Skip to main content

identity()

identity<A>(x): A

Mathematic identity function. A function that always returns the value that was used as its argument, unchanged.

Type Parameters​

• A

The type of the input value.

Parameters​

x​

A

The value to return.

Returns​

A

Remarks​

I combinator

λa.a

identity :: a → a

pure function

Example​

identity(4);
// 4