Question

我有以下对象数组：

arr = [
    {
        name: "john",
        age: 24,
        gender: "male"
    },
    {
        name: "jane",
        age: 27,
        gender: "female"
    },
    {
        name: "joe",
        age: 29,
        gender: "male"
    }
]

我正在尝试将name和age属性过滤为新数组。我试过这个：

const newFields = arr.filter((item) => {
    return (
        item.name && item.age
    );
});

但由于某种原因newFields返回一个空数组。

Answer 1

而不是.filter()使用.map()

＆＃13;

const arr = [
  {
    name: "john",
    age: 24,
    gender: "male"
  },
  {
    name: "jane",
    age: 27,
    gender: "female"
  },
  {
    name: "joe",
    age: 29,
    gender: "male"
  }
];

const newFields = arr.map(item => {
  return {
      name: item.name,
      age: item.age
    }
});
console.log(newFields)

＆＃13;

过滤一个对象数组返回空数组

1 个答案: