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'); 17 18let nums = [0, 1, 2, 3, 4, 5]; 19 20function loggingIdentity1<T>(arg: T[]): T[] { 21 return arg; 22} 23 24assert(loggingIdentity1(nums).length === 6, 'success'); 25 26assert(loggingIdentity1(nums).indexOf(1) === 1, 'success'); 27 28function loggingIdentity2<T>(arg: Array<T>): Array<T> { 29 console.log(arg.length); // Array has a .length, so no more error 30 return arg; 31} 32 33assert(loggingIdentity2(nums).length === 6, 'success');