Bookmarklet Infinite Loader

javascript:(function ($) {
    var pages = 20;
    function getPosts(page) {
        $.get("page/" + page + "/?rand=" + (new Date()).getTime(), function (d) {
            $("#post-wrapper").append($(d).find("div.post-wrapper-hentry"));
            if (page + 1 < pages) { getPosts(page + 1); }
        });
    } if (window.jQuery) { getPosts(2); } else {
        var s = document.createElement('script');
        s.type = "text/javascript";
        s.src = "//code.jquery.com/jquery-3.5.1.min.js";
        s.onload = function () { $ = window.jQuery; getPosts(2); };
        document.getElementsByTagName("head")[0].appendChild(s);
    }
})(window.jQuery)