⚛️ React.js Full Course Detailed Content

Module 1: Introduction to React

  • What is React? Why React?
  • SPA (Single Page Application) Concept
  • Virtual DOM vs Real DOM
  • Component-based Architecture
  • Setting up Development Environment (Node, VS Code)
  • Create React App / Vite Setup

Module 2: JSX & Rendering

  • JSX Syntax & Rules
  • Rendering Elements
  • Expressions in JSX
  • Styling in React (CSS, Inline, Modules)
  • Lists & Keys
  • Conditional Rendering Techniques

Module 3: Components

  • Function vs Class Components
  • Component Lifecycle (Overview)
  • Props & PropTypes
  • Children props
  • Reusable UI Components

Module 4: State Management in React

  • useState Hook (Basic to Advanced)
  • State batching & async behavior
  • Lifting State Up
  • Controlled vs Uncontrolled Components
  • Forms & Form Validation

Module 5: React Hooks

  • Rules of Hooks
  • useEffect (Lifecycle: mount/update/unmount)
  • useRef (DOM access & mutable data)
  • useMemo & useCallback (Performance optimization)
  • Custom Hooks
  • Avoiding unnecessary re-renders

Module 6: React Router

  • Routing concepts in SPA
  • Installation & Setup
  • Navigation, Link, NavLink
  • Route Parameters & Query Params
  • Protected Routes (Auth-based)
  • Lazy Loading of pages

Module 7: API Integration

  • Fetch API / Axios
  • Calling REST APIs
  • Handling Loading & Error states
  • Pagination and Filtering
  • Debouncing & Throttling

Module 8: Context API & State Management

  • Prop drilling & solution
  • Creating Context for Global State
  • useReducer for complex state
  • When to choose Context vs other state solutions

Module 9: Redux Toolkit

  • Why Redux? When to use it?
  • Store, Actions, Reducers
  • CreateSlice, Async Thunks
  • DevTools & middleware concept
  • Best practices with RTK Query (optional)

Module 10: Performance Optimization

  • Memoization techniques
  • React Profiler
  • Code splitting & lazy loading
  • Suspense & Error Boundaries

Module 11: UI Libraries & Styling

  • Material UI / Ant Design / Tailwind (overview)
  • Component patterns & design systems
  • Responsive layouts

Module 12: Form Handling (Advanced)

  • Formik / React Hook Form
  • Yup validation
  • Dynamic form controls

Module 13: Authentication & Security

  • Login / Signup UI
  • Session management & JWT handling (Frontend flow)
  • Protected routes & role-based access
  • Storing tokens securely (localStorage / HttpOnly cookie discussion)

Module 14: Testing

  • Unit testing with Jest
  • Component testing with React Testing Library
  • Snapshot testing

Module 15: Real-Time Features

  • WebSockets / Socket.IO Basics (Frontend usage)
  • Notifications / Live updates

Module 16: Integration with Backend

  • Connecting with Node.js / GraphQL backend
  • Folder structure for large apps
  • Services & API abstraction

Module 17: Deployment

  • Builds & Optimization
  • Deploying to Netlify / Vercel / S3
  • Environment Variables in Prod
  • Basic CI/CD introduction

Final Project (Capstone)

You will build a complete web application:
✔ Authentication
✔ CRUD screens with forms
✔ API Integration
✔ Routing + Protected Routes
✔ Scalable folder structure
✔ Deployment + Documentation