How do you select an <li> that has no content?
<p>So the <code>li</code>'s in reference do not contain anything, but they do have a <code>val == ""</code> which means that the selector :</p>

<pre><code>$("li:empty")
</code></pre>

<p>.. will not work.</p>

<p>How can I simply select all the <code>li</code>'s that do not have anything in them?</p>
