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A comment on JavaScript Isn't Scheme. Parent comment

Re:JavaScript Isn't Scheme by kragen on Saturday July 20, 2013 @02:07PM (#6075979)
A number of languages have listcomps that can do this, and which are actually more useful for this than CL's LOOP macro, but the thing I meant to point at was the APPENDING bit. I guess (loop for x in xs append (loop for y in (f x) collect y)) is awfully similar to [y for x in xs for y in f(x)], though.
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Re:JavaScript Isn't Scheme by cgag on Sunday July 21, 2013 @02:01AM (#6077996)
Including Clojure for those who might not know:

    (defn cross [xs ys]
      (for [x xs, y ys]
        [x y]))
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