js如何申明对象

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

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

let person2 = Object.create(protoPerson);
person2.name = "Charlie";
person2.age = 28;
person2.greet(); // 输出: Hello, my name is Charlie

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

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

let person3 = new Person("Diana", 22);
person3.greet(); // 输出: Hello, my name is Diana

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

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

let person1 = new Person("Bob", 30);
let person2 = new Person("Charlie", 28);

console.log(person1.greet === person2.greet); // 输出: true