Aaron Heimlich schrieb:
> On 12/12/06, *David Duymelinck* <[EMAIL PROTECTED]
> <mailto:[EMAIL PROTECTED]>> wrote:
>
> I thought div#myid was less generic than #myid so that the performance
> would improve using something like that. #myid could match a form, a div
> or some other tag you apply the id to.
>
>
> This might be true in CSS, but when jQuery sees something like "#myid",
> it turns that into document.getElementById("myid") which is very fast.
>
> I can't say for sure, but I think that if jQuery saw something like
> "div#myid", it would do document.getElementsByTagName("div") and then
> document.getElementById("myid")
I think it's even worse. It has to go through all the divs and check the
id...
document.getElementById cannot be used for such a list returned by
document.getElementsByTagName("div").
-- Klaus
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