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我正在按数字属性对数组排序,但现在我想使用字符串属性应用第二个排序。我可以吗?[副本]

javascript

-1

Onyx · 技术社区 · 5 年前

let array = [
    { name: "Apple", number: "1" },
    { name: "John", number: "2" },
    { name: "Car", number: "1" },
    { name: "Tiger", number: "1" },
    { name: "Jeep", number: "2" },
    { name: "Bee", number: "1" },
    { name: "Zoo", number: "2" },
    { name: "Cow", number: "9" },
    { name: "Pet", number: "6" },
]

现在我使用number属性对这个数组进行排序,结果如下:

let array = [
    { name: "Apple", number: "1" },
    { name: "Car", number: "1" },
    { name: "Tiger", number: "1" },
    { name: "Bee", number: "1" },
    { name: "Zebra", number: "2" },
    { name: "Jeep", number: "2" },
    { name: "Quake", number: "2" },
    { name: "Pet", number: "6" },
    { name: "Cow", number: "9" }, 
]

这是通过使用这个函数来完成的

    sortedByNumber(array){
        return array.sort((a, b) => a.number - b.number)
    },

我想知道是否也可以使用name属性对数组排序,以便元素按字母顺序排列,同时保持数字顺序。结果应该是这样的:

let array = [
    { name: "Apple", number: "1" },
    { name: "Bee", number: "1" },
    { name: "Car", number: "1" },
    { name: "Tiger", number: "1" },
    { name: "Jeep", number: "2" },
    { name: "Quake", number: "2" },
    { name: "Zebra", number: "2" },
    { name: "Pet", number: "6" },
    { name: "Cow", number: "9" },
]

2 回复 | 直到 5 年前

Joseph 5 年前

我想这就是你想要的

console.log(array.sort((a, b) => {
    if (a.number > b.number) return 1;
    if (a.number < b.number) return -1;

    if (a.name > b.name) return 1;
    if (a.name < b.name) return -1;
}))

[
  {
    "name": "Apple",
    "number": "1"
  },
  {
    "name": "Bee",
    "number": "1"
  },
  {
    "name": "Car",
    "number": "1"
  },
  {
    "name": "Tiger",
    "number": "1"
  },
  {
    "name": "Jeep",
    "number": "2"
  },
  {
    "name": "John",
    "number": "2"
  },
  {
    "name": "Zoo",
    "number": "2"
  },
  {
    "name": "Pet",
    "number": "6"
  },
  {
    "name": "Cow",
    "number": "9"
  }
]

Siva Kondapi Venkata 5 年前

let array = [
  { name: "Apple", number: "1" },
  { name: "John", number: "2" },
  { name: "Car", number: "1" },
  { name: "Tiger", number: "1" },
  { name: "Jeep", number: "2" },
  { name: "Bee", number: "1" },
  { name: "Zoo", number: "2" },
  { name: "Cow", number: "9" },
  { name: "Pet", number: "6" }
];

const strCompare = (a, b) => {
  if (b > a) {
    return -1;
  }
  if (a > b) {
    return 1;
  }
  return 0;
};

const compare = (a, b) => {
  if (a.number === b.number) {
    return strCompare(a.name, b.name);
  }
  return Number(a.number) - Number(b.number);
};

array.sort(compare);

console.log(array)