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 16export class StringUtil { 17 18 x: number; 19 y: number; 20 21 constructor() { 22 this.x = 25; 23 this.y = 97; 24 } 25 26 randomString(size: number): string { 27 let s = ''; 28 for (let i = 0; i < size; i++) { 29 s += String.fromCharCode((this.x * Math.random()) + this.y); 30 } 31 return s; 32 } 33 34} 35