一、利用扩展运算符...对数组中嵌套对象进行深拷贝
var arr=[{a:1,b:2},{c:1,d:2}]; ???var arr2=[]; ???????arr.forEach(item=>{ ?????var {...obj}=item; ?????arr2.push(obj); ???}) ???arr2[1].d=7 ???????console.log(arr,arr2)
js对象深拷贝
原文地址:https://www.cnblogs.com/raind/p/9019108.html