Hello,

I found that 'this' inside of the callback function in $.map() refers to the window object, and not the current unmapped value. This is inconsistent with the other iteration functions, i.e. $().map, $.each, and with the jQuery documentation at http://docs.jquery.com/Utilities/jQuery.map#arraycallback

Here's an example that shows the different behavior between using 'this' and the passed in element object:

$.map(["hey"], function(el) { return $('<div>').text(el + ' yo'); })[0].appendTo('body');

--> "hey yo"

$.map(["hey"], function(el) { return $('<div>').text(this + ' yo'); })[0].appendTo('body');

--> "[object Window] yo"

Its a small fix - just calling the callback in the elements scope. I've attached a diff that fixes the problem.

Mike