selecting items by class inside element on jQuery
<p>I try to pick all the child <code>.preview</code> elements inside <code>.dropzone</code> parent.</p>

<pre><code>$('.dropzone').add($('.preview')).length
</code></pre>

<p>This returns 3 but there are 2 objects. I guess it is counthing also the <code>.dropzone</code> container. </p>

<p>How can I choose only the two <code>.preview</code> items?</p>
