JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/ui-lightness/jquery-ui.css">
<div id="dynamicTable" columns="26,40,41,21,71,39,23,19">

JavaScript

var columns = $('#dynamicTable').attr('columns');
var attributeIds = columns.split(',');
var len = attributeIds.length;

while( len-- ) {
    attributeIds[len] = +attributeIds[len];
}
alert(attributeIds);