il the property is explicitly called.
Therefore you need to access services in your component using the <code>get</code> function otherwise you might get an undefined.</p>
<p>Once loaded, a service will persist until the application exits.</p>
<p>Below we add a remove action to the <code>cart-contents</code> component.
Notice that below we access the <code>cart</code> service with a call to<code>this.get</code>.</p>
<div class="filename javascript"><div class="ribbon"></div><span>app/components/cart-content