can also create a subclass...">

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  <meta name="twitter:title" content="Classes and Instances - The Object Model - Ember Guides">

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  <meta name="twitter:description" content="Defining Classes 

To define a new Ember class, call the extend() method on Ember.Object: 

Person = Ember.Object.extend({ say: function(thing) { alert(thing); } });  

This defines a new Person class with a say()