Learning Node.js: a hands-on guide to building web applications in JavaScript

摘要

A tutorial on Node.js, a new way to develop web applications, is offered in this book. The old way of writing web applications is to send a request to a server, which starts a new thread of processing for each request; this results in high memory use on the server. Node.js allows developers to write web applications in JavaScript, using Google Chrome's V8 JavaScript engine. It operates on a single thread, using nonblocking input/output (I/O) calls, allowing it to support tens of thousands of concurrent connections. This platform is under active development. In fact, as of April 2014, it has not yet reached version 1.0.