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Certificates

Certificate for JavaScript Memory and Garbage Collection

JavaScript Memory and Garbage Collection

Issued 6 October 2026

Implement listenTo function

1,431

Compare Semantic Versions

1,304

Shopping Cart Checkout

1,622

Breadcrumb Chain Problem

3,409

Count Total Comments

4,046

Dynamic Table Generator

4,381

What would be the return value (if any)?

9,870

How to group array of objects by key?

7,378

How to implement custom Array.prototype.square method?

5,619

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

7,423

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

7,624

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

5,941

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

13,543

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

30,757

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

6,403

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

5,605

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

5,149

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

6,588

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

5,648

How to build a Like Button? | Frontend Coding Challenge

5,370

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

7,781

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

7,680

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

5,817

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

5,529

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

5,629

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

13,429

Build a Counter App | Frontend Coding Challenge

4,983

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

5,635

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

5,004

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

4,480