Control.Lens.Combinators

Documentation

(<$!>) :: Monad m => (a -> b) -> m a -> m b

A strict version of (<$>) for monads.

>>> (+1) <$!> [1,2,3,4]
[2,3,4,5]

(<$!) :: Monad m => b -> m a -> m b

A strict version of (<$) for monads.

>>> () <$! [1,2,3,4]
[(),(),(),()]

(<&>) :: Functor f => f a -> (a -> b) -> f b

Infix flipped fmap.

(<&>) = flip fmap