Functions

Kaiper has functions, which are invocable objects.

Named and anonymous functions with bodies:

def [name](parameters...) = expression

def [name](parameters...) {
    statements
}

Implicit and lambda functions:

def { parameters... -> statements }

def _ + _

Examples:

def add(x, y) = x + y

def fib(x) {
    if x <= 1 {
        return x
    }
    return fib(x - 1) + fib(x - 2)
}

They are first class objects, which means they can be passed as parameters to other functions.

[1,2,3,4,5] |> Array.reduce 0, add