Find and remove all child rows of table where attribute is undefined
<p>How to find all rows of a table where attribute <code>[data-order]</code> is undefined?</p>

<pre><code>this.tbl_list[0].rows.find('[data-order="undefined"]').remove();
</code></pre>

<p>this returns:</p>

<pre><code>this.tbl_list[0].rows.find is not a function
</code></pre>
