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 16import assert = require('assert'); 17import {start} from "repl"; 18 19interface Counter { 20 (start: number): string; 21 22 interval: number; 23 24 reset(): void; 25} 26 27function getCounter(): Counter { 28 const counter = <Counter>function (start: number) { }; 29 counter.interval = 10; 30 counter.reset = function ():void { 31 counter.interval = 30 32 }; 33 return counter; 34} 35 36let c = getCounter(); 37c(10); 38c.reset(); 39 40assert(c.interval === 30, 'success')