javascript - 比较两个对象数组并在 Javascript 中值为 true 时返回一个新数组

Question

我需要比较 2 个数组

const inviteFriends = [
  {
    userId: 'u12p3',
    name: 'Goku',
    invited: true
  },
  {
    userId: 'uefi3',
    name: 'Vegeta',
    invited: true
  }
]

const allFriends = [
  {
    userId: 'u12p3',
    name: 'Goku',
    invited: false
  },
  {
    userId: 'ufisj',
    name: 'Goten',
    invited: false
  },
  {
    userId: 'uefi3',
    name: 'Vegeta',
    invited: false
  },
]

如果invited是true我需要返回一个新数组。

像这样的东西：

const newArray = [
  {
    userId: 'u12p3',
    name: 'Goku',
    invited: true
  },
  {
    userId: 'ufisj',
    name: 'Goten',
    invited: false
  },
  {
    userId: 'uefi3',
    name: 'Vegeta',
    invited: true
  },
]

知道如何实现这一目标吗？请帮忙

标签： javascriptarrays

Answer 1

const inviteFriends = [
  {
    userId: 'u12p3',
    name: 'Goku',
    invited: true
  },
  {
    userId: 'uefi3',
    name: 'Vegeta',
    invited: true
  }
]

const allFriends = [
  {
    userId: 'u12p3',
    name: 'Goku',
    invited: false
  },
  {
    userId: 'ufisj',
    name: 'Goten',
    invited: false
  },
  {
    userId: 'uefi3',
    name: 'Vegeta',
    invited: false
  },
];

const newArr = allFriends.map((friend) => {
  const found = inviteFriends.find((invited) => {
    return invited.userId === friend.userId
  });
  return {...friend, ...found};
});

console.log(newArr);