Introduction to React

React is a JavaScript library for building user interfaces. Let's explore the basics.

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".

Why Use React?

• Component-Based: Build encapsulated components that manage their own state
• Declarative: Design simple views for each state in your application
• Learn Once, Write Anywhere: Develop new features without rewriting existing code

Setting Up React

npx create-react-app my-app
cd my-app
npm start

Your First Component

function Welcome() {
  return <h1>Hello, React!</h1>;
}