Select elements whose children don't contain specific elements in jQuery
<p>I want to select all divs on a page whose children <strong>don't</strong> contain an element with a specific class.  </p>

<p>I can select elements whose descendants <strong>do</strong> contain the class with:  </p>

<pre>
$('div').has('.myClass');
</pre>

<p>So I just want the inverse of this.  </p>
