General combinators¶
These are general functions, which do not pertain to any domain in particular. They are typically used in combination with other functions.
id : a -> a
¶
The identity function, which simply returns whatever input it is given.
val a = id 14
// = 14
val b = id "some text"
// = "some text"
const : a -> b -> a
¶
const x
is a function which returns x
no matter what input it is given, i.e., the constant x
function.
val x = const 30 100
// = 30
val f = const 0
// = \_ -> 0