# gleam/function

# Functions

`pub fn compose(fun1: fn(a) -> b, fun2: fn(b) -> c) -> fn(a) -> c`

Takes two functions and chains them together to form one function that takes the input from the first and returns the output of the second.

`pub fn constant(value: a) -> fn(b) -> a`

A function that takes a single argument and returns a new function that ignores its argument and always returns the input value.

`pub fn curry2(fun: fn(a, b) -> c) -> fn(a) -> fn(b) -> c`

Takes a function with arity two
and returns a curried equivalent.
`fn(a, b) -> c`

becomes `fn(a) -> fn(b) -> c`

.

```
pub fn curry3(fun: fn(a, b, c) -> d) -> fn(a) ->
fn(b) -> fn(c) -> d
```

Takes a function with arity three
and returns a curried equivalent.
`fn(a, b, c) -> d`

becomes `fn(a) -> fn(b) -> fn(c) -> d`

.

```
pub fn curry4(fun: fn(a, b, c, d) -> e) -> fn(a) ->
fn(b) -> fn(c) -> fn(d) -> e
```

Takes a function with arity four and returns a curried equivalent.

```
pub fn curry5(fun: fn(a, b, c, d, e) -> f) -> fn(a) ->
fn(b) -> fn(c) -> fn(d) -> fn(e) -> f
```

Takes a function with arity five and returns a curried equivalent.

```
pub fn curry6(fun: fn(a, b, c, d, e, f) -> g) -> fn(a) ->
fn(b) -> fn(c) -> fn(d) -> fn(e) -> fn(f) -> g
```

Takes a function with arity six and returns a curried equivalent.

`pub fn flip(fun: fn(a, b) -> c) -> fn(b, a) -> c`

Takes a function that takes two arguments and returns a new function that takes the same two arguments, but in reverse order.