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React is a JavaScript library for building user interfaces. Some of the key features of React include:-
Declarative: React makes it easy to build interactive UIs by creating declarative components that describe the desired UI.
Reusable components: Components can be reused and composed to build complex UIs, making it easy to develop and maintain large applications.
Virtual DOM: React uses a virtual DOM (a lightweight in-memory representation of the actual DOM) to optimize updates and reduce the number of DOM manipulations required. This can improve the performance of an application.
Server-side rendering: React can be rendered on the server as well as in the browser, making it a good choice for isomorphic (universal) applications that can run on both the client and the server.
Unidirectional data flow: React follows a unidirectional data flow, which can make it easier to reason about and debug an application.
JSX: React uses JSX, a syntax extension to JavaScript, to describe the UI. This allows developers to write HTML-like code that is transformed into JavaScript before being rendered in the browser.