jQuery Determine if a matched class has a given id
<p>What is jQuery has id equivalent of the following statement?</p>

<pre><code>$('#mydiv').hasClass('foo')
</code></pre>

<p>so you could give a class name and check that it contains a supplied id.</p>

<p>something like:</p>

<pre><code>$('.mydiv').hasId('foo')
</code></pre>
