JSFiddle - React, Tailwind, and code Playground

JavaScript

var $,
    s = document.createElement("script");
s.src = "http://code.jquery.com/jquery-1.4.2.js";
document.documentElement.firstChild.appendChild(s);

window.onload = function () {
    console.log($);
    window.setTimeout(function () { console.log($); }, 1000);
}