Can functions be passed as parameters?

Question

In Java I can do something like

derp(new Runnable { public void run () { /* run this sometime later */ } })

and \"run\" the code in the me

Answer 1

Here is the sample "Map" implementation in Go. Hope this helps!!

func square(num int) int {
    return num * num
}

func mapper(f func(int) int, alist []int) []int {
    var a = make([]int, len(alist), len(alist))
    for index, val := range alist {

        a[index] = f(val)
    }
    return a
}

func main() {
    alist := []int{4, 5, 6, 7}
    result := mapper(square, alist)
    fmt.Println(result)

}