duplicate argument error

[ghost]

I'm getting a 'duplicate argument name' with the below code

func location(name, city string) (name, continent string) {
    switch city {
    case "New York", "LA", "Chicago":
        continent = "North America"
    default:
        continent = "Unknown"
    }
    return
}

func main() {
    name, continent := location("Matt", "LA")
    fmt.Printf("%s lives in %s", name, continent)
}

go version go1.4.2 darwin/amd64

[jeanmatheussouto]

Hi @aidylewis

This error is because you use the same variable name to input and output func location(name, city string) (name, continent string). You should use different names, and your function should return two values not one.

An example:

func location(city string) (myCity, region, continent string) {
    myCity = city
    switch city {
    case "Los Angeles", "LA", "Santa Monica":
        region, continent = "California", "North America"
    case "New York", "NYC":
        region, continent = "New York", "North America"
    default:
        region, continent = "Unknown", "Unknown"
    }

    return
}

Make sense?