[LEGACY] React - The Complete Guide

Create user interfaces by composing components and wiring them together with props and dynamic data binding, so your UI updates correctly as your data changes.

Implement interactive behavior by responding to user events and managing state, including patterns for lists and conditional content that keep your UI predictable as it grows.

Use built-in React Hooks effectively, deal with side effects, and build custom Hooks so you can extract reusable logic instead of duplicating code across components.

Style React apps with CSS Modules and Styled Components, and use React features like Fragments and Portals to structure UI cleanly without messy markup workarounds.

Send HTTP requests, handle transitional states and responses, and build robust forms with validation—so your apps can collect input and communicate reliably with APIs.

Add routing with React Router, manage complex state with Redux and Redux Toolkit, implement authentication, write unit tests, deploy React apps, and integrate React with TypeScript and Next.js when needed.