Getting Started with React

React is a powerful JavaScript library for building user interfaces. This guide will help you understand the basics and get started with your first React application.

What is React?

React is a declarative, efficient, and flexible JavaScript library for building user interfaces. It lets you compose complex UIs from small and isolated pieces of code called "components".

Key Features

1. Component-Based: Build encapsulated components that manage their own state
2. Virtual DOM: Efficient updates and rendering
3. One-Way Data Flow: Predictable data management
4. Rich Ecosystem: Vast library of tools and extensions

Creating Your First Component

Here's a simple React component:

import React, { useState } from 'react';

function Counter() {
  const [count, setCount] = useState(0);

  return (
    <div>
      <p>Count: {count}</p>
      <button onClick={() => setCount(count + 1)}>Increment</button>
    </div>
  );
}

export default Counter;

Conclusion

React provides a robust foundation for building modern web applications. Start with small components and gradually build more complex features.