- From: Brian Kardell <bkardell@gmail.com>
- Date: Fri, 13 Mar 2015 15:57:00 -0400
- To: Zach Saucier <zachsaucier@gmail.com>
- Cc: "www-style@w3.org" <www-style@w3.org>
On Fri, Mar 13, 2015 at 3:07 PM, Zach Saucier <zachsaucier@gmail.com> wrote: > The CSS Selector 4 doc specifies :has() as the only selector to not be a > part of the fast profile. Currently, at what threshold is this determined > and how is this tested? Zach, see https://lists.w3.org/Archives/Public/www-style/2015Mar/0066.html for a discussion on this, specifically david's " dbaron: What makes the selector slow is what needs to be done to handle a dynamic change. If you do a DOM mutation here, where do you need to reevaluate and can you reasonably track that. " The minutes are much shorter than what he said which I think was spot on and someone (david or boris z would be my pref) should do a post on this as I think it will inevitably keep coming up. -- Brian Kardell :: @briankardell :: hitchjs.com
Received on Friday, 13 March 2015 19:57:26 UTC