js 深复制一个对象

自定义 cloneObj 方法

//深复制对象
var cloneObj = function (obj) {var newObj = {};if (obj instanceof Array) {newObj = [];}for (var key in obj) {var val = obj[key];newObj[key] = typeof val === 'object' ? cloneObj(val) : val;}return newObj;
};