JavaScript

JavaScript

ES6+, Closures, Async

50+ Questions
React

React

Hooks, Components, State

40+ Questions
Node.js

Node.js

Events, Streams, APIs

30+ Questions
System Design

System Design

Scalability, Architecture

20+ Questions
Python

Python

OOP, Decorators, Django

35+ Questions
Data Structures

Data Structures

Arrays, Trees, Graphs

40+ Questions
Database

Database

SQL, NoSQL, Optimization

35+ Questions
Machine Learning

Machine Learning

ML, Neural Networks, AI

35+ Questions