 need to customize the behavior of the component you'll
need to define a subclass of <a href="https://api.emberjs.com/classes/Ember.Component.html"><code>Ember.Component</code></a>. For example, you would
need a custom subclass if you wanted to change a component's element,
respond to actions from the component's template, or manually make
changes to the component's element using JavaScript.</p>
<p>Ember knows which subclass powers a component based on its filename. For
example, if you have a component call