1/* 2 * Copyright (c) 2023-2023 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 16function foo(i: number) { 17 this.count = i // Compile-time error only with noImplicitThis 18} 19 20class A { 21 count: number = 1 22 m = foo 23} 24 25let a = new A() 26console.log(a.count) // prints "1" 27a.m(2) 28console.log(a.count) // prints "2" 29 30class A1 { 31 count: number = 1 32 m(i: number): void { 33 this.count = i 34 } 35} 36 37function main(): void { 38 let a = new A1() 39 console.log(a.count) // prints "1" 40 a.m(2) 41 console.log(a.count) // prints "2" 42} 43