<a href="#C2_L3" id=C2_L3></a><a href="#C2_L4" id=C2_L4></a></span></code></pre>
<p>All of the Ember.js conveniences are available for
modifying attributes. For example, you can use <code>Ember.Object</code>'s
<a href="https://api.emberjs.com/ember/3.4/classes/EmberObject/methods/incrementProperty?anchor=incrementProperty"><code>incrementProperty</code></a> helper:</p>
<pre class="language-javascript line-numbers"><code class="javascript language-javascript">person<span class="token punctuation">.</span><sp