React is a JavaScript library used for creating interactive and dynamic web applications and building user interfaces, particularly for single-page applications. It allows developers to create reusable UI components and efficiently manage the state of the application.

React components are JavaScript functions with markup syntax called JSX. It is a JavaScript syntax extension popularized by React. Putting JSX markup close to related rendering logic makes React components easy to create, maintain, and delete.React components receive data and return what should appear on the screen.

React uses a virtual DOM to efficiently update the UI in response to changes in data or user interactions, resulting in better performance and a smoother user experience.

React is a powerful JavaScript library used for creating interactive and dynamic web applications.

For further details, please visit https://react.dev/learn.