React JS

Learning React JS is essential for IT placements due to its pivotal role in modern web development. Developed by Facebook, React JS is a powerful JavaScript library for building dynamic user interfaces with a component-based approach that promotes reusability and maintainability.

Proficiency in React JS allows candidates to create efficient, interactive web applications through its virtual DOM and one-way data flow, which optimize performance and ensure seamless user experiences.

React’s ecosystem, including tools like Redux, React Router, and Material-UI, enhances development productivity. Its versatility also extends to mobile app development via React Native, making React JS a highly desirable skill for IT placements in companies focused on cutting-edge technology and digital innovation.

Syllabus:

• 1) Introduction to React JS
• What is React JS?
• Key Features of React JS
• Virtual DOM
• React Components
• 2) Setting Up a React Environment
• Creating a React App
• React Development Tools
• Project Structure
• Understanding npm and yarn
• 3) React Components
• Functional Components
• Class Components
• State and Props
• Component Lifecycle
• Handling Events
• 4) JSX (JavaScript XML)
• Introduction to JSX
• Embedding Expressions
• JSX Attributes
• JSX and HTML Differences
• 5) React Hooks
• Introduction to Hooks
• useState Hook
• useEffect Hook
• Custom Hooks
• 6) React Router
• Introduction to React Router
• Setting Up Routes
• Navigating Between Routes
• Route Parameters
• Route Guards
• 7) Managing State in React
• Local State vs. Global State
• State Management Libraries (Redux, Context API)
• Using Redux for State Management
• Async Actions with Redux Thunk
• 8) Handling Forms in React
• Controlled Components
• Uncontrolled Components
• Form Validation
• Formik Library
• 9) Styling in React
• Inline Styles
• CSS Modules
• Styled Components
• Third-Party Libraries for Styling
• 10) React Performance Optimization
• Identifying Performance Issues
• React.memo
• Optimizing Re-renders
• Code Splitting
• 11) Testing React Applications
• Introduction to Testing
• Unit Testing with Jest
• Integration Testing with React Testing Library
• End-to-End Testing with Cypress
• 12) Building React Applications
• Production Builds
• Deployment Strategies
• CI/CD Integration
• Performance Optimization