I thought that Set wasn't going to even have insertion order as a "possible". The idea behind any Set (outside of ES even) is that it is just a collection of elements, unordered.
On Mon, Feb 13, 2012 at 19:32, Allen Wirfs-Brock <[email protected]> wrote: > > On Feb 12, 2012, at 4:52 PM, Peter Michaux wrote: > >> In the proposal, iterators for Set are listed as todo. If engine >> implementers have decided to start moving forward implementing Sets, >> then it would be great if they could get iteration going sooner than >> later. >> >> http://wiki.ecmascript.org/doku.php?id=harmony:simple_maps_and_sets > > Before getting too deep into iteration protocol for Sets (and Maps) there is > a more fundamental issues: Will Set define a standard, implementation > independent ordering of elements? If so, what is the basis for the ordering? > > Is it iteration order? Is so this will add likely add space overhead to the > internal representation of Set and Map and/or time overhead to > insert/delete operations. Also, for specializations of Set such as Integer > Sets insertion order may not be the most desirable iteration ordering. > > Allen > > > _______________________________________________ > es-discuss mailing list > [email protected] > https://mail.mozilla.org/listinfo/es-discuss -- Adam Shannon Developer University of Northern Iowa Sophomore -- Computer Science B.S. & Mathematics http://ashannon.us _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
