MediaWiki:Common.js

(function () {
    if (!window.SLOADED) {
        window.SLOADED = {};
        window.RELOAD = true;
    } else {
        window.RELOAD = false;
    }
   
    function loadScript(url, options = {}, dataset = {}) {
        return new Promise((resolve, reject) => {
            if (window.SLOADED[url]) resolve();
            const script = document.createElement("script");
            script.src = url;
            script.async = "async";
            Object.assign(script, options);
            Object.assign(script.dataset, dataset);
            script.onload = () => {
                window.SLOADED[url] = true;
                resolve();
            };
            script.onerror = (e) => reject(e);
            document.head.appendChild(script);
        });
    }
    loadScript("/site/mediawiki-lib.js")
})();