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/** 17 * @Import { StringUtil } from '../../shared/libStringUtil.ts' 18 * @Import { dummy } from '../moreshared/libDummy.ts' 19 */ 20 21/** 22 * @State 23 * @Tags shared 24 */ 25class B1 { 26 27 /** 28 * @Param 128 29 */ 30 stringSize: number; 31 /** 32 * @Param 100 33 */ 34 loopCount: number; 35 startString: string = ''; 36 concatString: string = 'Ab'; 37 38 /** 39 * @Setup 40 */ 41 setup(): void { 42 let util = new StringUtil(); 43 this.startString = util.randomString(this.stringSize); 44 this.concatString = dummy(); 45 } 46 47 /** 48 * @Benchmark 49 * @Tags alsostrings, simple 50 */ 51 public test(): string { 52 let result: string = this.startString; 53 for (let i = 0; i < this.loopCount; i++) { 54 result = result.concat(this.concatString); 55 } 56 return result.substring(this.loopCount / 2, this.loopCount); 57 } 58 59} 60