React.js is a popular JavaScript library that is keyword-oriented, making it easy to develop highly interactive and dynamic web applications. By using a component-based approach, developers can create reusable UI elements that can be easily managed and updated when needed. React's virtual DOM efficiently updates the user interface, resulting in faster performance and a smoother user experience. With its declarative syntax, React allows developers to write code that is more predictable and easier to maintain. Overall, React.js is a versatile and powerful tool for building modern web applications with a focus on keyword-oriented design principles.

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