1/*
2 * Copyright (c) 2024 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
16
17class Dog {
18    name: String;
19    legs: Int;
20}
21
22let dog: Dog = {
23    name: "Scooby"
24}
25
26let hasSting = dog?.hasSting;
27
28/* @@? 26:21 Error TypeError: Property 'hasSting' does not exist on type 'Dog'  */
29/* @@? 26:21 Error TypeError: Property 'hasSting' does not exist on type 'Dog'  */
30