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Certificates

Certificate for JavaScript Memory and Garbage Collection

JavaScript Memory and Garbage Collection

Issued 6 October 2026

Build a Two-Player Line Board Game

7,280

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

30,294

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

28,579

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

41,713

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

18,369

What is the output of this Promise chain?

509

Can you predict the answer? (this keyword)

5,345

What would be the return value (if any)?

9,697

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

13,251

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

16,006

Is Fetch API part of JavaScript Engine or JavaScript Runtime?

13,969

What would be the output of the following code? (Based on Spread Operator)

13,747

What would be the output of the following code? (Based on Array Slice)

12,793

Which function is used to serialize an object into a JSON string in Javascript?

12,540

What is the process in which an object or data structure is converted to series of bytes for easy storage or network transfer?

11,568

Implement mapAsyncLimit

1

Implement Video Ranking

84

Prettify JSON String

82

Versioned Configuration Store

83

Selectable Grid Cells

104

Group Products by Category

108

Query Builder

63

Multi-Stepper Component

191

Dynamic Currying Sum

162

Autocomplete Search Cache (LRU)

152

Delete Nested Object Property

145

Implement useDidUpdate Custom React Hook

135

Implement useFetch Custom React Hook

174

Chainable Currency Calculator

109

Async Fetcher with Error Handling

157

Count Pair Sums with Updates

104

Number to Words Converter

77

Time Since Last Train

182

Real-Time Comment Feed

163

Count Special Numbers

165

Custom React Hook for Media Query Detection

162

Tooltip for an Anchor Element

61

File Explorer II

219

Flatten Nested Object - II

265

Priority Based Data Fetching

332

Exclude Items

131

Search Page with Highlighting

79

Find Employee

336