Learn React
React is a JavaScript library developed by Facebook for building user interfaces, particularly for web applications. It allows developers to create reusable UI components and efficiently manage the state of their applications. React uses a component-based architecture, where UIs are broken down into smaller, reusable components, making it easier to build and maintain complex user interfaces.
One of the key features of React is its use of a virtual DOM (Document Object Model). React creates a lightweight, in-memory representation of the actual DOM, which it uses to efficiently update the UI when the application state changes. This approach minimizes the number of DOM manipulations needed, resulting in better performance.
React also promotes a declarative programming style, where developers describe what the UI should look like based on the current state, rather than imperatively specifying how to update the UI in response to changes. This makes code easier to understand and maintain.
Key features of React:
• Component-Based Architecture: React allows developers to build user interfaces using reusable components.
• Virtual DOM: React uses a virtual DOM (Document Object Model) to optimize updates to the real DOM.
• JSX (JavaScript XML): React uses JSX, a syntax that allows developers to write HTML-like code within JavaScript.
• State Management: React components can manage their local state using useState hook or this.state.
• React Hooks: Hooks like useState, useEffect, useContext mostly eliminates need for class components.
• React Router: React Router is a popular library used with React to implement dynamic routing.
• Component Lifecycle: Provides lifecycle methods in components, like componentDidMount, componentDidUpdate, componentWillUnmount.
• Server-Side Rendering (SSR): React supports server-side rendering (SSR) through frameworks like Next.js.
• React Native: React enables cross-platform mobile application development through React Native.
• Strong Community and Ecosystem: React has a large, active community with a vast range of third-party libraries, and resources.
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