n Wednesday 07 October 2009 16:02:28 kangax wrote: > On Oct 7, 9:16 am, Jim Higson <j...@wikizzle.org> wrote: > > On Wednesday 07 October 2009 13:52:56 Jim Higson wrote: > > > Forked an untested implementation: > > > > > >http://gist.github.com/204008 > > > > Ah, just had a better idea and edited again. Does the same but without > > adding new Elements to the document and without requiring observable > > object instances to have any kind of always knowable global namespace. > > > > now:https://gist.github.com/204008/857971039083d293b036fdfd012f189d5cb566 > >2e > > Now imagine that every time you create an instance, not only is it > taking a perf. hit at run time by being augmented with 4 "observable" > methods, those methods are also unique for each instance; They aren't > shared off of instance's prototype.
True, but other than adding secret properties to this, this is the only way to store per-instance state from a mixin-like thing. In practise, the performance hit is unlikely to be significant/noticable and IMO the ability to use all of per-instance, per-class and per-everywhere state from a mixin is powerful enough to be worth (small) linear space per object. > That's 4N function objects, instead of what could have been - 4 > (although 4 comes with its own cost of course) :) -- Jim my wiki ajaxification thing: http://wikizzle.org my blog: http://jimhigson.blogspot.com/ --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Prototype: Core" group. To post to this group, send email to prototype-core@googlegroups.com To unsubscribe from this group, send email to prototype-core-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/prototype-core?hl=en -~----------~----~----~----~------~----~------~--~---
