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/*--- 17desc: 05 Generics 18name: 05.generics/genericTypeArgumentWithDefaultParameterValue_07 19tags: [] 20---*/ 21 22 23class A<T=string> { 24 data: T 25 constructor(t : T) { 26 this.data = t; 27 } 28} 29 30function main(): void { 31 let a = new A("hello"); 32 let a1 = new A<string>("world") 33 assert a.data instanceof string 34 assert a1.data instanceof string 35} 36