React

React is a JavaScript library for building user interfaces. It is maintained by Facebook and a community of individual developers and companies.

React can be used as a base in the development of single-page or mobile applications.

Core Concepts

• Components: React is all about building encapsulated components that manage their own state.
• JSX: A syntax extension to JavaScript that looks similar to HTML.
• Virtual DOM: React uses a virtual-dom to efficiently update and render the right components when your data changes.

Important Hooks

• useState: For managing local component state. See react-hooks.
• useEffect: For handling side effects.
• useContext: For accessing context.

React promotes a one-way data flow, which makes applications easier to reason about. For complex state, you might use a state management library like state-management.

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