JSFiddle - React, Tailwind, and code Playground

HTML

<button id="id_0">Test</button>
<button id="id_1">Test</button>

JavaScript

$('button').each(function (i, el) {
    
    $('#id_' + i).on('click', function() {
        (function (index) { 
            ItemClick(index);
        }(i));
    });
    
});

function ItemClick (index) {
    alert(index);
}