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So I was playing with the Tcl shell a bit...

 
Michael Ernest
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and I happened to notice that a lot of default Ruby/Groovy behavior seems to match what I am getting with all my Tcl horseplay.

Watching the presentation on Java FX Script, a colleague of mine noted the strong resemblance to Haskell in the Java FX feature set.

Makes me wonder: are all these scripting tools leveraging lambda-style programming concepts from years ago? It seems glaringly obvious when I look at them, but not being particularly deep in Groovy, Ruby, JavaScript or the like right now, I'd be interested in any wizened observations I can get.
 
Marc Peabody
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I think I've heard before that "closures" in Groovy are really lambdas.
 
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