Complete React.js Notes - Master Guide

A comprehensive guide to React.js from fundamentals to advanced patterns. Perfect for learning, reference, and interview preparation.

Master the basics of React

#	Module	Description
01	Introduction to React	What is React, why React, setup
02	JSX & Rendering	JSX syntax, expressions, conditional rendering
03	Components	Functional, class components, composition
04	Props	Passing data, prop types, children
05	State	useState, state management, lifting state

Essential React hooks

#	Module	Description
06	useEffect	Side effects, lifecycle, cleanup
07	useRef	DOM access, mutable values
08	useContext	Context API, avoiding prop drilling
09	useReducer	Complex state, actions, reducers
10	useMemo & useCallback	Performance optimization, memoization

Build scalable React apps

#	Module	Description
11	Custom Hooks	Creating reusable hooks
12	Forms & Validation	Controlled inputs, form handling
13	Event Handling	Events, synthetic events, delegation
14	Lists & Keys	Rendering lists, key prop importance
15	Conditional Rendering	Patterns, best practices

Managing application state

#	Module	Description
16	Context API Deep Dive	Provider patterns, performance
17	Redux Basics	Store, actions, reducers, dispatch
18	Redux Toolkit	Modern Redux, slices, RTK Query

Client-side routing

#	Module	Description
19	React Router Basics	Routes, navigation, params
20	React Router Advanced	Protected routes, lazy loading

Build fast React apps

#	Module	Description
21	Performance Optimization	React.memo, profiler, best practices
22	Code Splitting	lazy, Suspense, dynamic imports
23	Error Boundaries	Catching errors, fallback UI

Quality React code

#	Module	Description
24	Testing Basics	Jest, React Testing Library
25	Component Patterns	HOCs, Render Props, Compound Components
26	Best Practices	Code organization, conventions

Resource	Description
React Cheat Sheet	Quick syntax reference

React.js