title: Ember.js - how to 'get' computed properties
body: <p>I have successfully created and bound computed properties, but how can I get at them manually in other parts of my code?</p>
  
  <pre><code>App.Test = Ember.Object.extend(
     value: "1"
     unit: "INCH"
  
     display: (-&gt;
       value = this.get('value')
       unit = this.get('unit')
       return "#{value} #{unit}"
     ).property('value', 'unit')
  )
  </code></pre>
  
  <p>How do I call the 'display' method in, say, a controller? The following shows what I thought would work...</p>
  
  <pre><code>myTest = App.Test.create()
  displayValue1 = myTest.get('display')
  displayValue2 = myTest.display()
  </code></pre>
  
  <p>displayValue1 just returns me an object, not a string. displayValue2 throws a 'no function found" error. So how do I access this property other than a binding?</p>