1 0 2 abc 3 true 4 TypeError: undefined is not an Object 5 TypeError: null is not an Object 6 [object Number] 7 [object String] 8 [object Boolean] 9 [object Undefined] 10 [object Null] 11 0 12 abc 13 true 14 TypeError: undefined is not an Object 15 TypeError: null is not an Object