Portability  portable 

Stability  experimental 
Maintainer  libraries@haskell.org 
The constant functor.
 newtype Constant a b = Constant {
 getConstant :: a
Documentation
Constant functor.
Constant  

Functor (Constant a)  
Monoid a => Applicative (Constant a)  
Foldable (Constant a)  
Traversable (Constant a) 