Alternative for function overloading in Go?

Question

Is it possible to work similar way like the function overloading or optional parameter in C# using Golang? Or maybe an alternative way?

Answer 1

There are some hints here using variadic arguments, for example:

sm1 := Sum(1, 2, 3, 4) // = 1 + 2 + 3 + 4 = 10
sm2 := Sum(1, 2) // = 1 + 2 = 3
sm3 := Sum(7, 1, -2, 0, 18) // = 7 + 1 + -2 + 0 + 18 = 24
sm4 := Sum() // = 0

func Sum(numbers ...int) int {    
    n := 0    
    for _,number := range numbers {
        n += number
    }    
    return n
}

Or ...interface{} for any types:

Ul("apple", 7.2, "BANANA", 5, "cHeRy")

func Ul(things ...interface{}) {
  fmt.Println("
")    
  for _,it := range things {
    fmt.Printf("    
%v
\n", it)
  }    
  fmt.Println("
")
}