JavaScript Web Applications - MVC架构英文版

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"基于MVC的JavaScript Web 富应用开发英文版" 本书《JavaScript Web Applications》由Alex MacCaw编写，详细介绍了如何使用JavaScript技术构建基于MVC（Model-View-Controller）架构的富互联网应用程序。MVC模式是一种软件设计模式，广泛应用于Web应用开发，它将数据模型、用户界面和应用逻辑分离开来，使得代码更易于维护和扩展。在书中，作者探讨了JavaScript在Web应用中的核心角色，特别是在创建动态、交互性强的用户体验方面。JavaScript Web Applications涵盖了以下关键知识点： 1. **JavaScript基础**：讲解了JavaScript语言的基础语法、数据类型、函数、对象以及闭包等概念，这些都是理解JavaScript编程的关键。 2. **DOM操作**：DOM（Document Object Model）是HTML和XML文档的结构化表示，书中会讲解如何使用JavaScript操作DOM，实现页面动态更新和用户交互。 3. **Ajax**：无刷新的数据交换技术，让Web应用可以异步地与服务器通信，提升用户体验。书中会介绍如何使用XMLHttpRequest对象进行Ajax请求，并处理响应数据。 4. **MVC架构**：详细解释了MVC模式的工作原理，包括模型层如何存储和管理数据，视图层如何展示数据，以及控制器如何协调两者之间的交互。 5. **事件驱动编程**：JavaScript是事件驱动的，书中会讲解如何监听和处理各种用户事件，以及如何组织事件驱动的应用程序结构。 6. **框架和库**：可能会涉及一些流行的JavaScript MVC框架，如Backbone.js、AngularJS或Ember.js，它们为开发者提供了构建大型Web应用的工具和最佳实践。 7. **性能优化**：讨论JavaScript代码的性能优化技巧，包括减少HTTP请求、压缩代码、缓存策略等，以提高Web应用的加载速度和运行效率。 8. **测试和调试**：介绍如何对JavaScript代码进行单元测试，以及使用开发者工具进行调试，确保代码的质量和稳定性。 9. **应用程序的部署和维护**：讨论如何将开发完成的应用部署到生产环境，以及在实际运行中如何进行监控和问题排查。 10. **最佳实践**：提供了一些开发JavaScript Web应用的最佳实践，帮助开发者避免常见的陷阱，写出更健壮、可维护的代码。通过阅读本书，读者将能够掌握构建富互联网应用所需的技术和理念，从而能够利用JavaScript开发出高效、用户友好的Web应用。无论你是初学者还是有经验的开发者，这本书都是一份宝贵的资源，能帮助你在JavaScript Web开发领域深入学习和成长。

Chapter 12

Backbone is an extremely popular library for building JavaScript applications, and

this chapter will give you a thorough introduction. We’ll take you through the core

concepts and classes of Backbone, such as models, collections, controllers, and

views. Next, we’ll explore syncing model data with the server using RESTful JSON

queries and how to respond to Backbone appropriately server side. Finally, we’ll

build an example to-do list application that will demonstrate much of the library.

Chapter 13

This chapter explores the JavaScriptMVC library, a popular jQuery-based

framework for building JavaScript web applications. You’ll learn all the basics of

JavaScriptMVC, such as classes, models, and controllers, as well as using client-

side templates to render views. The chapter ends with a practical CRUD list ex-

ample, demonstrating how easy it is to create abstract, reusable, memory-safe

widgets with JavaScriptMVC.

Appendix A

This appendix provides a brief introduction to jQuery, which is useful if you feel

you need to brush up on the library. Most of the book’s examples use jQuery, so

it’s important to be familiar with it. We’ll cover most of the core API, such as

traversing the DOM, manipulating the DOM, and event binding, triggering, and

delegating. Next, we’ll approach jQuery’s Ajax API, making GET and POST JSON

requests. We’ll then cover jQuery extensions and how to use encapsulation to

ensure you’re being a good web citizen. Finally, we’ll take a look at a practical

example: creating a Growl jQuery plug-in.

Appendix B

Appendix B covers Less, a superset of CSS that extends its syntax with variables,

mixins, operations, and nested rules. Less can really reduce the amount of CSS you

need to write—especially when it comes to CSS3 vendor–specific rules. This ap-

pendix covers Less’s major syntax enhancements and how to use the command

line’s tools and JavaScript library to compile Less files down to CSS.

Appendix C

The last appendix is a CSS3 reference. It provides a bit of background on CSS3,

explains vendor prefixes, and then takes you through the major additions to the

specification. Among other CSS3 features, this appendix covers rounded corners,

rgba colors, drop shadows, gradients, transitions, and transformations. It ends with

a discussion about graceful degradation using Modernizr and a practical example

of using the new box-sizing specification.

xiv | Preface

and blossoming trees, and some even on remote Cambodian islands. In short, I had a

great time writing this, and I hope reading it gives you just as much pleasure.

Some people deserve their share of the blame. Thanks go to Stuart Eccles, Tim Malbon,

Ben Griffins, and Sean O’Halpin for giving me the chances and opportunity to find my

passion; and to James Adam, Paul Battley, and Jonah Fox for mentoring and putting

up with my asininities.

Thanks also to the technical reviewers, who really helped shape the book: Henrik Jor-

eteg, Justin Meyer, Lea Verou, Addy Osmani, Alex Barbara, Max Williams, and Julio

Cesar Ody.

Most importantly, thanks to my parents for their unwavering support.

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xviii | Preface

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