function diff(obj1,obj2){
var o1 = obj1 instanceof Object;
var o2 = obj2 instanceof Object;
if(!o1 || !o2){/* 判断不是对象 */
return obj1 === obj2;
}
if(Object.keys(obj1).length !== Object.keys(obj2).length){
return false;
//Object.keys() 返回一个由对象的自身可枚举属性(key值)组成的数组,例如：数组返回下表：let arr = ["a", "b", "c"];console.log(Object.keys(arr))->0,1,2;
}
for(var attr in obj1){
var t1 = obj1[attr] instanceof Object;
var t2 = obj2[attr] instanceof Object;
if(t1 && t2){
return diff(obj1[attr],obj2[attr]);
}else if(obj1[attr] !== obj2[attr]){
return false;
}
}
return true;
}
var a = {
name :{
sex :'men'
}
};
var b = {
name :{
sex :'man'
}
};
结果：false
