ead of <code>@each</code>. Computed properties dependent on an array
using the <code>[]</code> key will only update if items are added to or removed from the array,
or if the array property is set to a different array. For example:</p>
<div class="filename javascript"><div class="ribbon"></div><span>"app/components/todo-list.js"</span><pre class="language-javascript line-numbers"><code class="javascript language-javascript"><span class="token keyword">import</span> EmberObject<span class="token punctuation"