Multiple Return Values

Snippet

Go functions can return multiple values. This is frequently used to return both a result and an error from a single function call.

snippet.go
go
func swap(a, b int) (int, int) {
    return b, a
}
 
func main() {
    first, second := swap(10, 20)
}

Breakdown

func swap(a, b int) (int, int)

Defines a function that takes two integers and returns two integers.

return b, a

Returns two values separated by a comma.

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