Passing for loop values as function parameters

Question

It says: (no value) used as value, but I'm passing loop values from a slice to it!

package main

import "fmt"

func greet(n string) {
    fmt.Printf("Hi, %v\n", n)
}

func cycle(n []string, f func(string)) {
    for i := 0; i < len(n); i++ {
        fmt.Println(f(n[i]))
    }
}

func main() {
    cycle([]string{"John", "Marie"}, greet)
}

Code snippet on Go Playground

Answer 1

I found the solution: I should have called the function directly, not inside Println().

package main

import "fmt"

func greet(n string) {
    fmt.Printf("Hi, %v\n", n)
}

func cycle(n []string, f func(string)) {
    for i := 0; i < len(n); i++ {
        f(n[i])
    }
}

func main() {
    cycle([]string{"John", "Marie"}, greet)
}