To shorten:
a.class > .class
#id > a#id
On 12/15/06, Erik Beeson <[EMAIL PROTECTED]> wrote:
> I was avoiding using just $(".newWindow"), or $("#newWindow"), because
then jQuery has to search the whole document for that class or ID. Whereas
if I use $("a.newWindow") or $("a#newWindow"), it's faster because jQuery
then only examines the A tags, and nothing else. Am I right in thinking
that. I'm pretty sure I read something to that affect on this list, as some
point.
>
Half right, $(".newWindow") selects all tags and searches their
classes for "newWindow". $("a.newWindow") selects all "a" tags and
searches their classes for "newWindow". Fewer tags to search so the
a.newWindow version is faster. In the case of $("#newWindow"), jQuery
uses the browser's native document.getElementById function to go
straight to the correct element. $("a#newWindow") selects all "a"
tags, then searches them for the one who's id is "newWindow", so it's
actually slower than $("#newWindow").
But in your case, you're probably going to have more than one
"newWindow", so you want a class.
> So I'll use $("a.newWindow").click(... as my selector. Does that sound
about right? Is it the best approach?
Yes.
--Erik
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