Good point. Note that you can easily do the same thing without copying, via prototypes: https://github.com/rauschma/proto-js
On Nov 13, 2011, at 3:21 , Rick Waldron wrote: > On Sat, Nov 12, 2011 at 7:08 PM, Brendan Eich <bren...@mozilla.com> wrote: > snip > > Let's argue about specifics or we'll get nowhere. Do you think Irakli's > selfish.js extend (https://github.com/Gozala/selfish/blob/master/selfish.js) > is the way to go, or Prototype's quite different form? > > Neither of them are fit for standardization. Selfish and Prototype are both > incapable of correctly "deep copying" arrays or objects, resulting in new > "instances" being able to modify values of the base object's properties if > those values are elements of an array or property values of an object - > because the array and object property themselves are references, not real > copies. > > PrototypeJS is painfully obvious, Selfish requires a demonstration. I > forked/cloned the repo and added a branch with a set of tests: > > The branch: https://github.com/rwldrn/selfish/tree/test > > The commit: > https://github.com/rwldrn/selfish/commit/ee55af5ec00074005fa74e9d9eb4be4dc4db5163 > > > An Object.extend() that creates an object full of references is certainly not > the way to go. > > Rick > > > > /be > _______________________________________________ > es-discuss mailing list > es-discuss@mozilla.org > https://mail.mozilla.org/listinfo/es-discuss > > _______________________________________________ > es-discuss mailing list > es-discuss@mozilla.org > https://mail.mozilla.org/listinfo/es-discuss -- Dr. Axel Rauschmayer a...@rauschma.de home: rauschma.de twitter: twitter.com/rauschma blog: 2ality.com
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