Firebug/JQuery

(function($){
console.log(Drupal.toSource());
})(jQuery)
===============================
(function($){
console.log(JSON.stringify(Drupal));
})(jQuery)
========================
firebug
=========================
(function($){
$(document).ready(
function () {
   console.log($(window.location));
}
);
})(jQuery)

=========================
http://drupal.org/node/171213
====================
(function($) {
$(document).ready(function(){
  // http://www.jquerynewsticker.com/
});
})(jQuery);


====================
jQuery(document).ready(function($) {
console.log($("#page-title").html());
});
=====================
(function($) {
console.log($("#page-title").html());
})(jQuery);
=====================
// Using the closure to map jQuery to $.
(function ($) {
if ($('div').hasClass('content')) {
console.log('yes');
};
}(jQuery));