package main

import "fmt"

type cat struct {
  name string
}

func typeExample(i []interface{}) {

  for _, x := range i {
    switch v := x.(type) {
    case int:
      fmt.Printf("%v is an int\n", v)
    case string:
      fmt.Printf("%v is a string\n", v)
    case bool:
      fmt.Printf("%v is a boolean\n", v)
    default:
      fmt.Printf("Unknown type %T\n", v)
    }
  }
}

func main() {

  c := cat{"oreo"}
  i := []interface{}{42, "The book club", true, c}
  typeExample(i)

}