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

Devtools Tech

Team Devtools Tech Official Profile

How to create analytics SDK in JavaScript?

2204

How to group array of objects by key?

3689

How to implement custom Array.prototype.square method?

2510

Build a Virtual DOM to actual HTML DOM Convertor | DOM Renderer

3509

How to detect overlapping circles in React.js? Uber Frontend Interview Question

3555

How to implement a chainable Add function to calculate the sum of numbers?

4583

How to implement Array.isArray? JavaScript Interview Question | Array Polyfills

4383

How to implement Array.prototype.filter? JavaScript Interview Question | Array Polyfills

2953

How to implement an Asynchronous Task Runner with Concurrency Control? Rippling Frontend Interview Question

3576

How to implement auto-retry Promise on Rejection? | Frontend Problem Sovling

2965

How to implement a prize calculator? JavaScript Interview Question

2679

Implement Count By | JavaScript Problem Solving

1854

How to build color memory game in React.js? Frontend Coding Challenge

HTML/CSS/JavaScript

5001

How to build an Avatar Picker? Frontend UI Coding Challenge

3757

How to implement feature flag functionality? Atlassian Frontend Interview Question

6092

How to build Circles Game in React.js? Frontend Coding Challenge

4847

How to build an Interactive JIRA Velocity Bar Chart? Atlassian Browser Coding Round Interview Question

HTML/CSS/JavaScript

7941

How to create an interactive shape based UI? Uber Frontend Interview Question | JavaScript | React.js

HTML/CSS/JavaScript

13015

How to build a Confluence-like Sidebar with Tree Structure? | Atlassian Frontend Interview Question | React.js

HTML/CSS/JavaScript

10907

Implement a Credit Card Masker | Klarna Frontend Interview Question | JavaScript

4865

Write a function to return the count of numbers in an Array | MakeMyTrip Frontend Interview Question

4379

How to create a loading animation? | Frontend Coding Challenge | React.js | JavaScript

HTML/CSS/JavaScript

4174

How to build a Pagination component in React.js? | Razorpay Interview Question | JavaScript

4869

How to implement a function to convert a string input into an object? | Razorpay Interview Question | JavaScript

5389

How to find the most frequent word in a paragraph? Frontend Problem Solving | JavaScript

3880

Implement a function that returns the number of parameters expected by a function in JavaScript

3491

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

HTML/CSS/JavaScript

9197

How to implement pipe utility? | Razorpay Interview Question | JavaScript

4612

How to build a moving dot animation? | Frontend Coding Challenge

HTML/CSS/JavaScript

3982

How to build a Like Button? | Frontend Coding Challenge

HTML/CSS/JavaScript

3683

Unsure about your interview prep? Practice Mock Interviews with us!

Book Your Slot Now