Node.js实战指南：Mike Cantelon, Marc Harter等人作品

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《Node.js in Action》是一本由Mike Cantelon、Marc Harter、T.J. Holowaychuk和Nathan Rajlich共同编著的专业IT书籍，专为深入理解并掌握Node.js编程技术而设计。本书旨在帮助读者全面了解Node.js的强大功能，该框架以其非阻塞I/O模型和事件驱动架构在服务器端JavaScript开发中占据重要地位。 Node.js是一种开源、跨平台的JavaScript运行环境，最初由Ryan Dahl于2009年创建，它利用V8 JavaScript引擎实现了高性能的异步I/O处理。《Node.js in Action》详细介绍了如何使用Node.js构建高效的网络应用，包括实时Web应用、Web服务、WebSocket服务器以及微服务架构中的应用。书中不仅涵盖了基础知识，如事件循环、模块系统和异步编程，还深入剖析了Node.js的核心模块如http、fs、child_process等的用法。 Isaac Z. Schlueter，Node.js的创始人之一，在序言中可能分享了Node.js的发展历程、设计理念以及其在现代软件开发中的重要性。此外，出版社Manning Publications Co.提供了购买和获取本书的途径，以及关于批量订购和版权信息。对于想要提升Node.js技能的开发者来说，这本书提供了丰富的实战案例和深入理论讲解，适合不同层次的学习者，从初学者到高级开发者都能从中受益。通过阅读《Node.js in Action》，读者可以了解到如何利用Node.js进行高效的并发处理，优化性能，以及如何利用其生态系统中的众多第三方模块来扩展功能。《Node.js in Action》是一本不可或缺的参考书，无论是在学习Node.js基础还是寻求专业进阶，都能提供坚实的技术支持，助力读者在这个热门技术领域取得成功。

preface

In early 2011, when Manning approached us with the idea of writing a book on

Node.js, the state of the Node community was much different than it is now. The com-

munity was small and, despite the fact that Node was starting to attract a great deal of

interest, Node was still considered a bleeding-edge technology by the mainstream

development community. No books had yet been written about it, and although the

idea of writing a book was daunting, we decided to go for it.

Given our respective development inclinations, we wanted to create a book that

not only focused on the use of Node for web application development, but also

explored other interesting potential uses. We wanted to provide a way for web applica-

tion developers using conventional technologies to harness Node’s vision of bringing

asynchronous development to the server.

We’ve worked for more than two years on the book, and during its writing the tech-

nology has evolved, so we’ve updated the book accordingly. In addition to the technol-

ogy changing, the community has also evolved. It is now much larger, and many

established companies have embraced Node.

For web application developers looking to try something different, this is a great

time to learn Node, and we hope our book helps you learn the technology quickly and

have fun doing so.

www.it-ebooks.info

ACKNOWLEDGMENTS xvii

I’d also like to thank my partner Malcolm for encouraging me during the book’s cre-

ation and for her patience during the times when writing kept me constantly cooped

up at home. A big thanks, as well, to my parents for bringing me up with a passion for

creativity and exploration, and for putting up with my less-than-balanced childhood

obsession with 8-bit machines. I’d also like to thank my grandparents for gifting me

with the machine that got me hooked, for life, on programming: the Commodore 64.

During the process of writing the book, T.J. and Nathan’s expertise was invaluable

and their good humor much appreciated. I thank them for taking a leap of faith and

agreeing to collaborate. Marc Harter was also a huge help, chipping in on the Hercu-

lean task of editing, proofing, and writing content that tied everything together.

MARC HARTER

Thanks to Ryan Dahl, who inspired me to take a serious look at server-side JavaScript

programming nearly four years ago. Thanks to Ben Noordhuis, an invaluable

resource on the inner workings of Node. Thanks to Bert Bates, who believed in me,

challenged me, and was always willing to help during the writing process. Thanks to

Mike, Nate, and T.J. for welcoming me in at the 11th hour. It was an honor working

with them. Thanks especially to my wife and friend Hannah, whose courage and kind-

ness carried me into and through this new venture.

NATHAN RAJLICH

I would like to start by thanking Guillermo Rauch for taking me in and helping me

find my place in the Node.js community. I would also like to thank David Blickstein

for encouraging me to take on this book project. I thank Ryan Dahl for starting the

Node.js movement, and Isaac Schlueter for doing an excellent job of stewarding this

ship for the last couple for years. Thanks also to my family, my friends, and my girl-

friend for putting up with the sleepless nights and wide range of emotions exhibited

during the process. And of course a huge thanks to my parents for supporting me

throughout the years in my computing endeavors. I wouldn’t be where I am today

without them at my side.

www.it-ebooks.info

ABOUT THIS BOOK xix

functionality to web applications. Chapters 8 provides an introduction to the Express

framework, and chapter 9 guides the reader through advanced Express usage.

With the basics of web development covered, part 2 concludes after exploring two

more related topics. Chapter 10 guides the reader through the use of various Node

testing frameworks. Chapter 11 then teaches how templating can be used in Node

web applications to separate presentation of data from logic.

Part 3 moves on to look at things beyond web development that can be done with

Node. Chapter 12 talks about how Node applications can be deployed to production

servers, how uptime can be maintained, and how performance can be maximized.

Chapter 13 explains how non-HTTP applications can be created, how to use the

Socket.io framework to create real-time applications, and the use of a number of handy

build-in Node APIs. Chapter 14, the final chapter, discusses how the Node community

works and how Node creations can be published using the Node Package Manager.

Code conventions and downloads

The code in this book follows common JavaScript conventions. Spaces, rather than

tabs, are used for indentation. Lines longer than 80 characters are avoided. In many

listings, the code is annotated to point out key concepts.

A single statement per line is used and semicolons are added at the end of simple

statements. For blocks of code, where one or more statements are enclosed in curly

braces, the left curly brace is placed at the end of the opening line of the block. The

right curly brace is indented so it’s vertically aligned with the opening line of the

block.

Source code for the examples in this book is available for download from the pub-

lisher’s website at www.manning.com/Node.jsinAction.

Author Online

Purchase of Node.js in Action includes free access to a private web forum run by Man-

ning Publications where you can make comments about the book, ask technical ques-

tions, and receive help from the authors and from other users. To access the forum

and subscribe to it, point your web browser to www.manning.com/Node.jsinAction.

This page provides information on how to get on the forum once you’re registered,

what kind of help is available, and the rules of conduct on the forum.

Manning’s commitment to our readers is to provide a venue where a meaningful

dialog between individual readers and between readers and the authors can take

place. It’s not a commitment to any specific amount of participation on the part of the

authors, whose contribution to the forum remains voluntary (and unpaid). We sug-

gest you try asking the authors some challenging questions lest their interest stray!

The Author Online forum and the archives of previous discussions will be accessi-

ble from the publisher’s website as long as the book is in print.

www.it-ebooks.info

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