[jQuery] Re: select the last 2 elements in list

[Karl Swedberg]

On Oct 20, 2007, at 8:41 AM, figo2476 wrote:

e.g.

<ul>
<li>a</li>
<li>b</li> <-
<li>c</li> <-
</ul>

I did:
<script type="text/javascript">
                $(document).ready(function() {
                   $("#update li:last").addClass("last_li");
                   $(jQuery.sibling("#update
li:last").prev).addClass("sec_last_li");
                });
</script>

The last element works, but not the 2nd last....


Hi there,

Your "second to last" line could be rewritten like this:

        $("#update li:last").prev().addClass("sec_last_li");

You could also write it like this:

        $('#update li').slice(-2, -1);

It probably makes sense, though, to chain the two selections:

	$("#update li:last").addClass("last_li").prev().addClass 
("sec_last_li");

And finally, to make it a bit more readable, you can break that into  
two lines:

        $("#update li:last").addClass("last_li")
          .prev().addClass("sec_last_li");


Hope that helps.


--Karl
_________________
Karl Swedberg
www.englishrules.com
www.learningjquery.com