relationships, and behavior of the data that you
present to the user.</p>
<p>Models define the type of data that will be provided by your server. For
example, a <code>Person</code> model might have a <code>firstName</code> attribute that is a
string, and a <code>birthday</code> attribute that is a date:</p>
<div class="filename javascript"><div class="ribbon"></div><span>app/models/person.js</span><pre class="language-javascript line-numbers"><code class="javascript language-javascript"><span class="token k