...

Solution Review: Filter Even and Odd Numbers

This lesson discusses the solution to the challenge given in the previous lesson.

We'll cover the following...

Go (1.6.2)

package main
import "fmt"
type flt func(int) bool // aliasing type
func isEven(n int) bool { // check if n is even or not
    if n % 2 == 0 {
        return true
    }
    return false
}
func filter(sl[] int, f flt)(yes, no[] int) { // split s into two slices: even and odd
    for _, val := range sl {
        if f(val) {
            yes = append(yes, val)
        } else {
            no = append(no, val)
        }
    }
    return
}
func main() {
    slice := [] int {1, 2, 3, 4, 5, 7}
    fmt.Println("slice = ", slice)
    even,odd := filter(slice, isEven)
    fmt.Println("The even elements of slice are: ", even)
    fmt.Println("The odd elements of slice are: ", odd)
}