
Solve
Cinema Hall Layout Structure
Intermediate
2,834
Solve
Breadcrumb Chain Problem
Beginner
2,544
Solve
Build an API Client
Intermediate
2,404
Solve
Function Call Counter
All Levels
1,992
Solve
Straws on the Board
Advanced
3,221
Solve
Chess Path Finder Visualiser
Intermediate
2,436
Solve
Count Total Comments
Beginner
3,080
Solve
String Compression and Decompression
All Levels
3,445
Solve
Dynamic Table Generator
Beginner
3,706
Solve
What would be the return value (if any)?
Beginner
2,812
Solve
Implement Event-Driven Key-Value Store
Intermediate
2,114
Solve
Implement Promisify Polyfill
Intermediate
2,217
Solve
Build a Multi Step Form
Intermediate
2,718
Solve
How to create a Drag and Drop List Component?
Intermediate
3,263
Solve
How to create analytics SDK in JavaScript?
Intermediate
6,081
Solve
Build a Two-Player Line Board Game
Intermediate
1,334
Solve
How to group array of objects by key?
Beginner
6,730
Solve
How to implement custom Array.prototype.square method?
Beginner
4,984
Solve
Build a Virtual DOM to actual HTML DOM Convertor | DOM Renderer
Intermediate
6,030
Solve
How to detect overlapping circles in React.js? Uber Frontend Interview Question
Advanced
7,454
Solve
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