dictionary_iterating.swift

var users: [String: User] = [:]
users["admin"] = user
users["guest"] = User(name: "Antonio Guest")

for item in users {
    print("item: \(item)")
    print("key: \(item.key)")
    print("value: \(item.value)")
    /*
     item: (key: "admin", value: __lldb_expr_67.User(name: "Medium Guest"))
     key: admin
     value: User(name: "Medium Guest")
     
     item: (key: "guest", value: __lldb_expr_67.User(name: "Antonio Guest"))
     key: guest
     value: User(name: "Antonio Guest")
     */
}

for key in users.keys {
    print("key: \(key)")
    /*
     key: admin
     key: guest
     */
}

for value in users.values {
    print("value: \(value)")
    /*
     value: User(name: "Medium Guest")
     value: User(name: "Antonio Guest")
     */
}