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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
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typescript logo
typescript logo
23,510

How to build a custom timer hook in React.js? | useTimer | JavaScript Interview Question

All Levels
react logo
20,765

Build A Mini Clone Of Google Calendar | Frontend Coding Challenge | JavaScript Interview Questions | DevKode DOM Challenge

All Levels
html logo
react logo
14,996

Implement Debounce Function | Flipkart UI - JavaScript Interview Questions

All Levels
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12,454

Implement Accordion Component in React.js | JavaScript Interview Question

Intermediate
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12,590

How to implement Event Emitter in JavaScript? | Facebook Interview Question

Intermediate
javascript logo
typescript logo
15,028

How to implement DOM like structure tree!? | Frontend Interview Question | Advanced JavaScript

Advanced
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9,609

How to create OTP Input Component? | Frontend Coding Challege | JavaScript | HTML | CSS | React.js

Intermediate
html logo
react logo
9,420

How to build a File Explorer? Atlassian Frontend Machine Coding Round Question | JavaScript Interview Question | React.js

Intermediate
react logo
html logo
21,495

Build Country Capital Game | Microsoft Frontend Interview Question | JavaScript | React.js

All Levels
react logo
html logo
14,256

How to implement custom Array.prototype.some method?

Beginner
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typescript logo
29

How to implement custom Array.prototype.forEach method?

Beginner
javascript logo
typescript logo
162

Issue Tracker UI

Beginner
react logo
html logo
216

Build a Cricket Score Board

Intermediate
react logo
html logo
496

Build a Typing Speed Test Component

Intermediate
react logo
html logo
436

Interactive Color Picker with Throttle

Intermediate
html logo
298

Promise Scheduler

Advanced
javascript logo
typescript logo
927

Progress Bar with Controls

Beginner
react logo
html logo
840

Flipping Card Component

Beginner
react logo
html logo
711

ComposeAsync

Intermediate
javascript logo
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785

Phone Home Screen

Intermediate
react logo
1,012

Domain Operation Simulator

Beginner
javascript logo
typescript logo
1,205

Implement listenTo function

Beginner
javascript logo
typescript logo
1,213

Company Structure Validator

Intermediate
javascript logo
typescript logo
1,467

Compare Semantic Versions

Beginner
javascript logo
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1,137

Build Boggle Dictionary

Advanced
react logo
1,524

Shopping Cart Checkout

Beginner
react logo
1,386

Implement a Timeout-Based API Wrapper with Optional Retry

Intermediate
javascript logo
typescript logo
2,453

Measure Function Execution Time

Intermediate
javascript logo
typescript logo
1,716

useObjectState

Intermediate
react logo
1,493

Cinema Hall Layout Structure

Intermediate
react logo
html logo
3,412

Breadcrumb Chain Problem

Beginner
javascript logo
typescript logo
3,063

Build an API Client

Intermediate
javascript logo
typescript logo
2,936

Function Call Counter

All Levels
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typescript logo
2,559

Straws on the Board

Advanced
html logo
react logo
3,689

Chess Path Finder Visualiser

Intermediate
react logo
html logo
2,839

Count Total Comments

Beginner
javascript logo
typescript logo
3,734

String Compression and Decompression

All Levels
javascript logo
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3,896

Dynamic Table Generator

Beginner
react logo
4,149

What would be the return value (if any)?

Beginner
javascript logo
3,897
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Study Guides

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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
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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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