On Feb 1, 2009, at 3:06 AM, Pedram wrote:
I have another tiny question
$("Ul li a"), $("ul a"), $("a",$("ul"))
which one has the great performance !!?
I would go with either $('ul a') or $('a', 'ul'), but $('ul a') seems
more readable to me, as it follows the CSS syntax.
Since it's not possible in a valid DOM to have an A that is a
descendant of a UL but not a descendant of an LI, the LI is
superfluous. No need to do an extra getElementsByTagName there.
Also, if you're using a contextual selector, you don't need to wrap
the context in its own jQuery object -- $("a",$("ul")).
--Karl
On Feb 1, 12:02 am, Pedram <pedram...@gmail.com> wrote:
I just had some Doubt , the performance is great
On Jan 31, 11:54 am, Karl Swedberg <k...@englishrules.com> wrote:
Hi Pedram,
I agree with Nic. Especially if you're only dealing with 4 elements,
binding directly on them seems like the most sensible solution.
Are you noticing performance problems? You shouldn't be seeing any,
with scripts this basic. In any case, there are a couple selector
optimizations you could implement, if necessary. Something like
this:
var $navBarLinks = $('#your-nav-bar-id a');
$navBarLinks.click(function() {
$navBarLinks.removeClass('active');
$(this).addClass('active');
});
--Karl
____________
Karl Swedbergwww.englishrules.comwww.learningjquery.com
On Jan 31, 2009, at 2:36 PM, Pedram wrote:
I'm looking to improve the performance , which of these 2 codes
has
the best performance.
On Jan 30, 1:04 am, Nic Luciano <adaptive...@gmail.com> wrote:
What exactly are you trying to do, what is the issue? Maybe just
preference
here (and I'm also just guessing what you're asking) but I don't
see a
reason not to put the events on the elements themselves
$("ul li a").click(function() {
$
(this).parent().parent().find(".active").removeClass("active");
$(this).addClass("active");
});
On Fri, Jan 30, 2009 at 3:07 AM, Pedram <pedram...@gmail.com>
wrote:
Dear Karl ,
I know You are Expert in these Issues do you have any idea for me
Thanks
On Jan 29, 5:44 pm, Pedram <pedram...@gmail.com> wrote:
Hi Folks ,
I have some links in my Navigation bar such as below , I Used
FIND
in my code , does anyone has any better solution for me ,
I also used Event Delegation in the system .
<ul>
<li><a href="#" class="active>a</a></li>
<li><a href="#">b</a></li>
<li><a href="#">c</a></li>
<li><a href="#">d</a></li>
</ul>
$("ul").bind("click",function(e){
var clicked=$(e.target);
$(this).find("a.active").removeClass("active");
clicked.addClass("active");
});
