javascript - 如何从对象获取邮政编码？

Question

我有这个:

[Object]
  0:Object
    zipCode:"1232"

现在我想要的是从我尝试过的对象中获取 zipCode:

Object[0].zipCode但我收到消息 0 未定义

更新:

 this.restService.getByParam("findAddress", customerId)
                    .subscribe(results =>   {
                    this.address = results.payload;
                });

然后我得到了那个对象，现在我想做这样的事情:

console.log(this.address[0].zipCode

Answer 1

var obj = { 0 : {'zipCode':"1232"} }

for(var key in obj) {
  console.log(obj[key].zipCode);
}