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// FunctionDeclaration
17export function greet(name: string): string {
18  return `Hello, ${name}`;
19}
20
21// MethodDeclaration inside a class
22class Person {
23  private _age: number;
24  // Constructor
25  constructor(public name: string, age: number) {
26    this._age = age;
27  }
28  // MethodDeclaration
29  greet(): string {
30    return `Hi, my name is ${this.name}`;
31  }
32  // GetAccessor
33  get age(): number {
34    return this._age;
35  }
36  // SetAccessor
37  set age(age: number) {
38    if (age > 0) {
39      this._age = age;
40    }
41  }
42}
43
44// FunctionExpression assigned to a variable
45export const add = function(x: number, y: number): number {
46    return x + y;
47};
48
49// ArrowFunction assigned to a variable
50const multiply = (x: number, y: number): number => x * y;
51
52// Instance of class Person
53const person = new Person("John Doe", 30);