Activate the Select2 Library on any webpage with this Javascript Bookmarklet

select2ify.js

function loadJSInclude(scriptPath, callback)
{
    var scriptNode = document.createElement('SCRIPT');
    scriptNode.type = 'text/javascript';
    scriptNode.src = scriptPath;

    var headNode = document.getElementsByTagName('HEAD');
    if (headNode[0] !== null)
        headNode[0].appendChild(scriptNode);

    if (callback !== null)
    {
        scriptNode.onreadystagechange = callback;
        scriptNode.onload = callback;
    }
}

(function(){

    var v = "1.8.3";

    if (window.jQuery === undefined || window.jQuery.fn.jquery < v) {
        var done = false;
        var script = document.createElement("script");
        script.src = "https://ajax.googleapis.com/ajax/libs/jquery/" + v + "/jquery.min.js";
        script.onload = script.onreadystatechange = function(){
            if (!done && (!this.readyState || this.readyState == "loaded" || this.readyState == "complete")) {
                done = true;

                initiateSelect2();

                
            }
        };
        document.getElementsByTagName("head")[0].appendChild(script);
    } else {
        initiateSelect2();
    }


    function initiateSelect2() {
        $('<link rel="stylesheet" type="text/css" href="https://m3dia.us/public/select2ify/select2.css" >').appendTo("head");
        loadJSInclude('https://m3dia.us/public/select2ify/select2.min.js', select2itToIt);
    }


    function select2itToIt() {
        $('select').each(function(){
            if ($(this).find('*').length > 10) {
                
                //initiate select2 sequence
                console.log($(this).attr('name'));
                $(this).select2({
                    width: "element"
                });

            }
        });
    }

})();