javascript - 在 Javascript 数组中排列一个重复对象以生成一个值

Question

我正在尝试排列我当前的对象，如下所示

var myValues = [
{
    client: "FIRE",
    firstname: "Test",
    id: "test@fire.com",
    arrangeid: "FIREFOX",
    region: "FOP",
    secondname: "Testy",
    status: "Approved"
},
{
    client: "FIRE",
    firstname: "Test",
    id: "test@fire.com",
    arrangeid: "BUZZZZZZ",
    region: "FOP",
    secondname: "Testy",
    status: "Approved"
},
{
    client: "PANTER",
    firstname: "Panty",
    id: "panty@panter.com",
    arrangeid: "PANTER",
    region: "PAN",
    secondname: "mc panty",
    status: "Approved"
},
{
    client: "BAT",
    firstname: "Bruce",
    id: "bat@bat.com",
    arrangeid: "BLACKBAT",
    region: "BLK",
    secondname: "Wyne",
    status: "Approved"
}

]

所以我得到了这个对象，前两个ID是相同的，但它们有不同的arrangeid。我希望能够加入他们，将他们聚集在一起。对象看起来像这样:

    var myValues = [
{
    client: "FIRE",
    firstname: "Test",
    id: "test@fire.com",
    arrangeid: ["BUZZZZZZ", "FIREFOX"],
    region: "FOP",
    secondname: "Testy",
    status: "Approved"
},
{
    client: "PANTER",
    firstname: "Panty",
    id: "panty@panter.com",
    arrangeid: ["PANTER"],
    region: "PAN",
    secondname: "mc panty",
    status: "Approved"
},
{
    client: "BAT",
    firstname: "Bruce",
    id: "bat@bat.com",
    arrangeid: ["BLACKBAT"],
    region: "BLK",
    secondname: "Wyne",
    status: "Approved"
}

]

我有一个jsfidle here ，我在那里得到了一个结果。能不能做得更好、更干净。我是否正确地对待它？

Answer 1

您可以使用reduce , Object.values() 和 spread syntax像这样:

var myValues = [{client:"FIRE",firstname:"Test",id:"test@fire.com",arrangeid:"FIREFOX",region:"FOP",secondname:"Testy",status:"Approved"},{client:"FIRE",firstname:"Test",id:"test@fire.com",arrangeid:"BUZZZZZZ",region:"FOP",secondname:"Testy",status:"Approved"},{client:"PANTER",firstname:"Panty",id:"panty@panter.com",arrangeid:"PANTER",region:"PAN",secondname:"mc panty",status:"Approved"},{client:"BAT",firstname:"Bruce",id:"bat@bat.com",arrangeid:"BLACKBAT",region:"BLK",secondname:"Wyne",status:"Approved"}];

const merged = myValues.reduce((acc, a) => {
  acc[a.client] = acc[a.client] || { ...a, arrangeid: [] };
  acc[a.client].arrangeid.push(a.arrangeid);
  return acc;
},{})

const output = Object.values(merged);
console.log(output)

累加器是一个对象，以每个唯一的客户端作为其键，以便更容易对它们进行分组。

{
  "FIRE": {
    "client": "FIRE",
    "firstname": "Test",
    "id": "test@fire.com",
    "arrangeid": [ "FIREFOX", "BUZZZZZZ" ],
    "region": "FOP",
    "secondname": "Testy",
    "status": "Approved"
  },
  "PANTER": {
    "client": "PANTER",
    "id": "panty@panter.com",
    "arrangeid": [
      "PANTER"
    ],
   ...
  }
  ...
}