JSFiddle - React, Tailwind, and code Playground

JavaScript

window.onload = function() {
    var head = document.getElementsByTagName("head")[0];
    var script = document.createElement("script"); 
 
    script.setAttribute("type", "text/javascript");
    script.setAttribute("src", "http://code.jquery.com/jquery-1.7.1.min.js");
    
    head.addEventListener("load", function(event) {
        if (event.target.nodeName === "SCRIPT")
        {
            alert("Script loaded: " + event.target.getAttribute("src"));
        }
    }, true);
    
    head.appendChild(script); 
}