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
TypeScript

TypeScript

Types, Interfaces, Generics

30+ Questions
Next.js

Next.js

SSR, SSG, App Router

25+ Questions
Nest.js

Nest.js

Decorators, Modules, DI

20+ Questions
Vue.js

Vue.js

Components, Directives, Vuex

30+ Questions
Angular

Angular

Components, Services, RxJS

30+ Questions
Java

Java

OOP, Collections, Spring

40+ Questions
Go (Golang)

Go (Golang)

Goroutines, Channels, Interfaces

25+ Questions
AWS Cloud

AWS Cloud

EC2, S3, Lambda, Services

35+ Questions
Docker

Docker

Containers, Images, Compose

25+ Questions
Kubernetes

Kubernetes

Pods, Services, Deployments

25+ Questions
Git & GitHub

Git & GitHub

Version Control, Commands

30+ Questions
Redis

Redis

Caching, Data Structures

20+ Questions
C++

C++

OOP, Pointers, STL

35+ Questions
C#

C#

.NET, LINQ, Async

30+ Questions
Express.js

Express.js

Middleware, Routing, APIs

25+ Questions
MongoDB

MongoDB

NoSQL, Aggregation, Indexes

30+ Questions
PostgreSQL

PostgreSQL

SQL, Joins, Performance

30+ Questions
GraphQL

GraphQL

Queries, Mutations, Schema

25+ Questions
Flutter

Flutter

Dart, Widgets, State

30+ Questions
React Native

React Native

Mobile, Components, Navigation

25+ Questions