![ReactJS](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiV58B-aUWGAOTcFCQWJTFsNfFD-nuEC0kKEJgRes5cP3PBxEnAotyilN3Z4ufgD5PZ23q0rJNrlYCdt7JPdGJOkjyGBJpYDparihhO_tn9nqmsZGSIy2OQFXIoDPnfQoZjBndKpAdyFnN8X-YN_4r0nWAsDt8xhbTz_2KLGY0RcKmR6_4h1SajueZBLpU/s0-rw/reactjs.png)
1. Basics
1.1 What is ReactJS?
1.2 Setting up React Environment
1.3 JSX Syntax
1.4 Components
2. Components
2.1 Functional Components
2.2 Class Components
2.3 Props
2.4 State
2.5 Lifecycle Methods
2.6 Hooks (useState, useEffect, useContext, etc.)
3. Advanced Concepts
3.1 Context API
3.2 Error Boundaries
3.3 Refs
3.4 Portals
3.5 Higher-Order Components (HOC)
3.6 Render Props
4. State Management
4.1 useState Hook
4.2 useReducer Hook
4.3 Context API
4.4 Redux
4.5 MobX
5. Routing
5.1 React Router
5.2 Route Configuration
5.3 Navigation
5.4 Dynamic Routing
6. Forms
6.1 Controlled Components
6.2 Uncontrolled Components
6.3 Form Validation
6.4 Handling Form Submission
7. Performance Optimization
7.1 Memoization
7.2 React.memo
7.3 useMemo
7.4 useCallback
7.5 Lazy Loading
7.6 Code Splitting
8. Styling
8.1 CSS Modules
8.2 Styled Components
8.3 Emotion
8.4 Inline Styles
9. Testing
9.1 Unit Testing with Jest
9.2 Integration Testing with React Testing Library
9.3 End-to-End Testing with Cypress
10. Build and Deployment
10.1 Create React App
10.2 Webpack
10.3 Babel
10.4 Deployment Strategies