對具有最大特定鍵值總數的物件陣列進行排序

我有一個物件陣列，如下所示：

var tempListData = [
    {
        "driver": "467f0b0bc9a",
        "company": "9d85ccdcfc5",
        "driverName": "David Smith",
        "companyName": "Express",
        "CreateIdlingEvent": 0,
        "CreateSpeedingEvent": 2502,
        "CreateHarshAccelerationEvent": 1988,
        "CreateHarshDecelerationEvent": 1450
    },
    {
        "driver": "7fcc39deb8fc7",
        "company": "a2345ccdcfc5",
        "driverName": "John Doe",
        "companyName": "Express",
        "CreateSpeedingEvent": 2970,
        "CreateHarshAccelerationEvent": 2414,
        "CreateHarshDecelerationEvent": 1750,
        "CreateIdlingEvent": 0
    },
    {
        "driver": "c4e39006",
        "company": "9d8616dd",
        "driverName": "Henry",
        "companyName": "Express",
        "CreateIdlingEvent": 250,
        "CreateSpeedingEvent": 2300,
        "CreateHarshAccelerationEvent": 1988,
        "CreateHarshDecelerationEvent": 1450
    }
]

我需要根據CreateSpeedingEventandCreateIdlingEvent和CreateHarshAccelerationEventandCreateHarshDecelerationEvent值的最大總數對物件進行排序。

即具有“CreateIdlingEvent”、CreateSpeedingEvent、CreateHarshAccelerationEvent 和 CreateHarshDecelerationEvent 的最大值的物件，應該成為陣列中的第一個物件。

uj5u.com熱心網友回復：

1）您可以使用自定義排序比較器功能對其進行排序

var tempListData = [
  {
    driver: "467f0b0bc9a",
    company: "9d85ccdcfc5",
    driverName: "David Smith",
    companyName: "Express",
    CreateIdlingEvent: 0,
    CreateSpeedingEvent: 2502,
    CreateHarshAccelerationEvent: 1988,
    CreateHarshDecelerationEvent: 1450,
  },
  {
    driver: "7fcc39deb8fc7",
    company: "a2345ccdcfc5",
    driverName: "John Doe",
    companyName: "Express",
    CreateSpeedingEvent: 2970,
    CreateHarshAccelerationEvent: 2414,
    CreateHarshDecelerationEvent: 1750,
    CreateIdlingEvent: 0,
  },
  {
    driver: "c4e39006",
    company: "9d8616dd",
    driverName: "Henry",
    companyName: "Express",
    CreateIdlingEvent: 250,
    CreateSpeedingEvent: 2300,
    CreateHarshAccelerationEvent: 1988,
    CreateHarshDecelerationEvent: 1450,
  },
];

const getSum = (o) =>
  o.CreateIdlingEvent  
  o.CreateSpeedingEvent  
  o.CreateHarshAccelerationEvent  
  o.CreateHarshDecelerationEvent;

const result = [...tempListData].sort((a, b) => getSum(b) - getSum(a));

console.log(result);

2）您可以先使用創建一個map總和Map，然后使用自定義排序功能對其進行排序：

var tempListData = [
  {
    driver: "467f0b0bc9a",
    company: "9d85ccdcfc5",
    driverName: "David Smith",
    companyName: "Express",
    CreateIdlingEvent: 0,
    CreateSpeedingEvent: 2502,
    CreateHarshAccelerationEvent: 1988,
    CreateHarshDecelerationEvent: 1450,
  },
  {
    driver: "7fcc39deb8fc7",
    company: "a2345ccdcfc5",
    driverName: "John Doe",
    companyName: "Express",
    CreateSpeedingEvent: 2970,
    CreateHarshAccelerationEvent: 2414,
    CreateHarshDecelerationEvent: 1750,
    CreateIdlingEvent: 0,
  },
  {
    driver: "c4e39006",
    company: "9d8616dd",
    driverName: "Henry",
    companyName: "Express",
    CreateIdlingEvent: 250,
    CreateSpeedingEvent: 2300,
    CreateHarshAccelerationEvent: 1988,
    CreateHarshDecelerationEvent: 1450,
  },
];

const map = new Map();
tempListData.forEach((o) =>
  map.set(
    o.driver,
    o.CreateIdlingEvent  
      o.CreateSpeedingEvent  
      o.CreateHarshAccelerationEvent  
      o.CreateHarshDecelerationEvent
  )
);

const result = [...tempListData].sort((a, b) => map.get(b.driver) - map.get(a.driver));

console.log(result);

標籤：javascript 数组

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