ilter()</code></a> method.  The filter method
expects the callback to return <code>true</code> if Ember should include it in the
final Array, and <code>false</code> or <code>undefined</code> if Ember should not.</p>
<pre class="language-javascript line-numbers"><code class="javascript language-javascript"><span class="token keyword">let</span> arr <span class="token operator">=</span> <span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span> <span cl