On Oct 2, 2010, at 10:45 AM, Alex Russell wrote: > On Oct 2, 2010, at 6:49 AM, Jorge wrote: > >> On 02/10/2010, at 15:29, Brendan Eich wrote: >>> On Sep 6, 2010, at 1:43 AM, Dmitry A. Soshnikov wrote: >>> >>>> For what to create a proxy? It's only for catch-traps (yes, it may be used >>>> additionally to create a _catcher_ with "Array" [[Class]], but without >>>> additions -- i.e. if a user wants just to inherit from Array.prototype and >>>> to have all arrays' stuff -- proxies are not needed to him). >>> >>> Proxies are required to update length to be one greater than index >>> (property name-string P such that ToString(ToUint32(P)) == P and >>> ToUint32(P) is not 2^32 - 1) when setting an indexed property. Array's >>> magic [[Put]] is not inherited. >> >> Why not simply spec an Array.create() ? > > Or why not simply expose the [[Get]] and [[Set]] protocol for Array
Sorry, I meant [[Put]]. > so that it can be implemented directly by sub-classers? Having it hidden away > in some primitive property of Array is what makes prototypal extension for > Arrays insufficient in the first place, right? > > Regards > >> -no need to redefine what an array is. >> -no need to learn new concepts ( we're used to Object.create() already ) >> -easy to grasp, expected behaviour. >> -it's a 3-liner that would take no more than 3 minutes to implement in JS in >> any current UA. >> -it would just need to be in the ES specs. >> -- >> Jorge. >> _______________________________________________ >> es-discuss mailing list >> es-discuss@mozilla.org >> https://mail.mozilla.org/listinfo/es-discuss > > -- > Alex Russell > slightly...@google.com > slightly...@chromium.org > a...@dojotoolkit.org BE03 E88D EABB 2116 CC49 8259 CF78 E242 59C3 9723 > > _______________________________________________ > es-discuss mailing list > es-discuss@mozilla.org > https://mail.mozilla.org/listinfo/es-discuss -- Alex Russell slightly...@google.com slightly...@chromium.org a...@dojotoolkit.org BE03 E88D EABB 2116 CC49 8259 CF78 E242 59C3 9723 _______________________________________________ es-discuss mailing list es-discuss@mozilla.org https://mail.mozilla.org/listinfo/es-discuss
