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 16enum E { E1, E2 } 17 18let a = 10 + 32 // 42 19let b = E.E1 + 10 // 10 20let c = 10 + "5" // "105" 21 22let d = "5" + E.E2 // "51" 23let e = "Hello, " + "world!" // "Hello, world!" 24let f = "string" + true // "stringtrue" 25 26let g = (new Object()) + "string" // "[object Object]string" 27 28let i = true + true // JS: 2, TS: compile-time error 29let j = true + 2 // JS: 3, TS: compile-time error 30let k = E.E1 + true // JS: 1, TS: compile-time error