Classes and Instances As you learn about Ember, you'll see code like Ember.Component.extend() and DS.Model.extend(). Here, you'll learn about this extend() method, as well as other major features of the Ember object model. Defining Classes To define a new Ember class, call the extend() method on Ember.Object: const Person = Ember.Object.extend({ say(thing) { alert(thing); } }); This defines a new Person class with a say() method. You can also create a subclass from any existing class

Ember.Checkbox Class PUBLIC Extends: Ember.Component Defined in: packages/ember-htmlbars/lib/components/checkbox.js:10 Module: ember-views The internal class used to create text inputs when the {{input}} helper is used with type of checkbox. See Ember.Templates.helpers.input for usage details. Direct manipulation of checked The checked attribute of an Ember.Checkbox object should always be set through the Ember object or by interacting with its rendered element representation via the mous

Built-in Helpers Built-in Helpers In the last section you learned how to write a helper. A helper is usually a simple function that can be used in any template. Ember comes with a few helpers that can make developing your templates a bit easier. These helpers can allow you to be more dynamic in passing data to another helper or component. Using a helper to get a property dynamically The {{get}} helper makes it easy to dynamically send the value of a variable to another helper or component. Th

Building a Simple Component As a user looks through our list of rentals, they may want to have some interactive options to help them make a decision. Let's add the ability to toggle the size of the image for each rental. To do this, we'll use a component. Let's generate a rental-listing component that will manage the behavior for each of our rentals. A dash is required in every component name to avoid conflicting with a possible HTML element, so rental-listing is acceptable but rental isn't.

Building a Complex Component As they search for a rental, users might also want to narrow their search to a specific city. Let's build a component that will let them filter rentals by city. To begin, let's generate our new component. We'll call this component list-filter, since all we want our component to do is filter the list of rentals based on input. ember g component list-filter As before, this creates a Handlebars template (app/templates/components/list-filter.hbs), a JavaScript file (

Bindings Unlike most other frameworks that include some sort of binding implementation, bindings in Ember.js can be used with any object. That said, bindings are most often used within the Ember framework itself, and for most problems Ember app developers face, computed properties are the appropriate solution. The easiest way to create a two-way binding is to use a computed.alias(), that specifies the path to another object. husband = Ember.Object.create({ pets: 0 }); Wife = Ember.Object.e

toStringStringpublic Defined in packages/ember-metal/lib/binding.js:121 Returns: String string representation of binding

to (path) Ember.Bindingpublic Defined in packages/ember-metal/lib/binding.js:87 This will set the to property path to the specified value. It will not attempt to resolve this property path to an actual object until you connect the binding. The binding will search for the property path starting at the root object you pass when you connect() the binding. It follows the same rules as get() - see that method for more information. Parameters: path String|Tuple A property path or tuple. R

oneWayEmber.Bindingpublic Defined in packages/ember-metal/lib/binding.js:106 Configures the binding as one way. A one-way binding will relay changes on the from side to the to side, but not the other way around. This means that if you change the to side directly, the from side may have a different value. Returns: Ember.Binding `this`

from (path) Ember.Bindingpublic Defined in packages/ember-metal/lib/binding.js:68 This will set from property path to the specified value. It will not attempt to resolve this property path to an actual object until you connect the binding. The binding will search for the property path starting at the root object you pass when you connect() the binding. It follows the same rules as get() - see that method for more information. Parameters: path String The property path to connect to.