Create a bookmarklet with jQuery

[Costas]

Script appending from jQuery’s source code, adapted by Paul Irish. Tested & working on Chrome Snippets as well!

(function(){

    // the minimum version of jQuery we want
    var v = "1.3.2";

    // check prior inclusion and version
    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;
                initMyBookmarklet();
            }
        };
        document.getElementsByTagName("head")[0].appendChild(script);
    } else {
        initMyBookmarklet();
    }

    function initMyBookmarklet() {
        (window.myBookmarklet = function() {
            // your JavaScript code goes here!
        })();
    }

})();

src - https://www.smashingmagazine.com/2010/05/make-your-own-bookmarklets-with-jquery/