Re: [Haskell-beginners] \x -> x < 0.5 && x > -0.5

filter ((<=0.5) . abs) xs On Mon, Oct 19, 2009 at 10:49 AM, Michael Mossey <mpm@alumni.caltech.edu>wrote:

Is there a nifty way to write

filter (\x -> x < 0.5 && x > -0.5) xs

without explicitly using x?

Maybe arrows? I have a vague understanding that arrows can "send" an argument to more than one computation.

-Mike _______________________________________________ Beginners mailing list Beginners@haskell.org http://www.haskell.org/mailman/listinfo/beginners