Re: Global variables and id lookup for elements from Garrett Smith on 2011-04-29 (public-webapps@w3.org from April to June 2011)

From: Garrett Smith <dhtmlkitchen@gmail.com>
Date: Thu, 28 Apr 2011 17:58:09 -0700
To: Boris Zbarsky <bzbarsky@mit.edu>
Cc: public-webapps@w3.org
Message-ID: <BANLkTikAtPP16M-WZxg0W7_rVy=T4h9pDg@mail.gmail.com>

On 4/28/11, Boris Zbarsky <bzbarsky@mit.edu> wrote:
> For what it's worth, the way Gecko implements this is by inserting an
> object into the prototype chain of the Window that handles these
> property gets.  This means that |var| (which defines a prop on the
> Window itself) will always shadow the named props, which is the behavior
> you observe.
>

That is correct. Because it is available in quirks mode only,
GlobalScopePolluter addresses legacy code designed to run in IE
without burdening other scripts with the problematic complexities it
causes.
-- 
Garrett

Received on Friday, 29 April 2011 00:58:37 UTC