React.js React.js (or simply React) is a popular open-source JavaScript library for building user interfaces, particularly for single-page applications where data changes dynamically over time. React was developed by Facebook and is maintained by Facebook and a community of individual developers and companies. Key Features of React Component-Based Architecture: Components : React applications are built using components, which are independent and reusable bits of code that describe a part of the user interface. Components can be class-based or function-based. Props : Short for properties, props are read-only attributes that are passed from parent to child components. State : State is a special object that holds data that may change over the lifecycle of the component. Components can update their own state and re-render when the state changes. JSX (JavaScript XML) : JSX is a syntax extension for JavaScript that looks similar to XML or HTML. It allows developers to write HTML-like c...
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