let obj = {
    name:'azirkxs'
};
let arr = [{name:'azirkxs'},'haha',22]
function shallowCopy(obj){
    //判断是否是一个对象
    if(typeof obj !== 'object') return;
    //判断该对象是对象还是数组 
    let newObj = obj instanceof Array ? []:{};
    for(let key in obj){
        //for in 会遍历一个对象原型上的所有可枚举属性，通过hasOwnProperty可以过滤
        if(obj.hasOwnProperty(key)){
            newObj[key] = obj[key];
        }
    }
    return newObj;
}
console.log(shallowCopy(obj))
console.log(shallowCopy(arr))

let arr = [{name:'azirkxs'},'haha',22]
function deepCopy(obj){
    //判断是否是一个对象
    if(typeof obj !== 'object') return;
    if(obj === null) return obj;//处理null值
    if (target instanceof Date) return new Date(target) // 处理日期
    if (target instanceof RegExp) return new RegExp(target) // 处理正则
 
    //判断该对象是对象还是数组 
    let newObj = obj instanceof Array ? []:{};
    for(let key in obj){
        //for in 会遍历一个对象原型上的所有可枚举属性，通过hasOwnProperty可以过滤
        if(obj.hasOwnProperty(key)){
            newObj[key] = typeof obj[key] === 'object' ? deepCopy(obj[key]) : obj[key];
        }
    }
    return newObj;
}

let arr2 = deepCopy(arr)
arr[0].name = 'kxs'
console.log(arr[0].name) //kxs
console.log(arr2[0].name) //azirkxs

JSON.parse(JSON.stringify(arr))