devtools.tech | The only way to prepare for frontend interviews

Ultimate Guide to Crack Frontend System Design Interviews

How to create a flat version of a deeply nested array? [Programming Interview Question]

23,448

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

20,727

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

14,953

Implement Debounce Function | Flipkart UI - JavaScript Interview Questions

12,409

Implement Accordion Component in React.js | JavaScript Interview Question

12,564

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

14,991

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

9,580

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

9,391

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

21,466

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

14,223

How to implement custom Array.prototype.some method?

7

How to implement custom Array.prototype.forEach method?

36

Issue Tracker UI

185

Build a Cricket Score Board

479

Build a Typing Speed Test Component

416

Interactive Color Picker with Throttle

284

Promise Scheduler

915

Progress Bar with Controls

829

Flipping Card Component

699

ComposeAsync

767

Phone Home Screen

1,007

Domain Operation Simulator

1,200

Implement listenTo function

1,205

Company Structure Validator

1,460

Compare Semantic Versions

1,130

Build Boggle Dictionary

1,515

Shopping Cart Checkout

1,374

Implement a Timeout-Based API Wrapper with Optional Retry

2,449

Measure Function Execution Time

1,705

useObjectState

1,490

Cinema Hall Layout Structure

3,404

Breadcrumb Chain Problem

3,056

Build an API Client

2,930

Function Call Counter

2,545

Straws on the Board

3,681

Chess Path Finder Visualiser

2,836

Count Total Comments

3,730

String Compression and Decompression

3,890

Dynamic Table Generator

4,146

What would be the return value (if any)?

3,887