1/*
2 * Copyright (c) 2023 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16var a1 = new Array(3);
17for (let i = 0; i < 3; i++) {
18    print(i in a1);
19}
20a1.shift()
21for (let i = 0; i < 3; i++) {
22    print(i in a1);
23}
24
25var arr1 = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
26var arr2 = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
27
28var result1 = arr1.shift();
29print(result1);
30arr2.constructor = function () {
31    return 88;
32}
33var result2 = arr2.shift();
34print(result2);
35