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  • 7Steps
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React is a popular JavaScript library used for building user interfaces. It was developed by Facebook and was first released in 2013. React allows developers to build complex UI components by breaking them down into smaller, reusable pieces of code called "components". React operates using a "virtual DOM" which is a lightweight copy of the actual DOM. When a user interacts with a React component, the virtual DOM updates, and React determines the most efficient way to update the actual DOM. This makes React fast and efficient, as it minimizes the number of updates needed to the DOM, resulting in better performance. React also uses a declarative programming model, which means that developers simply declare what the UI should look like based on the current state of the application, and React takes care of updating the UI when the state changes. This makes it easier to reason about complex UIs and reduces the potential for bugs. React is often used alongside other libraries and frameworks, such as Redux for state management and React Router for routing. It can be used to build a wide range of applications, from simple web pages to complex, dynamic web applications.

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