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 query parameters


Query parameters allow you to use the URL for the application state. In these recipes, we'll use query parameters in several different ways to show how it works.

How to do it...

Query parameters are optional key-value pairs. They will appear to the right of ? in a URL.

  1. In a new project, generate a new application controller:

    $ ember g controller application
    

    The application controller will be generated in the app/controllers folder.

  2. Update the application controller with a new queryParams for student:

    / app/controllers/application.js
    import Ember from 'ember';
    
    export default Ember.Controller.extend({
        queryParams: ['student'],
        student: null
    });

    This will set up the binding between the student query parameter in the URL and the student property in the controller. If either one changes, the other will change as well.

    If the student property was set to anything other than null, then the student property will have a default value. This is important to remember because...