// Created on savesnippets.com · https://savesnippets.com/nQkwtaCLTefhMa
package main

import "fmt"

func sum(nums ...int) int {
    total := 0
    for _, n := range nums {
        total += n
    }
    return total
}

func greet(prefix string, names ...string) {
    for _, n := range names {
        fmt.Println(prefix, n)
    }
}

func main() {
    fmt.Println(sum())                       // 0
    fmt.Println(sum(1, 2, 3, 4, 5))          // 15

    // Spread a slice into variadic args
    nums := []int{10, 20, 30}
    fmt.Println(sum(nums...))                // 60

    greet("Hello,", "Alice", "Bob", "Cara")
    // Hello, Alice
    // Hello, Bob
    // Hello, Cara
}