[whatwg] WebIDL vs HTML5 storage changes
giecrilj at stegny.2a.pl
Tue May 20 11:35:48 PDT 2008
Opacity of style is not quite the same thing because you compare a
predefined property to an expando property. Predefined properties should
not be deleted, deleting expando properties should be supported.
From: whatwg-bounces at lists.whatwg.org
[mailto:whatwg-bounces at lists.whatwg.org] On Behalf Of Maciej Stachowiak
Sent: Tuesday, May 20, 2008 5:50 AM
To: robert at ocallahan.org
Cc: Brady Eidson; WHATWG Mailing List
Subject: Re: [whatwg] WebIDL vs HTML5 storage changes
On May 19, 2008, at 4:54 PM, Robert O'Callahan wrote:
> If "storage.keyName = 'value';" can create a new storage item
> (persistently), won't authors expect "delete storage.keyName;" to
> remove it (persistently), as a matter of consistency?
> If overloading "delete" is too quirky or too hard to implement, then
> it seems none of the other shorthands should be allowed either.
Many objects in the DOM implement custom name getters (for instance
NodeList) and a few even implement custom name setters
(CSSStyleDeclaration, at least the way it is done in WebKit) but no
one has clamored for a custom deleter or expected delete to work "as a
matter of consistency" or been confused that "style.opacity = 0" is
allowed but "delete style.opacity" is not. So I would say the
available evidence argues against your conclusions.
More information about the whatwg