package maps import "fmt" func Demo1() { my_dictionary := make(map[string]string) // key - value my_dictionary["table"]="Masa" my_dictionary["book"]="kitap" my_dictionary["pencil"]="Kalem" fmt.Println(my_dictionary["book"]) fmt.Println("String number : ", len(my_dictionary)) delete(my_dictionary, "book") fmt.Println("String number : ", len(my_dictionary)) }