Re: [jQuery] Change opacity of item with class of selected

Just put the class in the selector instead of testing for it first:

$("#portfolio #thumbs li.selected").css('opacity','0.5');

If the class doesn't exist, jQuery will do nothing (instead of
throwing an "undefined" error or similar).

On Tue, Jan 5, 2010 at 12:45 PM, Paul Collins <pauldcollins@gmail.com> wrote:
> Hi all
>
> I've been stuck on this for four hours, and I still can't solve it!
>
> I am trying to check if a list item has a class of selected, then is so
> change the opacity to 0.5. Here is my code:
>
>     if ($("#portfolio #thumbs ul li").hasClass(".selected")) {
>         $(this).css('opacity','0.5');
>     }
>
> It seems that the "this" part isn't working, is it to do with putting it in
> an event?
>
> Would appreciate any help
>
>
>