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1. Introduction to React
A Powerful JavaScript Library for
Building User Interfaces

2. What is React?
• ⚡ React is a JavaScript library for building fast
and interactive user interfaces.
• ✔ Developed by Facebook
• ✔ Component-based architecture
• ✔ Efficient Virtual DOM
• ✔ Declarative programming style

3. Key Features of React
• 🎯 Component-based structure
• 🌍 Virtual DOM for optimized rendering
• 🔧 Reusable components
• 🚀 Fast performance and scalability

4. React vs. Other Frameworks
• 📌 React vs. Angular vs. Vue
• ✔ Lightweight compared to Angular
• ✔ Easier learning curve than Angular
• ✔ More flexibility compared to Vue

5. How React Works
• 🛠 React updates the Virtual DOM efficiently
• 📦 Components manage their own state
• 🔄 One-way data binding for predictable
updates

6. Getting Started with React
• Install Node.js
1 ️
1️⃣
• Create a React app: npx create-react-app
2️⃣
my-app
• Navigate to the project: cd my-app
3 ️
3️⃣
• Start the development server: npm start
4️⃣

7. Building a Simple React
Component
• Example:
• function Welcome() {
• return <h1>Hello, React!</h1>;
• }
• export default Welcome;

8. Conclusion & Next Steps
• 🎯 React simplifies UI development.
• 🚀 Start building components!
• 📚 Explore React Hooks and state
management.