a.js

function loadScript(a, b) {
    if (jsArray[a])b && (debugState && root.root.console.log("This script was already loaded %c: " + a, debugStyle_warning), b()); else {
        jsArray[a] = !0;
        var c = document.getElementsByTagName("body")[0], d = document.createElement("script");
        d.type = "text/javascript", d.src = a, d.onload = b, c.appendChild(d)
    }
}