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

Devtools Tech

Team Devtools Tech Official Profile

Certificates

Certificate for JavaScript Memory and Garbage Collection

JavaScript Memory and Garbage Collection

Issued 6 October 2026

Build a Two-Player Line Board Game

7,602

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

42,022

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

18,591

Implement a Feature Toggle System

3

Implement mapAsyncLimit

17

Versioned Configuration Store

85

Selectable Grid Cells

105

Delete Nested Object Property

156

Count Pair Sums with Updates

106

File Explorer II

220

Priority Based Data Fetching

338

Exclude Items

136

Search Page with Highlighting

79

Spreadsheet Grid

383

Resolve Function Values in a Nested Object

216

Feedback Review System

244

Grid Toggle

361

Priority Based Modals

296

Chainable Driver Class

346

Cursor Tracker

268

Dynamic Grid Challenge

273

Identical DOM Trees

224

Transaction Confirmation

187

Build a Cricket Score Board

867

Build a Typing Speed Test Component

813

Interactive Color Picker with Throttle

454

ComposeAsync

1,134

Phone Home Screen

1,278

Company Structure Validator

1,794

Implement a Timeout-Based API Wrapper with Optional Retry

2,862

Measure Function Execution Time

1,989

useObjectState

2,622

Cinema Hall Layout Structure

3,735