Re: [whatwg] Proposal: Adding methods like getElementById and getElementsByTagName to DocumentFragments from Boris Zbarsky on 2013-07-25 (public-whatwg-archive@w3.org from July 2013)

From: Boris Zbarsky <bzbarsky@MIT.EDU>
Date: Thu, 25 Jul 2013 09:05:41 -0700
To: whatwg@lists.whatwg.org
Message-ID: <51F14CD5.1040001@mit.edu>

On 7/24/13 10:42 PM, Jussi Kalliokoski wrote:
> Argh, I had forgotten about live NodeLists. OK, this is a reason that
> resonates with me and justifies calling these methods obsolete. Too bad
> these methods are so badly flawed

Fwiw, I think the performance impact of live NodeLists is ... unclear. 
Their existence does mean that you have to deal with DOM mutations 
changing the lists, but them being live also means you can make the list 
getters much faster in cases when the caller doesn't actually want the 
entire list.

-Boris

Received on Thursday, 25 July 2013 16:06:10 UTC