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How to create a flat version of a deeply nested array? [Programming Interview Question]
All Levels
22,192
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How to build a custom timer hook in React.js? | useTimer | JavaScript Interview Question
All Levels
19,719
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Build A Mini Clone Of Google Calendar | Frontend Coding Challenge | JavaScript Interview Questions | DevKode DOM Challenge
All Levels
14,238
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Implement Debounce Function | Flipkart UI - JavaScript Interview Questions
All Levels
11,619
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Implement Accordion Component in React.js | JavaScript Interview Question
Intermediate
11,976
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How to implement Event Emitter in JavaScript? | Facebook Interview Question
Intermediate
14,173
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How to implement DOM like structure tree!? | Frontend Interview Question | Advanced JavaScript
Advanced
9,047
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How to create OTP Input Component? | Frontend Coding Challege | JavaScript | HTML | CSS | React.js
Intermediate
8,940
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How to build a File Explorer? Atlassian Frontend Machine Coding Round Question | JavaScript Interview Question | React.js
Intermediate
20,681
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Build Country Capital Game | Microsoft Frontend Interview Question | JavaScript | React.js
All Levels
13,498
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Promise Scheduler
Advanced
305
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Progress Bar with Controls
Beginner
242
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Flipping Card Component
Beginner
368
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ComposeAsync
Intermediate
468
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Phone Home Screen
Intermediate
739
Solve
Domain Operation Simulator
Beginner
884
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Implement listenTo function
Beginner
917
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Company Structure Validator
Intermediate
1,178
Solve
Compare Semantic Versions
Beginner
859
Solve
Build Boggle Dictionary
Advanced
1,224
Solve
Shopping Cart Checkout
Beginner
1,260
Solve
Implement a Timeout-Based API Wrapper with Optional Retry
Intermediate
2,208
Solve
Measure Function Execution Time
Intermediate
1,465
Solve
useObjectState
Intermediate
1,280
Solve
Cinema Hall Layout Structure
Intermediate
3,118
Solve
Breadcrumb Chain Problem
Beginner
2,814
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Build an API Client
Intermediate
2,660
Solve
Function Call Counter
All Levels
2,260
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Straws on the Board
Advanced
3,419
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Chess Path Finder Visualiser
Intermediate
2,610
Solve
Count Total Comments
Beginner
3,309
Solve
String Compression and Decompression
All Levels
3,644
Solve
Dynamic Table Generator
Beginner
3,904
Solve
What would be the return value (if any)?
Beginner
3,270
Solve
Implement Event-Driven Key-Value Store
Intermediate
2,292
Solve
Implement Promisify Polyfill
Intermediate
2,422
Solve
Build a Multi Step Form
Intermediate
3,044
Solve
How to create a Drag and Drop List Component?
Intermediate
3,474
Solve
How to create analytics SDK in JavaScript?
Intermediate
6,351
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Build a Two-Player Line Board Game
Intermediate
1,545
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