使用函数将对象添加到对象数组中？

Question

我了解将对象添加到数组所需的命令。我知道它的array.push(object).

但是，假设我有这个对象数组：

const artists = [{
    "rank": 1,
    "name": "Rakim",
    "year": 1985,
    "album": "Paid in Full",
  },
  {
    "rank": 2,
    "name": "Nas",
    "year": 1994,
    "album": "Illmatic"
  }
]

如果我需要添加一个具有功能的新功能。我该怎么做？我想让它成为一个功能，允许我在未来添加多个。

所以像，

function addArtist(array {}) {
  return array;
}

console.log(addArtist(array {
  new object here
}));

Answer 1

您需要使用 将一个array对象传递给函数，并将其传递给初始对象artists（应该是let）spread operator：

let artists = [
  {
    "rank": 1,
    "name": "Rakim",
    "year": 1985,
    "album": "Paid in Full"
  },
  {
    "rank": 2,
    "name": "Nas",
    "year": 1994,
    "album": "Illmatic"
  }
]


function addArtist (artistsToAdd) {
     artists.push(...artistsToAdd);
     return artists;
}

const objects = [
  {
    "rank": 3,
    "name": "Bob",
    "year": 1995,
    "album": "Album3"
  },
  {
    "rank": 4,
    "name": "Nas",
    "year": 1992,
    "album": "Album4"
  }
];
console.log(addArtist(objects));

您还可以使用concat将对象添加到列表中。