JSFiddle - React, Tailwind, and code Playground

HTML

<script
  src="https://code.jquery.com/jquery-3.3.1.min.js"
  integrity="sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8="
  crossorigin="anonymous"></script>
<div class="container" id="container">
        <table class="gridtable" id="tableMain">
            <thead>
                <tr class="tableheader">
                  <th>customer</th>
                  <th>product</th>
                  <th>thedate</th>
                  <th>value</th>
                </tr>
            </thead>
            <tbody>
                <tr class="breakrow"><td>customer 01</td><td></td><td></td><td></td></tr>
                <tr class="datarow"><td>customer 01</td><td>product 01</td><td>30 10 2017</td><td>974.57</td></tr>
                <tr class="datarow"><td>customer 01</td><td>product 02</td><td>04 12 2017</td><td>634.50</td></tr>
                <tr class="datarow"><td>customer 01</td><td>product 03</td><td>30 10 2017</td><td>974.57</td></tr>
                <tr class="datarow"><td>customer 01</td><td>product 04</td><td>04 12 2017</td><td>634.50</td></tr>

                <tr class="breakrow"><td>customer 02</td><td></td><td></td><td></td></tr>
                <tr class="datarow"><td>customer 02</td><td>product 01</td><td>04 12 2017</td><td>634.50</td></tr>
                <tr class="datarow"><td>customer 02</td><td>product 02</td><td>30 10 2017</td><td>974.57</td></tr>


                <tr class="breakrow"><td>customer 03</td><td></td><td></td><td></td></tr>
                <tr class="datarow"><td>customer 03</td><td>product 01</td><td>30 10 2017</td><td>974.57</td></tr>
                <tr class="datarow"><td>customer 03</td><td>product 02</td><td>04 12 2017</td><td>634.50</td></tr>
                <tr class="datarow"><td>customer 03</td><td>product 03</td><td>30 10 2017</td><td>974.57</td></tr>

            </tbody>
        </table>
    </div>

JavaScript

$( document ).ready(function() {
	$('#tableMain tr.breakrow').on('click',function(){
	    alert('toggle');
	});
});