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Devtools Tech
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JavaScript Memory and Garbage Collection
Issued 6 October 2026
Questions
Resources
Resume
Submissions
Video Tutorials
Build a Two-Player Line Board Game
Medium
7,284
Solve
How to create an grid lights interactive shape? Uber Frontend Interview Question | JavaScript | React.js
Easy
30,296
Solve
Build Country Capital Game | Microsoft Frontend Interview Question | JavaScript | React.js
All Levels
28,581
Solve
How to build a File Explorer? Atlassian Frontend Machine Coding Round Question | JavaScript Interview Question | React.js
Medium
41,714
Solve
How to create OTP Input Component? | Frontend Coding Challege | JavaScript | HTML | CSS | React.js
Medium
18,371
Solve
Selectable Grid Cells
Medium
104
Solve
Query Builder
Hard
63
Solve
Multi-Stepper Component
Easy
191
Solve
Implement useDidUpdate Custom React Hook
Easy
135
Solve
Implement useFetch Custom React Hook
Easy
174
Solve
Custom React Hook for Media Query Detection
Easy
162
Solve
File Explorer II
Medium
219
Solve
Spreadsheet Grid
Medium
381
Solve
Expense Split Manager
Hard
183
Solve
Feedback Review System
Medium
242
Solve
Grid Toggle
Medium
356
Solve
Priority Based Modals
Medium
287
Solve
Interactive Voting Poll Component
Easy
481
Solve
Cursor Tracker
Medium
262
Solve
Dynamic Grid Challenge
Medium
272
Solve
Reusable Dropdown Component with Search
Easy
474
Solve
Infinite Scroll Pagination
Easy
968
Solve
Issue Tracker UI
Easy
834
Solve
Build a Cricket Score Board
Medium
867
Solve
Build a Typing Speed Test Component
Medium
812
Solve
Progress Bar with Controls
Easy
1,166
Solve
Flipping Card Component
Easy
966
Solve
Phone Home Screen
Medium
1,276
Solve
Build Boggle Dictionary
Hard
1,814
Solve
Shopping Cart Checkout
Easy
1,622
Solve
useObjectState
Medium
2,621
Solve
Cinema Hall Layout Structure
Medium
3,734
Solve
Straws on the Board
Hard
3,941
Solve
Chess Path Finder Visualiser
Medium
2,964
Solve
Dynamic Table Generator
Easy
4,376
Solve
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