jQuery this.hash behavior for in page anchor links

Question

I have a question about how this.hash works for in page anchor links in jQuery.

I need to process the hash attribute every time the user clicks on that link.

Answer 1

because the selector $(this.hash) finds nothing in the second case, this.hash return #foo and then $("#foo") looks for the element with id foo which in the second case return nothing

http://jsfiddle.net/BQU3u/5/