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How to create a flat version of a deeply nested array? [Programming Interview Question]
All Levels
19,047
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How to build a custom timer hook in React.js? | useTimer | JavaScript Interview Question
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17,598
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12,911
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Implement Debounce Function | Flipkart UI - JavaScript Interview Questions
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10,162
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Implement Accordion Component in React.js | JavaScript Interview Question
Intermediate
10,944
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How to implement Event Emitter in JavaScript? | Facebook Interview Question
Intermediate
13,089
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How to implement DOM like structure tree!? | Frontend Interview Question | Advanced JavaScript
Advanced
8,158
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How to create OTP Input Component? | Frontend Coding Challege | JavaScript | HTML | CSS | React.js
Intermediate
8,323
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How to build a File Explorer? Atlassian Frontend Machine Coding Round Question | JavaScript Interview Question | React.js
Intermediate
18,550
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Build Country Capital Game | Microsoft Frontend Interview Question | JavaScript | React.js
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12,221
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Word Search Game
Advanced
263
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Shopping Cart Checkout
Beginner
446
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Implement a Timeout-Based API Wrapper with Optional Retry
Intermediate
1,514
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Measure Function Execution Time
Intermediate
974
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useObjectState
Intermediate
859
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Cinema Hall Layout Structure
Intermediate
2,152
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Breadcrumb Chain Problem
Beginner
2,307
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Build an API Client
Intermediate
1,962
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Function Call Counter
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1,384
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Straws on the Board
Advanced
2,944
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Chess Path Finder Visualiser
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2,258
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Count Total Comments
Beginner
2,833
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String Compression and Decompression
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3,282
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Dynamic Table Generator
Beginner
3,416
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What would be the return value (if any)?
Beginner
2,335
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Implement Event-Driven Key-Value Store
Intermediate
1,942
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Implement Promisify Polyfill
Intermediate
1,823
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Build a Multi Step Form
Intermediate
2,142
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How to create a Drag and Drop List Component?
Intermediate
3,024
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How to create analytics SDK in JavaScript?
Intermediate
5,773
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Build a Two-Player Line Board Game
Intermediate
1,079
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How to group array of objects by key?
Beginner
6,546
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How to implement custom Array.prototype.square method?
Beginner
4,776
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Build a Virtual DOM to actual HTML DOM Convertor | DOM Renderer
Intermediate
5,802
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How to detect overlapping circles in React.js? Uber Frontend Interview Question
Advanced
7,139
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How to implement a chainable Add function to calculate the sum of numbers?
Beginner
6,488
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How to implement Array.isArray? JavaScript Interview Question | Array Polyfills
Beginner
6,670
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How to implement Array.prototype.filter? JavaScript Interview Question | Array Polyfills
Beginner
5,120
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How to implement an Asynchronous Task Runner with Concurrency Control? Rippling Frontend Interview Question
Intermediate
6,041
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How to build a Transfer List UI component?
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884
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Top JavaScript Array Interview Questions | Problem Solving | Array Polyfills
Frontend Coding Challenges | JavaScript | ReactJS | DevKode DOM Challenge
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What Every React Developer Should Know!? | Part 1 | Stale Closures
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