Angular JS实战：英文原版解读

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"Angular JS in Action 是一本英文原版书籍，由 Lukas Ruebbelke 和 Brian Ford 合著，由 Manning 出版社发行。这本书深入介绍了 AngularJS 框架，适合对前端开发感兴趣的读者。书中可能包含了关于 AngularJS 的核心概念、组件、指令、数据绑定、依赖注入等内容，并通过实例帮助读者理解和应用 AngularJS 技术。" AngularJS，由 Google 主导开发，是一个强大的前端 JavaScript 框架，用于构建动态 web 应用。在 "Angular JS in Action" 这本书中，作者们旨在深入浅出地讲解 AngularJS 的各个方面，帮助读者从基础到高级，逐步掌握这一框架。 AngularJS 的主要特性包括： 1. **双向数据绑定**：AngularJS 提供了一种简便的方式来实现视图和模型之间的同步。这意味着当模型发生变化时，视图会自动更新，反之亦然。这减少了手动操作 DOM（文档对象模型）的需要，简化了代码。 2. **指令系统**：AngularJS 引入了自定义 HTML 属性的概念，称为指令。这些指令扩展了 HTML，使其能表达更丰富的逻辑。例如，`ng-repeat` 可以用来迭代数组并渲染多个元素，`ng-if` 用于条件性地显示或隐藏元素。 3. **依赖注入**：AngularJS 的依赖注入（DI）系统允许开发者轻松地在不同组件之间共享服务和对象。通过在控制器、服务和其他组件中声明依赖，AngularJS 自动管理这些依赖的创建和注入。 4. **模块化**：AngularJS 应用由模块组成，这使得代码组织更加有序。开发者可以创建自己的模块，包含控制器、服务、指令等，方便复用和维护。 5. **表单处理和验证**：AngularJS 提供了内置的表单处理机制，可以轻松实现客户端验证，确保数据在提交之前符合预设的规则。 6. **服务**：AngularJS 包含了许多内置服务，如 $http 用于与服务器进行 HTTP 通信，$q 用于异步编程，$resource 用于与 RESTful API 交互等。同时，用户也可以自定义服务。 7. **路由**：AngularJS 的 `$routeProvider` 或 `$stateProvider`（在 AngularJS 1.x 版本中）用于管理应用的路由，使单页应用（SPA）能够根据 URL 跳转至不同的视图。通过阅读 "Angular JS in Action"，读者可以学习如何有效地利用这些特性来构建高效、可维护的 AngularJS 应用。书中可能还会涵盖最佳实践、性能优化、测试策略以及与其它库和工具（如 jQuery、Bootstrap 等）的集成方法。此外，作者可能会提供实战案例，让读者通过实际操作来巩固所学知识。这本书对于想要提升 AngularJS 技能的前端开发者来说是一份宝贵的资源。

preface

Never in my wildest dreams did I think that I would be an author, and yet here I am. I

vividly remember the panic that I felt as I clicked “Publish” on my first WordPress post

on Angular

JS. It felt like I was pressing the launch button for a series of missiles, and I

had no idea where they would go! Little did I know that I had in fact released a series

of missiles that would change my life in the most profound and unexpected ways.

The moment I decided that I cared more about being helpful than being perfect

was one of the most important turning points of my life. Beginning with a series of

barely passable blog posts, by accepting every opportunity to implement feedback I

gradually grasped what it takes to write a solid blog post. It was also during that time

that I had the opportunity to become friends with the Angular

JS core team. AngularJS

at the time was still relatively unknown, and so it was much easier to get on their radar

than it is now. Lucky me!

I’ll never forget that afternoon when I got the email asking if I was interested in

writing this book. When I was pretty sure that no one was looking, I would break out

into this little happy dance for days. If only my high school English teacher could see

me now!

From that moment, I have considered it a great privilege to share with you the

things I’ve learned while building some large applications and writing untold lines of

Angular

JS code. It’s been a most excellent journey, and I thank each and every one of

you for making this possible!

UKAS RUEBBELKE

Licensed to Mark Watson <nordickan@gmail.com>

ABOUT THIS BOOK

xviii

Part 1, “Get acquainted with AngularJS,” introduces the high-level pieces of Angu-

larJS and talks about what each piece does and how they fit together (chapter 1). To

reiterate these concepts, we build out our first Angular

JS application, a simplified ver-

sion of the main sample application, in chapter 2.

Part 2, “Make something with AngularJS,” gets into more advanced and specific top-

ics, such as server-side communication, directives, animations, routing, and forms and

validations. In each chapter, we look at the underpinnings of the topic and then see

how it appears in the context of a real application. We end each chapter with a discus-

sion on testing and best practices. Chapter 3 discusses how views and controllers work

together in Angular

JS to control what the user sees, as well as capture user interactions

and convey those events for processing. Chapter 4 expands on controllers by introduc-

ing services and then showing how to communicate with a remote server using the

$http

service. Chapter 5 introduces directives and shows how directives turn layouts

into components while providing complex functionality. We’ll kick our layouts up a

notch in chapter 6 by adding in animations using

ngAnimate

. Chapter 7 digs into using

routes in AngularJS to deep-link to specific states in the application, preloading specific

data using

resolve

, and passing variables from route to route using

$routeParams

Chapter 8 finishes off with a discussion on how to use form validation to enhance the

user experience while providing safeguards around the data being entered.

There are also four appendixes about setting up Karma, setting up a Node.js

server, setting up a Firebase server, and running the sample app.

Source code conventions and downloads

The source code in the book, whether in code listings or snippets, is in a

fixed-width

font

this

, which sets it off from the surrounding text. In some listings, the code

is annotated to point out key concepts, and numbered bullets are sometimes used in

the text to provide additional information about the code. The code is formatted so

that it fits within the available page space in the book by adding line breaks and using

indentation carefully.

All of the source code for the examples in the book can be found at this Github

link: https://github.com/angularjs-in-action. The sample application for the book is

at this repository: https://github.com/angularjs-in-action/angello. The simplified

version of the application is at this repository: https://github.com/angularjs-in-

action/angello-lite.

You can also find detailed instructions on how to get the applications up and run-

ning in the readme file. Visit the repo often for updates and bug fixes to the project as

well as bonus repositories.

The source code is also available for download from the publisher’s website at

www.manning.com/Angular

JSinAction.

NOTE At the time of this writing, Angular 2 is in an alpha release and not

yet ready for writing non-trivial applications. With that said, we’ll be pub-

lishing an Angular 2 version of Angello as soon as it makes sense.

Licensed to Mark Watson <nordickan@gmail.com>

ABOUT THIS BOOK

xix

Software requirements

To run the sample applications, you’ll need to have Node.js installed. You can find the

installation instructions for Node.js at this link: https://nodejs.org/. To run the tests,

it’s also necessary to have Karma installed to execute the unit tests. You can find instruc-

tions on how to install Karma at their website: http://karma-runner.github.io/0.12/

index.html.

We also recommend installing the serve npm module, a lightweight web server to

display your web applications in the browser: https://www.npmjs.com/package/serve.

Resources

■

The most valuable resources for the book are the repositories you will find at

the link https://github.com/angularjs-in-action.

■

You can also see a live version of Angello at the companion site for the book at

this link: http://www.angelloinaction.com/.

■

And you’ll find a ton of helpful material at the blog “One Hungry Mind” here:

http://onehungrymind.com/. Additional content relating to Angello, based

on reader feedback, will be posted.

Author Online

Purchase of AngularJS 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 other users. To access the forum and

subscribe to it, point your web browser to www.manning.com/AngularJSinAction. This

Author Online (

AO) 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 among individual readers and between readers and 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 suggest you try

asking the authors some challenging questions, lest their interest stray!

The

AO forum and the archives of previous discussions will be accessible from the

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

Licensed to Mark Watson <nordickan@gmail.com>

www.allitebooks.com

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