Load external script

Tool to let you load external scripts

Fra og med 08.10.2017. Se den nyeste version.

Dette script bør ikke installeres direkte. Det er et bibliotek, som andre scripts kan inkludere med metadirektivet // @require https://update.greatest.deepsurf.us/scripts/33853/222461/Load%20external%20script.js

// ==UserScript==
// @name         Load external script
// @description  Tool to let you load external scripts
// @version      1
// @author       A Meaty Alt
// @grant        none
// ==/UserScript==

function loadScript(scriptURL) {
    'use strict';
    function httpGetAsync(theUrl, callback) {
        var xmlHttp = new XMLHttpRequest();
        xmlHttp.onreadystatechange = function() {
            if (xmlHttp.readyState == 4 && xmlHttp.status == 200)
                callback(xmlHttp.responseText);
        }
        xmlHttp.open("GET", theUrl, true); // true for asynchronous
        xmlHttp.send(null);
    }
    return new Promise(function(resolve){
        httpGetAsync(scriptURL, function(response){
            var s = document.createElement("script");
            s.text = response;
            document.getElementsByTagName("head")[0].appendChild(s);
            resolve();
        });
    });

}