JSFiddle - React, Tailwind, and code Playground
HTML
<ul>
<li><img id='1' src='/img1.png'></li>
<li><img id='2' src='/img2.png'></li>
<li><img id='3' src='/img3.png'></li>
</ul>
JavaScript
$('img').click(function()
{
var datastring = $(this).attr('id');
alert(datastring); //for testing
})