On Sep 7, 2009, at 1:08 PM, Gabriel Zachmann wrote:
It seems to me that Blocks in SL are exactly the same thing as "Closures" in Smalltalk -- is that correct?
Actually, Smalltalk calls them "blocks" too — that's where Obj-C, and Ruby, got the name from. (The Obj-C object model has always been very Smalltalk-inspired.) But yes, they're the same thing. They're also the same thing as function literals in JavaScript and lambdas in Python. It's been a very popular concept, going all the way back to 1960s' LISP.
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