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Re:Comparing JavaScript, CoffeeScript & ClojureScript by grayrest on Thursday January 26, 2012 @03:23PM (#3515809)
> neither JavaScript nor CoffeeScript provide any kind of doesNotUnderstand: hook

Feature is Proxies, it's in Harmony. I know v8 has an implementation, having used it in node (takes a command line flag) but not sure what the status is elsewhere.

Re:Comparing JavaScript, CoffeeScript & ClojureScript by dangoor on Thursday January 26, 2012 @09:20PM (#3516921)
Firefox has been shipping Proxy since Firefox 4 and uses it a great deal internally.

Proxies are an awesome feature!

Re:Comparing JavaScript, CoffeeScript & ClojureScript by nickik on Friday January 27, 2012 @02:34AM (#3517469)
Its like it always was with lisp, you don't have to wait for the language designers.