Go Interfaces Type switch
Example
Type switches can also be used to get a variable that matches the type of the case:
func convint(v interface{}) (int,error) {
switch u := v.(type) {
case int:
return u, nil
case float64:
return int(u), nil
case string:
return strconv(u)
default:
return 0, errors.New("Unsupported type")
}
}
