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我正在读一本书“Real-Time Communication with WebRTC”，它说:
Node.js is an extremely powerful software platform that allows users to easily build scalable server-side applications with JavaScript. It is based on a single-threaded event loop management process making use of nonblocking I/O. The library provides a built-in HTTP server implementation, making it independent from third-party software components. With Node.js, it is really easy for the programmer to implement a high-performance HTTP server with customized behavior with just a few lines of code.
我已经使用 XAMMP 作为本地 HTTP 服务器，为什么还需要 Node.js？ Node js 和 XAMPP 有什么区别？我是 Node.js 的新手。