React Documentation

Welcome to the comprehensive React.js documentation. This guide will take you from a complete beginner to an advanced level.

Topics Covered

Getting Started

• Introduction to React
• Installation and Setup
• Your First Component
• Development Tools and Debugging

Components

• Functional Components
• JSX Syntax
• Props
• Component Composition

State and Events

• useState Hook
• Event Handling
• Forms
• Controlled Components

Core Hooks

• useEffect Hook
• useRef Hook
• useContext Hook
• useMemo and useCallback Hooks
• Custom Hooks

React 19 New Features

• use Hook
• useActionState
• useOptimistic
• Actions

Rendering

• Conditional Rendering
• Lists and Keys
• Fragments

Routing

• React Router Basics
• Dynamic Routes
• Navigation

Styling

• CSS Modules
• Tailwind CSS
• Styled Components

API Integration

• Fetch API
• Error Handling
• React Query Basics

Performance

• React.memo and Optimization
• Code Splitting
• React Compiler

Advanced Patterns

• Error Boundaries
• Suspense
• Context API Advanced

Best Practices

• Project Structure
• Common Mistakes