Map/Set.prototype.size

Alex Russell slightlyoff at google.com
Fri Oct 12 08:28:20 PDT 2012


+1


On Fri, Oct 12, 2012 at 4:19 PM, Erik Arvidsson <erik.arvidsson at gmail.com>wrote:

> +1
>
> On Fri, Oct 12, 2012 at 11:16 AM, David Bruant <bruant.d at gmail.com> wrote:
> > Hi,
> >
> > Firefox has implement a Map/Set.prototype.size *method* to query the
> number
> > of mapping/elements.
> > It's not in the strawman. It appears in the latest draft, though weirdly
> > enough Map.prototype.size is a function with an unused argument.
> > What about making it an getter instead of a function? I guess we also
> don't
> > need the extra parens to request for Map#keys, Map#values, Map#items.
> >
> > Unlike Java, JavaScript is lucky enough to have getter/setters, we should
> > use them, even in the spec. The boat for myArray.length has sunk a while
> > ago, but new constructs can get this right.
> >
> > David
> >
> > _______________________________________________
> > es-discuss mailing list
> > es-discuss at mozilla.org
> > https://mail.mozilla.org/listinfo/es-discuss
> >
>
>
>
> --
> erik
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>
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