JSFiddle - React, Tailwind, and code Playground

HTML

<h2>Testing trigger</h2>

<span class="Update" onclick="test();">Update</span>

CSS

body { padding:20px; color:#242424; font-family: "Lucida Grande", Tahoma, "Trebuchet MS"; }

h2 { background:#5279a4; color:#fff; padding:5px; }
div { padding:5px; }

JavaScript

// mcpDESIGNS

    $('.Update').on('click', function () {
           test();
    });
    
    $('.Update').trigger('click');
    
    function test () {
        alert('here');
    }