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

Get Lifetime access to our premium content.

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

6,379

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

5,591

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

5,134

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

6,536

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

5,623

How to build a Like Button? | Frontend Coding Challenge

5,345

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

7,722

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

7,654

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

5,809

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

5,502

Build a Simple Price Calculator | Frontend Coding Challenge | Razorpay Interview Question

5,604

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

10,726

Build a Counter App | Frontend Coding Challenge

4,965

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

5,622

Implement a function that accepts a callback and restricts its invocation to at most N times | Lodash Polyfills | Frontend Problem Solving

4,992

Implement a function that accepts a callback and restricts its invocation to at most once | Lodash Polyfills | Frontend Problem Solving

4,469

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

5,709

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

3,964

Implement Tuple Function | LinkedIn Frontend Interview Question | JavaScript Problem Solving

6,828

How to animate multiple progress bars in a sequence? | Uber Frontend Interview Question | React.js | JavaScript | HTML | CSS

11,170

Design a Login Page | Version 1 | React.js | HTML | CSS | JavaScript | Frontend Projects for Beginners

5,263

How to implement Deep Filter Functionality? | AWS Frontend Interview Question | JavaScript | Problem Solving | Amazon

6,544

Implement cloneDeep from Lodash | Frontend Problem Solving | JavaScript Interview Question

4,153

How to create a timer with progress bar? | Machine Coding Round | React.js | HTML | CSS | JavaScript

6,587

How to create a toggle function in JavaScript? | Frontend Problem Solving | JavaScript Interview Question

3,976

How to create a vertical menu in React.js? | Beginner Frontend Coding Challenge | UI Machine Coding Round | JavaScript

5,301

How to create useSSR hook in React.js? | JavaScript Interview Question | Frontend Problem Solving

5,053

How to create useCopyToClipboard hook in React.js? | JavaScript Interview Question | Frontend Problem Solving | Custom React Hooks

5,268

How to fix and build an Age Validator? | Pair Programming | Frontend Coding Challenge | ReactJS | JavaScript

3,232

Can you identify the behaviour of following code snippet? | JavaScript Output Questions | Problem Solving | JavaScript Copy

12,262