:: [t] -> Int package:numeric-prelude

length :: Foldable t => t a -> Int
numeric-prelude NumericPrelude NumericPrelude.Base
Returns the size/length of a finite structure as an Int. The default implementation is optimized for structures that are similar to cons-lists, because there is no general way to do better.
lengthLeft :: C n => [a] -> n
numeric-prelude NumericPrelude.List.Generic
Left associative length computation that is appropriate for types like Integer.
lengthRight :: C n => [a] -> n
numeric-prelude NumericPrelude.List.Generic
Right associative length computation that is appropriate for types like Peano number.
normFoldable :: (C a v, Foldable f) => f v -> a
numeric-prelude Algebra.NormedSpace.Maximum Algebra.NormedSpace.Sum
Default definition for norm that is based on Foldable class.
normFoldable1 :: (C a v, Foldable f, Functor f) => f v -> a
numeric-prelude Algebra.NormedSpace.Maximum Algebra.NormedSpace.Sum
Default definition for norm that is based on Foldable class and the argument vector has at least one component.