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<!-- EMBER_CLI_FASTBOOT_TITLE -->  <meta name="ember-cli-head-start" content>  <title>Classes and Instances - The Object Model - Ember Guides</title>

  <meta name="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 