Why I can not use a variable for the :eq filter to append data to an unordered list?
<p>Why I can not use a variable counter for the :eq filter to append data to an unordered list?</p>

<p>For example, the code is not working. It not being updated into the div of unordered list.</p>

<pre><code> $('#list li:eq("+ counter +")').append('&lt;li&gt;' + variable + '&lt;li&gt;');
</code></pre>
