On Fri, Oct 12, 2012 at 12:14 PM, Erik Arvidsson <[email protected]> wrote: > On Fri, Oct 12, 2012 at 11:16 AM, David Bruant <[email protected]> wrote: >> 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. > > For keys, values and items I think they are cleaner as methods since > they return a new iterator every time. > > If they were properties, I would expect the following to always be true: > > map.items === map.items
Agreed, I expect things that look like properties to be stable. Factories should be methods. ~TJ _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
