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 */
15declare function print(arg:any, arg1?:any):string;
16
17let str:string = '1234567890上下左右中';
18
19// two const
20print('123' == '123');
21print(str == '1234567890上下左右中');
22print('1' == '1')
23print(str[0] == '12')
24
25// one const
26let ans = 0;
27for (let i = 0; i<15; ++i) {
28  let m:string = str[i];
29  if (m == '1' || m == '上' || m == '国') {
30    ans += 1;
31  }
32}
33print(ans);
34
35// no const
36function foo(flag) {
37  let str = '12';
38  if (flag) {
39    return str[0];
40  } else {
41    return str[1];
42  }
43}
44let left:string = foo(true);
45let right1:string = foo(true);
46let right2:string = foo(false);
47print(left == right1);
48print(left == right2);
49