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

Explore premium tutorials by devtools.tech

How to create analytics SDK in JavaScript?

6,653

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

7,396

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

5,726

How to implement a prize calculator? JavaScript Interview Question

4,631

Implement Count By | JavaScript Problem Solving

3,458

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

18,921

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

6,673

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

6,242

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

7,043

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

7,440

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

5,501

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

5,003

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

14,330

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

6,420

How to check deep equality between JavaScript objects? | Zeta Frontend Interview Question

7,598

Build a FAQ page | Frontend Coding Challenge | React.js | HTML | CSS | JavaScript

7,567

Implement promiseMerge | Frontend Problem Solving | JavaScript

5,737

Build a GIF Search Engine | Frontend Coding Challenge | React.js | JavaScript

6,546

Implement a function that creates an array of values not included in other array | Lodash Difference | JavaScript Interview Question

5,704

Implement a function to convert all object keys to camel case | JavaScript Interview Question

5,584

Implement a function to split an array into groups of a certain length | Chunk | JavaScript Interview Question | Lodash Polyfills

5,375

What is the output of the following code snippet? | JavaScript Fundamentals | Frontend Interview Question

8,942

Implement a function to generate a range of numbers | Range I | JavaScript Interview Question | Lodash Polyfills

5,534

How to implement getElementsByTagName? | Frontend Problem Solving | JavaScript Interview Question

6,593

How to implement getElementsByClassName? | Frontend Problem Solving | JavaScript Interview Question

5,502

Implement Promise Polyfill | JavaScript Interview Question | Promise Polyfills | Frontend Problem Soving

8,733

Debug and Fix the Feedback Modal Component in React.js | Frontend Coding Challenge | Debugging Round | JavaScript

5,617

How to Sort an Array of Objects by Property Values? | Frontend Problem Solving | JavaScript Interview Questions | Lodash Polyfill

4,701

How to mimic componentDidUpdate using React Hooks? useDidUpdate Custom Hook | React Interview Question | JavaScript

5,619

How to implement String.prototype.repeat? | String Polyfills | Frontend Problem Solving | JavaScript Interview Question

3,896