Multiple Return Values

We can define a function with multiple return values in GO as in below

func divide(p1, p2 float64) (float64, error) {

This means our program will always return two values regardless of the outcome, either a float64 value and a nil error if things go well or a NaN value and a error value.

We get both values in different variables when we call the function

answer, err := divide(6, 2)

If we get an error, we handle like so:

if err != nil {
    fmt.Printf("An error occured %s\n", err.Error())
    return
}

Or we print our result if things go well

fmt.Printf("%f\n", answer)