Go by Example: Multiple Return Values

Go has built-in support for multiple return values. This feature is used often in idiomatic Go, for example to return both result and error values from a function.
	package main
	import "fmt"
The `(int, int)` in this function signature shows that the function returns 2 `int`s.	func vals() (int, int) { return 3, 7 }
	func main() {
Here we use the 2 different return values from the call with multiple assignment.	a, b := vals() fmt.Println(a) fmt.Println(b)
If you only want a subset of the returned values, use the blank identifier `_`.	_, c := vals() fmt.Println(c) }

	$ go run multiple-return-values.go 3 7 7
Accepting a variable number of arguments is another nice feature of Go functions; we’ll look at this next.