js递归简易深拷贝

合集 - js面试(7)

1.js数组对象转树结构2023-06-042.promise.all any race简易实现2023-06-073.js数组去重2023-07-174.for of遍历普通对象2023-07-17

5.js递归简易深拷贝2023-06-19

6.js数组扁平化2023-06-197.async await2023-07-17

收起

let obj={
    a:1,
    b:{
        b1:1,
        b2:2
    },
    c:[1,2,3]
}
function deepClone(obj){
    let result=Array.isArray(obj)?[]:{}
    for(let key in obj){
        if(obj.hasOwnProperty(key)){
            if(obj[key]&&typeof obj[key]=='object'){
                result[key]=deepClone(obj[key])
            }else{
                result[key]=obj[key]
            }
        }
    }
    return result
}
let objClone=deepClone(obj)
objClone.b.b1='b1'
objClone.c=[4,5,6]
console.log("obj:",obj);
console.log("objClone:",objClone);