Safe Haskell | Safe-Inferred |
---|---|
Language | Haskell2010 |
Synopsis
- (?*>) :: Alternative f => Bool -> f a -> f a
- (?$>) :: Alternative f => Bool -> a -> f a
- foldA :: (Alternative f, Foldable t) => t a -> f a
- foldMapA :: (Alternative f, Foldable t) => (a -> f b) -> t a -> f b
- forA :: (Traversable t, Applicative f) => t a -> (a -> f b) -> f (t b)
Documentation
(?*>) :: Alternative f => Bool -> f a -> f a Source #
Guard: return the action f
only if the boolean is True
(?$>) :: Alternative f => Bool -> a -> f a Source #
Guard: return the value a
only if the boolean is True
foldA :: (Alternative f, Foldable t) => t a -> f a Source #
Branch over a Foldable
collection of values.
foldMapA :: (Alternative f, Foldable t) => (a -> f b) -> t a -> f b Source #
Branch over a Foldable
collection of values using the supplied
action.
forA :: (Traversable t, Applicative f) => t a -> (a -> f b) -> f (t b) Source #
Better name for for
.