Martin Drautzburg <martin.drautzb...@web.de> writes: > Hello all > > The standard map function applies a single function to a list of arguments. > But what if I want to apply a list of functions to a single argument. I can > of course write such a function, but I wonder if there is a standard way of > doing this,
> (map ($ 3) [(+2), (*4), (/3)])::[Double] [5.0,12.0,1.0] > Related to that is the problem, that the function in map may require more > than > one argument, so I need to apply it partially to some value(s) first. But > what if I want to fix its second and third argument and not its first > argument? Can flip help? The "pointfree" command-line tool can help you find good short forms for this kind of thing: $ pointfree '\x -> f x 2 3' flip (flip f 2) 3 In this case the explicit (pointed) lambda is simpler so I would usually just use that. G -- Gregory Collins <g...@gregorycollins.net> _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe