JSFiddle - React, Tailwind, and code Playground

HTML

<table>
 <tr>
   <td><input name="[0].Sched" type="text" value="1" /></td>
   <td><input name="[0].Comp" type="text" value="1" /></td>
   <td><input name="[0].NoShow" type="text" value="1" /></td>                    
   <td>Total: <input name="[0].TotalHours" type="text" value="0" /></td>
 </tr>
 <tr>
   <td><input name="[1].Sched" type="text" value="0" /></td>
   <td><input name="[1].Comp" type="text" value="0" /></td>
   <td><input name="[1].NoShow" type="text" value="2" /></td>                    
   <td>Total: <input name="[1].TotalHours" type="text" value="0" /></td>
 </tr>
 </table>

JavaScript

$('tr').each(function() {
    var totalHours = 0;

    $(this).find('input').each(function() {
        if ($(this).attr("name").search("Sched") != -1 
                || $(this).attr("name").search("Comp") != -1 
                || $(this).attr("name").search("NoShow") != -1) {
            totalHours += Number($(this).val());
        } 

    });

    $(this).find('input[name*="TotalHours"]').val(totalHours);
});