Re: [selectors api] Why two methods?

On 1/28/07, Anne van Kesteren <annevk@opera.com> wrote:
> On Sat, 27 Jan 2007 18:03:35 -0500, Martijn <martijn.martijn@gmail.com>
> wrote:
> > I don't see any difference:.
> > document.getElementBySelector("html > p")
> > is the same as document.getElementListBySelector("html > p")[0]
> >
> > document.getElementBySelector("html > p:not(:first-child)")
> > is the same as document.getElementListBySelector("html >
> > p:not(:first-child)")[0]
> >
> > document.getElementBySelector("html > p:last-child")
> > is the same as document.getElementListBySelector("html >
> > p:last-child")[0]
> >
> > as far as I can see.
>
> Given that the latter returns a StaticNodeList you can't do fancy stuff
> such as lazy evaluation. So they become different in terms of speed.

Well, typically the first thing I do is using a variable, like:
var x=document.getElementListBySelector("html > p")[0];

Regards,
Martijn