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 */ 15 16declare function print(arg:any):string; 17 18class Animal { 19 public name: string = "Animal"; 20 public age: number; 21 22 sayHello() { 23 24 } 25} 26 27class Dog extends Animal { 28 age: number; 29 30 constructor(age) { 31 super(); 32 this.age = age; 33 } 34} 35 36const dog = new Dog(6); 37 38var start = new Date().getTime(); 39for (let i = 0; i < 1000000000; i++) { 40 dog.sayHello(); 41 var age = dog.age; 42 var s = dog.name; 43} 44var time = new Date().getTime() - start; 45print(time); 46