- From: Tab Atkins Jr. <jackalmage@gmail.com>
- Date: Mon, 10 Jun 2013 07:53:59 -0700
- To: Boris Zbarsky <bzbarsky@mit.edu>
- Cc: public-webapps <public-webapps@w3.org>
On Sun, Jun 9, 2013 at 6:18 PM, Boris Zbarsky <bzbarsky@mit.edu> wrote:
> On 6/9/13 7:35 PM, Timmy Willison wrote:
>> I was a little confused. I realized something I already knew in that
>> elem.querySelector[All] does limit the matched set to the descendants of
>> element
>
> Right. But find() does not, for what it's worth, depending on the exact
> selector used. It can return sublings of the context object, for example,
> as far as I can tell. Hence the wording difference.
Specifically, "el.find('+ div');" will work, and find the sibling
<div> to the context element. "el.querySelector(':scope + div');"
will *not* work, because the results are first filtered to be only
descendants of the context element.
The wording is slightly confusing now, but in Selectors 4 terminology,
selectors in find() are *relative*, but not *scoped*. Selectors in
qSA() are scope-filtered. (They may also be relative - it's been a
while since I read the spec, so I don't remember.)
~TJ
Received on Monday, 10 June 2013 14:54:46 UTC