Editing Variadic function (section)

===In Go===
Variadic functions in [[Go (programming language)|Go]] can be called with any number of trailing arguments.<ref>{{Cite web|url=https://gobyexample.com/variadic-functions|title=Go by Example: Variadic Functions}}</ref> {{code|fmt.Println}} is a common variadic function; it uses an empty interface as a catch-all type.

<syntaxhighlight lang="go">
package main

import "fmt"

// This variadic function takes an arbitrary number of ints as arguments.
func sum(nums ...int) {
	fmt.Print("The sum of ", nums) // Also a variadic function.
	total := 0
	for _, num := range nums {
		total += num
	}
	fmt.Println(" is", total) // Also a variadic function.
}

func main() {
	// Variadic functions can be called in the usual way with individual
	// arguments.
	sum(1, 2)  // "The sum of [1 2] is 3"
	sum(1, 2, 3) // "The sum of [1 2 3] is 6"

	// If you already have multiple args in a slice, apply them to a variadic
	// function using func(slice...) like this.
	nums := []int{1, 2, 3, 4}
	sum(nums...) // "The sum of [1 2 3 4] is 10"
}

</syntaxhighlight>

'''Output:'''

<pre>
The sum of [1 2] is 3 
The sum of [1 2 3] is 6 
The sum of [1 2 3 4] is 10
</pre>