实战指南：2015年AngularJS开发实例

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"《AngularJS by Example》是一本针对Web开发者的实用指南，由Chandermani撰写，于2015年由Packt Publishing出版。该书旨在帮助读者快速上手并熟练掌握AngularJS，这是一种流行的前端框架，能够简化JavaScript Web开发过程，提升组织性。通过实例驱动的学习方式，作者引导读者亲手创建一系列实际应用，如猜数字游戏、7分钟锻炼应用和个人教练应用，使学习者能够在实践中理解Angular的核心组件，包括其MVC架构以及各个部分之间的交互。在学习过程中，读者将了解到Angular如何处理客户端与服务器间的通信，以及如何利用指令进行应用程序的扩展。书中还包含对Jasmine等测试工具的介绍，帮助开发者有效测试他们的应用程序，并提供了解决常见Angular开发挑战的技巧。这本书的独特之处在于，它不仅仅是理论教程，而是鼓励读者通过实战操作来深化对Angular的理解，从而成为构建单页应用的强大工具。版权方面，所有内容未经Packt Publishing事先书面许可，不得复制、存储或通过任何形式或媒介传播。尽管作者和出版社已尽力确保信息的准确性，但本书提供的内容并不保证无误，且不承担因使用本书信息造成的任何直接或间接损害的责任。同时，尽管作者尽力标注了书中提及的所有公司和产品的商标信息，但出版社不能保证这些信息的准确性。《AngularJS by Example》是一本适合初级到中级开发者阅读的实用手册，无论是希望通过实践学习AngularJS的新手，还是希望提升现有技能的开发者，都能从中受益匪浅。"

Table of Contents

[ vii ]

Chapter 8: Handling Common Scenarios 383

Building a new app 384

Seed projects 384

Yeoman 385

Building multilingual apps (internationalization) 388

Angular I18n support 389

Locale changes using angular-dynamic-locale 390

Using angular-translate for text translations 390

Handling authentication and authorization 394

Cookie-based authentication 395

Token-based authentication 397

Handling authorization 401

Adding authorization support 402

Communication and data sharing patterns 404

Using a URL to share data across pages 404

Using $scope 405

Using $rootScope 406

Using services 406

Inter-directive communication 407

Using events 407

Performance 408

Performance guidelines 410

Keeping the page/view small 410

Optimizing watches for read-once data 411

Hiding (ng-show) versus conditional rendering (ng-if/ng-switch) content 411

Expressions being watched should not be slow 412

Minimizing the deep model watch 412

Handling large datasets with ng-repeat 413

Avoiding mouse-movement-tracking events 414

Avoiding calling $scope.$apply 415

Lazy-loading, minication, and creating multiple SPAs 415

Caching remote data wherever appropriate 418

Using Batarang to measure performance 420

Useful third-party libraries 421

Summary 422

Index 423

Preface

[ 2 ]

What this book covers

Chapter 1, Getting Started, introduces you to the AngularJS framework. We create a

super simple app in AngularJS that highlights some core features of the framework.

Chapter 2, Building Our First App – 7 Minute Workout, will teach us how to build our

rst real AngularJS app. In the process, we learn more about the framework's MVC

constructs and are introduced to scopes and binding capabilities of the framework.

We learn about code organization using modules and dependency injection, look at

view routing in action, and learn how to use lters.

Chapter 3, More AngularJS Goodness for 7 Minute Workout, focuses on adding the bells

and whistles to the 7 Minute Workout app and in the process touches upon into

some new Angular capabilities. This chapter covers Angular services, digest cycles,

animation support, lters and few other concepts.

Chapter 4, Building Personal Trainer, introduces a new exercise where we morph

7 Minute Workout into a generic Personal Trainer app. The new app has the capability to

create new workout plans other than the original 7 Minute Workout app. In this chapter,

we exclusively focus on AngularJS form capabilities.

Chapter 5, Adding Data Persistence to Personal Trainer, covers retrieving and saving

data to the server. We augment our Personal Trainer with data load and data

persistence capabilities. Server interaction and data persistence have been ignored in

all the previous chapters.

Chapter 6, Working with Directives, explains directives by building some of our own

custom directives for the Personal Trainer app. Directives are the most powerful and

most misunderstood feature of AngularJS.

Chapter 7, Testing the AngularJS App, highlights how to use the AngularJS testing

constructs within Personal Trainer as AngularJS was built with testability in mind.

Chapter 8, Handling Common Scenarios, provides some practical tips and guidance

around scenarios that we might encounter while developing apps on this framework.

We will cover scenarios such as structuring the app for complex views, inter

controller/directive communication, common framework pitfalls, authentication and

authorization, code organization for large size apps, and other similar scenarios.

What you need for this book

Since the platform is JavaScript, you need a text editor (preferably an IDE) which you

can use to create and edit HTML, CSS, and JavaScript les.

It will be ideal if you are connected to the Internet while working on the samples as

some samples link to libraries available online. To work in ofine mode, you need to

download the libraries and change the reference in the samples.

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