JSFiddle - React, Tailwind, and code Playground

HTML

<ul id="demo-list"> 
    <li data-test="test1" >Test 1</li>
    <li data-test="test2" >Test 2</li>
    <li data-test="test3" >Test 3</li>
</ul>

JavaScript

$('#demo-list').on('click', 'li', function() {
alert($(this).data('test'));
})