javascript - 有没有办法检查整个数组上对象的键值？

Question

我正在寻找一种方法来检查整个数组中对象键的值是否为空，实际上我从一个 API 接收到一个长度超过 1500 的冗长数组，所以我不想运行映射函数，或者循环，因为数组是太长了。

这里是截图。

这是我从 API 获得的响应示例

[{
    reference: "1234",
    address: "abcz",
    city: "sydney",
    conso: "",
    date: "26/04/2017"
  },
  {
    reference: "1234",
    address: "abcz",
    city: "sydney",
    conso: "",
    date: "26/04/2017"
  },
  {
    reference: "1234",
    address: "abcz",
    city: "sydney",
    conso: "",
    date: "26/04/2017"
  },
  {
    reference: "1234",
    address: "abcz",
    city: "sydney",
    conso: "",
    date: "26/04/2017"
  },
  ....

]

Answer 1

你可以使用 Array#some ，在第一次找到时退出。

var allEmpty = data.some(o => o[key] !== '');

或检查所有，然后使用 Array#every

var allEmpty = data.every(o => o[key] === '');