Backbone.js实战秘籍：打造卓越Web应用

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"这是一本名为《Backbone.js开发秘笈》的专业书籍，专注于使用Backbone.js构建高质量Web应用程序的实践方法。书中深入探讨了Backbone.js背后的模型-视图-控制器（MVC）架构原则和RESTful API设计原则。此外，它还涵盖了HTML5和移动应用开发等现代技术。该书由Vadim Mirgorod撰写，由Packt Publishing出版，英文版为Backbone.js Cookbook，包含80多个用于创建出色Web应用的食谱。" 在《Backbone.js开发秘笈》中，读者将了解到以下核心知识点： 1. **Backbone.js介绍**：Backbone.js是一个轻量级的JavaScript库，它提供了一套结构化的框架，用于组织前端代码，帮助开发者遵循MVC模式进行开发。它提供了Model、View、Collection、Router等核心组件，简化了数据管理与界面更新。 2. **模型-视图-控制器（MVC）**：Backbone.js中的MVC架构允许开发者将业务逻辑、用户界面和数据模型分离，提高代码的可维护性和可扩展性。Model处理数据和业务逻辑，View负责用户界面的展示和用户交互，Controller作为两者之间的桥梁。 3. **Model与Collection**：Model是Backbone.js中表示数据的基本单元，它可以绑定到服务器上的数据源。Collection是Model的集合，提供了对一组数据的操作和管理，如排序、筛选和遍历等。 4. **View**：View是用户界面的表示层，它负责渲染和响应用户交互。Backbone.js的View支持事件委托，可以有效地管理和更新DOM元素。 5. **Router**：Router是Backbone.js中实现客户端路由的关键，它允许根据URL变化来触发不同的功能或视图，实现了单页应用（SPA）的导航。 6. **RESTful API**：书中会介绍如何利用Backbone.js与RESTful服务进行通信。REST是一种网络应用程序的设计风格，通过HTTP协议与服务器交换数据，使得前端和后端能以统一的方式进行交互。 7. **HTML5**：由于HTML5引入了许多新的特性和API，书中可能会讨论如何结合Backbone.js利用这些特性，如离线存储、WebSocket实时通信、GeoLocation定位等，以提升Web应用的性能和用户体验。 8. **移动应用开发**：随着移动设备的普及，本书还会涉及使用Backbone.js开发移动Web应用的技巧和注意事项，包括响应式设计、触摸事件处理以及优化移动设备性能的方法。 9. **实践食谱**：书中的80多个食谱提供了具体的解决方案和实例，帮助读者解决在实际开发中遇到的各种问题，从基础用法到高级技巧，覆盖了Backbone.js开发的各个层面。通过阅读《Backbone.js开发秘笈》，开发者不仅可以深入理解Backbone.js的工作机制，还能学习到如何在实际项目中高效地运用这个强大的库，提升Web应用的开发效率和质量。

Preface

When we wish to draw your attention to a particular part of a code block, the relevant lines or

items are set in bold:

var InvoiceItemModel = Backbone.Model.extend

({

// Define validation criteria.

validate: function(attrs) {

if (attrs.quantity <= 0) {

return "quantity can't be negative or equal to zero";

}

});

Any command-line input or output is written as follows:

$ npm install -g requirejs

New terms and important words are shown in bold. Words that you see on the screen,

in menus, or dialog boxes for example, appear in the text like this: "When user clicks on

the Add button, the following popup is generated and shown to the user:".

Warnings or important notes appear in a box like this.

Tips and tricks appear like this.

Reader feedback

Feedback from our readers is always welcome. Let us know what you think about this

book—what you liked or may have disliked. Reader feedback is important for us to develop

titles that you really get the most out of.

To send us general feedback, simply send an e-mail to feedback@packtpub.com,

and mention the book title via the subject of your message.

If there is a topic that you have expertise in and you are interested in either writing or

contributing to a book, see our author guide on www.packtpub.com/authors.

Understanding Backbone

Backbone.js is becoming more popular day by day and is being used on a large scale for web

applications and IT startups; some of them are as follows:

f Groupon Now!: The team decided that their rst product would be AJAX-heavy

but should still be linkable and shareable. Though they were completely new to

Backbone, they found that its learning curve was incredibly quick, so they were

able to deliver the working product in just two weeks.

f Foursquare: This used the Backbone.js library to create model classes for the

entities in foursquare (for example, venues, check-ins, and users). They found that

Backbone's model classes provide a simple and light-weight mechanism to capture

an object's data and state, complete with the semantics of a classical inheritance.

f LinkedIn mobile: This used Backbone.js to create its next-generation HTML5

mobile web app. Backbone made it easy to keep the app modular, organized,

and extensible, so it was possible to program the complexities of LinkedIn's

user experience. Moreover, they are using the same code base in their mobile

applications for iOS and Android platforms.

f WordPress.com: This is a SaaS version of Wordpress and uses Backbone.js models,

collections, and views in its notication system, and is integrating Backbone.js into

the Stats tab and into other features throughout the home page.

f Airbnb: This is a community marketplace for users to list, discover, and book unique

spaces around the world. Its development team has used Backbone in many latest

products. Recently, they rebuilt a mobile website with Backbone.js and Node.js tied

together with a library named Rendr.

You can visit the following links to get acquainted with other usage examples of Backbone.js:

http://backbonejs.org/#examples

Backbone.js was started by Jeremy Ashkenas from DocumentCloud in 2010 and is now being

used and improved by lots of developers all over the world using Git, the distributed version

control system.

In this chapter, we are going to provide some practical examples of how to use Backbone.js,

and we will structure a design for a program named Billing Application by following the MVC

and Backbone pattern. We will also refer to this structure in the later chapters of this book.

Reading this chapter is especially useful if you are new to developing with Backbone.js.

If you feel that you're an experienced developer, you can skip this chapter.

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Backbone.js实战秘籍：打造卓越Web应用

Backbone.js开发秘笈源码

python列表中的存储形式为[('backbone.layer.1',tensor[(1,2,3)]),('backbone.layer.3',tensor[(1,2,3)]),('backbone.layer.2',tensor[(1,2,3)]将backbone.删除)]

backbone.conv.0.weight", "backbone.conv.0.bias

中文解释backbone.conv.0.weight", "backbone.conv.0.bias

RuntimeError: Error(s) in loading state_dict for YoloBody: Missing key(s) in state_dict: "backbone.conv1.weight", "backbone.bn1.weight", "backbone.bn1.bias", "backbone.bn1.running_mean", "backbone.bn1.running_var",

Web中Backbone的优缺点

python列表中的存储形式为[('backbone.layer.1',tensor([1,2,3],device='cuda:0')),('backbone.layer.3',tensor([1,2,3],device='cuda:0')),('backbone.layer.2',tensor([1,2,3],device='cuda:0'))]将,device='cuda:0'删除

Web中Backbone的介绍

backbone发展方向

backbone.eval()的意思

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