JSFiddle - React, Tailwind, and code Playground

by genesis

HTML

<div id="row_1" class="active_page workorders_edit"></div>

<div id="classname"></div>

JavaScript

$(function(){
    
    
    var classname = $('.active_page').attr('class').split(' ')[1];
    
    $('#classname').text(classname);
    
});