A comprehensive, interview-ready reference covering 150+ concepts across React, Next.js, JavaScript, TypeScript, and Advanced Patterns — with live demos, interactive playground, and complete API guides.
Master SSG, SSR, ISR, and CSR with live demos
Core concepts, hooks, patterns, and state management
App Router, data fetching, optimization, and more
From closures to async patterns - 97+ concepts
Complete TypeScript guide - types, generics, utilities
Live code editor for JS, TS, and React JSX
Complete guide to web accessibility and inclusive design
Complete reference with examples for all JS methods
All ways to make API calls in JS and React
Test structure, mocking, and API testing with MSW
Complete Git reference with 60+ commands and workflows
Production-ready AI integration, API patterns, and JWT auth