# Getting Started with React React is a JavaScript library for building user interfaces. It lets you compose complex UIs from small and isolated pieces of code called components. ## Why React? - **Declarative**: React makes it painless to create interactive UIs. Design simple views for each state in your application, and React will efficiently update and render just the right components when your data changes. - **Component-Based**: Build encapsulated components that manage their own state, then compose them to make complex UIs. - **Learn Once, Write Anywhere**: We don't make assumptions about the rest of your technology stack, so you can develop new features in React without rewriting existing code. ## Setting Up Your Environment To get started with React, you need Node.js installed on your machine. We recommend using the latest LTS version. ```bash npx create-react-app my-app cd my-app npm start ``` ## Your First Component ```jsx function Welcome({ name }) { return

Hello, {name}!

; } ``` ## Next Steps Once you're comfortable with the basics, explore state management with hooks, routing with React Router, and server-side rendering with Next.js.