js中Object.create实例用法详解

// father 对象
let father = {
    name: 'father',
    friend: ['abby', 'bob']
}
 
// 生成新实例对象 child1
let child1 = Object.create(father)
 
// 更改值类型属性
child1.name = '修改了name'
console.log(child1.name) //修改了name
 
// 更改引用类型值
child1.friend.push('chely')
console.log(child1.friend) //[ 'abby', 'bob', 'chely' ]
 
// 生成新实例对象 child2
let child2 = Object.create(father)
console.log(child2.name) //father
console.log(child2.friend) //[ 'abby', 'bob', 'chely' ]

const person = {
  isHuman: false,
  printIntroduction: function() {
    console.log(`My name is ${this.name}. Am I human? ${this.isHuman}`);
  }
};

const me = Object.create(person);

me.name = 'Matthew'; // "name" is a property set on "me", but not on "person"
me.isHuman = true; // inherited properties can be overwritten

me.printIntroduction();
// expected output: "My name is Matthew. Am I human? true"