如何在JavaScript中部分应用成员函数？

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

Person.prototype.sayHello = function() {
  console.log(`Hello, my name is ${this.name} and I am ${this.age} years old.`);
}

const person1 = new Person('Alice', 25);
const person2 = new Person('Bob', 30);

person1.sayHello(); // Hello, my name is Alice and I am 25 years old.
person2.sayHello(); // Hello, my name is Bob and I am 30 years old.

// 使用call方法调用person1的sayHello方法，但将person2作为上下文
person1.sayHello.call(person2); // Hello, my name is Bob and I am 30 years old.

// 使用apply方法调用person1的sayHello方法，但将person2作为上下文
person1.sayHello.apply(person2); // Hello, my name is Bob and I am 30 years old.

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

Person.prototype.sayHello = function() {
  console.log(`Hello, my name is ${this.name} and I am ${this.age} years old.`);
}

const person1 = new Person('Alice', 25);
const person2 = new Person('Bob', 30);

// 使用箭头函数将person1的sayHello方法部分应用到person2上
person2.sayHello = () => person1.sayHello();

person1.sayHello(); // Hello, my name is Alice and I am 25 years old.
person2.sayHello(); // Hello, my name is Alice and I am 25 years old.