js 创建对象 变量方法

let person = {
    name: "Alice",
    age: 25,
    greet: function() {
        console.log(`Hello, my name is ${this.name}`);
    }
};

person.greet(); // 输出: Hello, my name is Alice

function Person(name, age) {
    this.name = name;
    this.age = age;
    this.greet = function() {
        console.log(`Hello, my name is ${this.name}`);
    };
}

let person1 = new Person("Bob", 30);
let person2 = new Person("Charlie", 35);

person1.greet(); // 输出: Hello, my name is Bob
person2.greet(); // 输出: Hello, my name is Charlie

function createPerson(name, age) {
    return {
        name,
        age,
        greet() {
            console.log(`Hello, my name is ${this.name}`);
        }
    };
}

let person = createPerson("David", 40);
person.greet(); // 输出: Hello, my name is David

class Person {
    constructor(name, age) {
        this.name = name;
        this.age = age;
    }

    greet() {
        console.log(`Hello, my name is ${this.name}`);
    }
}

let person = new Person("Eve", 28);
person.greet(); // 输出: Hello, my name is Eve

let proto = {
    greet() {
        console.log(`Hello, my name is ${this.name}`);
    }
};

let person = Object.create(proto);
person.name = "Frank";
person.age = 45;

person.greet(); // 输出: Hello, my name is Frank