What is React?
React is an open-source JavaScript library developed and maintained by Facebook. It is used for building user-friendly and interactive user interfaces for web applications.
Key Features
- Component-Based: React is based on reusable components, each representing a part of the user interface. This allows for modular and scalable development.
- Declarative Programming: With React, you describe how the user interface should look, rather than programming the exact sequence. React then handles updating the components.
- Virtual DOM: React uses a virtual DOM representation to efficiently apply changes to the actual DOM structure, significantly improving performance.
Applications
- Web Development: React is ideal for creating modern, interactive websites and web applications.
- Mobile Development: With React Native, you can develop native mobile apps for iOS and Android.
- Server-Side Rendering: React can also be rendered on the server to improve initial load time.
