Book Image

Ember.js Cookbook

By : Erik Hanchett
Book Image

Ember.js Cookbook

By: Erik Hanchett

Overview of this book

Ember.js is an open source JavaScript framework that will make you more productive. It uses common idioms and practices, making it simple to create amazing single-page applications. It also lets you create code in a modular way using the latest JavaScript features. Not only that, it has a great set of APIs to get any task done. The Ember.js community is welcoming newcomers and is ready to help you when needed. This book provides in-depth explanations on how to use the Ember.js framework to take you from beginner to expert. You’ll start with some basic topics and by the end of the book, you’ll know everything you need to know to build a fully operational Ember application. We’ll begin by explaining key points on how to use the Ember.js framework and the associated tools. You’ll learn how to effectively use Ember CLI and how to create and deploy your application. We’ll take a close look at the Ember object model and templates by examining bindings and observers. We’ll then move onto Ember components, models, and Ember Data. We’ll show you examples on how to connect to RESTful databases. Next we’ll get to grips with testing with integration and acceptance tests using QUnit. We will conclude by covering authentication, services, and Ember add-ons. We’ll explore advanced topics such as services and initializers, and how to use them together to build real-time applications.
Table of Contents (18 chapters)
Ember.js Cookbook
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Using enumerables with arrays


The Ember.Enumerable methods are very important when dealing with arrays. In these recipes, we'll look at some common use cases.

Getting ready

To understand how to use enumerables, we must first take a look at the standard JavaScript array methods and their equivalents using observable enumerables:

Standard method

Observable equivalent

unshift

unshiftObject

shift

shiftObject

reverse

reverseObjects

push

pushObject

pop

popObject

We'll be using some of these methods in our examples, so keep in mind what the standard and observable equivalents are.

The Ember.Enumerable class has several methods that we can use in our Ember applications. Here is the list of the more common methods and what they do:

Enumerable method

Definition

forEach

This iterates through the enumerable, calling the passed function on each item

firstObject

This returns the first object in a collection

lastObject

This returns the last object in a collection

map()

This maps all the...