JSFiddle - React, Tailwind, and code Playground
HTML
<ul id='uItem'>
<li>Item 1</li>
<li>Item 2</li>
<li>Item 3</li>
<li>Item 4</li>
</ul>
JavaScript
$('#uItem li').click(function(){
var $this = $(this);
alert($this.text() + ' \nIndex ' + $this.index());
})