13af6ab5fSopenharmony_ci/*
23af6ab5fSopenharmony_ci * Copyright (c) 2024 Huawei Device Co., Ltd.
33af6ab5fSopenharmony_ci * Licensed under the Apache License, Version 2.0 (the "License");
43af6ab5fSopenharmony_ci * you may not use this file except in compliance with the License.
53af6ab5fSopenharmony_ci * You may obtain a copy of the License at
63af6ab5fSopenharmony_ci *
73af6ab5fSopenharmony_ci * http://www.apache.org/licenses/LICENSE-2.0
83af6ab5fSopenharmony_ci *
93af6ab5fSopenharmony_ci * Unless required by applicable law or agreed to in writing, software
103af6ab5fSopenharmony_ci * distributed under the License is distributed on an "AS IS" BASIS,
113af6ab5fSopenharmony_ci * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
123af6ab5fSopenharmony_ci * See the License for the specific language governing permissions and
133af6ab5fSopenharmony_ci * limitations under the License.
143af6ab5fSopenharmony_ci */
153af6ab5fSopenharmony_ci
163af6ab5fSopenharmony_ci
173af6ab5fSopenharmony_ci(1 ?? 2) == 1;
183af6ab5fSopenharmony_ci(0 ?? 2) == 0;
193af6ab5fSopenharmony_cinull ?? 2 == 2;
203af6ab5fSopenharmony_cinull ?? undefined == undefined;
213af6ab5fSopenharmony_cinull ?? undefined ?? 2 == 2;
223af6ab5fSopenharmony_cinull ?? undefined ?? null ?? 10 == 10;
233af6ab5fSopenharmony_cinull ?? (undefined || null) ?? 10 == 10;
243af6ab5fSopenharmony_cinull ?? (undefined && null) ?? 10 == 10;
253af6ab5fSopenharmony_ci(null ?? true) && (true ?? null) == true
263af6ab5fSopenharmony_ci5 + 3 ?? 5 * 8;