Francesco, you missed a piece. 'head' is part of the expression. :) What
Carl is looking for is one or the other of these:
head $ tail [1,2,3]
-- or --
head . tail $ [1,2,3]
The first one is shorter and fine for inlining, but I generally prefer the
second form... it helps intuition about eta reduction, refactoring, and
additional composition.
On Aug 18, 2016 5:19 AM, "Francesco Ariis"
On Thu, Aug 18, 2016 at 05:03:21AM -0700, Carl Petersen wrote:
How do you rewrite head (tail [1,2,3]) without parenthesis.
Hello Carl, simply
λ> tail [1,2,3] [2,3]
will do! Haskell is not a Lisp, no need to wrap expressions around (). _______________________________________________ Haskell-Cafe mailing list To (un)subscribe, modify options or view archives go to: http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe Only members subscribed via the mailman list are allowed to post.