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Re: Parent Combinator / Parent pseudo-class

From: Brad Kemper <brkemper@comcast.net>
Date: Wed, 23 Jul 2008 09:43:08 -0700
Cc: "Tab Atkins Jr." <jackalmage@gmail.com>, www-style list <www-style@w3.org>
Message-Id: <91C04C8C-6E02-4C60-A756-34D3111B46E7@comcast.net>
To: Boris Zbarsky <bzbarsky@MIT.EDU>


On Jul 23, 2008, at 9:21 AM, Boris Zbarsky wrote:

>> The use-cases have already been noted, and are relatively significant
>
> I don't think anyone is debating it.  What UA implementors are  
> saying is that they haven't thought of a good way to implement it  
> yet without crippling performance of DOM mutation, and they aren't  
> willing to cripple that.
>
> -Boris

Can you post a test case, using JavaScript to simulate this, to show  
how slow? Where one element with a child is thus selected? Computers  
are pretty fast these days, and I have doubts about how crippling slow  
it would be if used sparingly at the author's discretion. 
  
Received on Wednesday, 23 July 2008 16:43:50 GMT

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