对象里的对象在栈和堆的储存

来源：2-3 新的声明方式const

慕莱坞9430059

2020-12-28

老师，为什么会出现下面两种情况，对象里面的对象的属性值修改后会影响前面的输出？
对象里面的对象，在栈和堆上具体是怎么储存的呢？

let obj = {
    name: 'LiMing',
    age: '30',
    skill: {
        name: 'code'
    }
};

console.log(obj);
// {name: "LiMing", age: "30", skill: {…}}
obj.age = '31';
console.log(obj);
// {name: "LiMing", age: "31", skill: {…}}

let obj = {
    name: 'LiMing',
    age: '30',
    skill: {
        name: 'code',
        year: 1
    }
};

console.log(obj);
//{name: "LiMing", age: "30", skill: {name: "code", year: 2}}
obj.skill.year = 2;
console.log(obj);
//{name: "LiMing", age: "30", skill: {name: "code", year: 2}}