# 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 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.