On Mon, Oct 22, 2012 at 11:32 AM, Domenic Denicola < dome...@domenicdenicola.com> wrote:
> On Oct 22, 2012, at 14:28, "Yehuda Katz" <wyc...@gmail.com> wrote: > > On Mon, Oct 22, 2012 at 11:11 AM, Axel Rauschmayer <a...@rauschma.de>wrote: > >> What about copying of these new data structures? >> >> >> It should be possible to initialize a collection via another collection >> (right?). I prefer copy-constructors to clone() methods. >> > > That would be fine with me, if supported. > > > > Isn't it already specced to work, for Set at least, since it accepts any > iterable? > > let copy = new Set(original); > > I don't recall offhand if Map accepts an iterable of [key, val] pairs, > but if it doesn't yet, maybe this provides an argument that it should. > Sounds good. Hopefully VMs can optimize the implementation when a Map/Set is passed in. -- Yehuda Katz (ph) 718.877.1325
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