package string_functions //alias import ( "fmt" s "strings" ) // case sensitive // ascii func Demo1() { name := "Engin" fmt.Println(s.Count(name, "g")) fmt.Println(s.Contains(name, "g")) fmt.Println(s.Index(name, "g")) result := s.Index(name, "E") if result != -1{ fmt.Println("E letter exists") }else{ fmt.Println("E letter does not exist") } fmt.Println(s.ToLower(name)) fmt.Println(s.ToUpper(name)) }