Re: [Haskell-cafe] symbol $

Maverick,

Do you mind tell what is mean by the symbol $ in this piece of code? Thanks a lot.

It denotes function application: infixr 1 $ ($) :: (a -> b) -> a -> b f $ x = f x Note how its precedence and associativity is the opposite of that of 'regular' function application. The ($) is typically used to limit the number of parentheses needed in a piece of code: f (g (h x)) vs. f $ g $ h $ x There are other options though: (f . g . h) x f . g . h $ x HTH, Stefan