haskpy.typeclasses.foldable

Struture that can be squashed

Foldable	Foldable typeclass
fold_map(monoid, f, xs)	(Foldable t, Monoid m) => Monoid -> (a -> m) -> t a -> m
foldl(combine, initial, xs)	Foldable t => (b -> a -> b) -> b -> t a -> b
foldr(combine, initial, xs)	Foldable t => (a -> b -> b) -> b -> t a -> b
foldr_lazy(combine, initial, xs)	Foldable t => (a -> (() -> b) -> (() -> b)) -> b -> t a -> b
fold(monoid, xs)	(Foldable t, Monoid m) => Monoid -> t a -> m
length(xs)	Foldable t => t a -> int
sum(xs)	(Foldable t, Num a) => t a -> a
null(xs)	Foldable t => t a -> Bool
elem(e, xs)	(Foldable t, Eq a) => a -> t a -> Bool