 <div id="ember126671" class="ember-view"><p><em><strong>Note:</strong> Observers are often over-used by new Ember developers. Observers are used
heavily within the Ember framework itself, but for most problems Ember app
developers face, computed properties are the appropriate solution.</em></p>
<p>Ember supports observing any property, including computed properties.</p>
<p>Observers should contain behavior that reacts to changes in another property.
Observers are especially useful when you need to perform 