On Jul 19, 2011, at 11:39 AM, Allen Wirfs-Brock wrote:

> Ok,  I did a side-by-side comparisons of some alternatives.  
> Seehttp://wiki.ecmascript.org/lib/exe/fetch.php?id=harmony%3Aspecification_drafts&cache=cache&media=harmony:protooperator_alternatives.pdf
> The first column is by prototypal inheritance example using<| and <& from the 
> first message in this thread.
> The second column is the same example with <| and <& replaced by keyword 
> operators "prototypes" and "extendBy".

Nit-pick here, but: No! Never camelCaps in keywords. Consider instanceof.

Please try another word, perhaps "copies".

> The third column uses Object.specialize and Object.extend calls instead of <| 
> and <&.
> Note that Object.create can't be used instead of Object.specialize because I 
> want the second argument to be a regular object literal rather than a 
> property descriptor.

"specialize" is ambiguous with respect to copying vs. delegating. How about 
Object.delegate(to, from)? Or Object.clone, a Self homage?

It's hard to love the keyword forms, and many clearly choke on the punctuator 
stew. That plus the "usable from downrev scripts" lends weight to 

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