Object.assign 可以把 n 个源对象拷贝到目标对象中去,如下
let m ={name: {asd: '123'}}
let n = Object.assign({}, m)
console.log(n)
运行结果
{name: {asd: '123'}}
那到底是深拷贝还是浅拷贝呢,答案是第一级属性深拷贝,以后级别属性浅拷贝 。大家看下面两段代码
let s ={name: {asd: '123'}}
let d = Object.assign({}, s)
d.name.asd = '123456789'
console.log(d, s)