/Prelude-v23.0.0/NonEmpty/map.dhall
Copy path to clipboardTransform a NonEmpty
list by applying a function to each element
Examples
map Natural Bool Natural/even { head = 2, tail = [ 3, 5 ] }
≡ { head = True, tail = [ False, False ] }
map Natural Bool Natural/even { head = 2, tail = [] : List Natural }
≡ { head = True, tail = [] : List Bool }
Source
--| Transform a `NonEmpty` list by applying a function to each element
let NonEmpty =
missing sha256:e2e247455a858317e470e0e4affca8ac07f9f130570ece9cb7ac1f4ea3deb87f
? ./Type.dhall
let List/map =
missing sha256:dd845ffb4568d40327f2a817eb42d1c6138b929ca758d50bc33112ef3c885680
? ../List/map.dhall
let map
: ∀(a : Type) → ∀(b : Type) → (a → b) → NonEmpty a → NonEmpty b
= λ(a : Type) →
λ(b : Type) →
λ(f : a → b) →
λ(xs : NonEmpty a) →
{ head = f xs.head, tail = List/map a b f xs.tail }
let example0 =
assert
: map Natural Bool Natural/even { head = 2, tail = [ 3, 5 ] }
≡ { head = True, tail = [ False, False ] }
let example1 =
assert
: map Natural Bool Natural/even { head = 2, tail = [] : List Natural }
≡ { head = True, tail = [] : List Bool }
in map