js深拷贝

1.

// 深拷贝
function deepclone(obj){
let newobj=Array.isArray(obj)?[]:{}
for(let key in obj){
if(typeof obj[key]==='object'){
newobj[key]=deepclone(obj[key])
}else{
newobj[key]=obj[key]
}
}
return newobj
}

2.

let obj2=JSON.parse(JSON.stringify(obj1))