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How is ReactJS designed?

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My teaching experience 12 years

ReactJS is designed as a declarative, component-based library for building user interfaces. Its core principles include: 1. **Virtual DOM**: React creates a virtual representation of the UI in memory, which allows it to efficiently update the actual DOM. 2. **Components**: UIs are divided into...
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ReactJS is designed as a declarative, component-based library for building user interfaces. Its core principles include: 1. **Virtual DOM**: React creates a virtual representation of the UI in memory, which allows it to efficiently update the actual DOM. 2. **Components**: UIs are divided into reusable components, which encapsulate their own logic and UI elements. 3. **Declarative Syntax**: Developers describe the desired UI state, and React handles updating the DOM to match that state. 4. **One-Way Data Binding**: Data flows in one direction, from parent to child components, making it easier to understand how data changes affect the UI. 5. **JSX**: React uses JSX, a syntax extension that allows writing HTML-like code within JavaScript, to define UI components. 6. **Lifecycle Methods**: Components have lifecycle methods that allow developers to hook into various points in a component's lifecycle, such as when it is created, updated, or destroyed. 7. **Unidirectional Data Flow**: Data flows in a single direction, which makes it easier to understand how changes in state affect the UI. Overall, React's design emphasizes simplicity, reusability, and performance. read less
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My teaching experience 12 years

React.js is a popular JavaScript library for building user interfaces. Some of its key features include: 1. **Component-Based:** React allows you to build encapsulated components that manage their own state, which makes it easier to build complex UIs. 2. **Virtual DOM:** React uses a virtual DOM...
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React.js is a popular JavaScript library for building user interfaces. Some of its key features include: 1. **Component-Based:** React allows you to build encapsulated components that manage their own state, which makes it easier to build complex UIs. 2. **Virtual DOM:** React uses a virtual DOM to improve performance by minimizing the number of DOM manipulations needed. 3. **JSX:** JSX is a syntax extension for JavaScript, which allows you to write HTML structures directly within JavaScript code. 4. **Uni-directional Data Flow:** React follows a unidirectional data flow, which means data flows in a single direction, making it easier to understand and debug applications. 5. **Reusability:** React components are highly reusable, making it easy to maintain and scale large applications. 6. **Developer Tools:** React comes with a set of developer tools that help you inspect and debug your React applications. 7. **Server-side Rendering:** React can be used for server-side rendering, which improves SEO and initial load times. 8. **Community and Ecosystem:** React has a large and active community, with a vast ecosystem of libraries and tools to enhance development productivity. These features contribute to React's popularity and its widespread use in building modern web applications. read less
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