React - A JavaScript Library for Building User Interfaces
React is a JavaScript library for building user interfaces (UI). It's used to create complex UIs from small and isolated pieces of code. It's known for its component-based architecture and declarative approach to building UIs.
Here are some key concepts:
- Components: React UIs are built from reusable components. Each component manages its own state and renders a part of the UI.
- JSX: A syntax extension to JavaScript that allows you to write HTML-like code within your JavaScript files.
- Virtual DOM: React uses a virtual DOM to efficiently update the actual DOM, improving performance.
- State Management: React provides tools for managing the state of your components.