Javascript 合并和重组对象

我的结果对象如下所示：

[{
  "device": {
    "_id": "5d25f9d2dc4aea7838b0aaa1",
    "serialNumber": "100000100215",

    "patientRiskStatus": "high",
    "createdAt": "2017-04-16T01:22:00.000Z",
    "updatedAt": "2020-01-01T05:29:19.632Z"
  },
  "firstName": "userName"
}]

我想将此对象结构转换为：

[{

  "_id": "5d25f9d2dc4aea7838b0aaa1",
  "serialNumber": "100000100215",
  "firstName": "userName",
  "patientRiskStatus": "high",
  "createdAt": "2017-04-16T01:22:00.000Z",
  "updatedAt": "2020-01-01T05:29:19.632Z",
}]

这是我的密码-

var filteredDevices = []
var result = []

if (user.role === 'Nurse') {
  devices.forEach((device) => {
    filteredDevices.push({
      device: device,
      firstName: "userName"
    })
    result = filteredDevices.map(({ device, ...rest }) => ({
      ...rest,
      ...device
    }))
  })
}

我尝试了下面建议的解决方案，它在代码段示例中看起来不错，但我的node.js的行为却不同，我不知道为什么

下面是我在尝试解决方案时得到的结果。不知道为什么会有这么长的结果

[
    {
        "firstName": "Rikin",
        "__parentArray": [
            {
                "_id": "5d25f9d2dc4aea7838b0aaa1",
                "serialNumber": "100000100215",
                "area": "Office 1",
                "connectionStatus": 0,
                "gatewayKey": "gk_d0202d93d0d29293a1",
                "applicationNumber": 40,
                "firmwareVersion": "v12.1.8",
                "needsAttention": true,
                "verificationCode": "4144",
                "patientRiskStatus": "high",
                "createdAt": "2017-04-16T01:22:00.000Z",
                "updatedAt": "2020-01-01T05:29:19.632Z"
            },
            {
                "_id": "5d25f9d2dc4aea7838b0aaa2",
                "serialNumber": "100000100216",
                "area": "Office 2",
                "connectionStatus": 0,
                "gatewayKey": "gk_d0202d93d0d29293a1",
                "applicationNumber": 41,
                "firmwareVersion": "v12.1.8",
                "needsAttention": true,
                "verificationCode": "4145",
                "patientRiskStatus": "low",
                "createdAt": "2017-04-16T01:22:00.000Z",
                "updatedAt": "2017-04-16T01:22:00.000Z"
            },
            {
                "_id": "5d25f9d2dc4aea7838b0aaa3",
                "serialNumber": "100000100217",
                "area": "Office 4",
                "connectionStatus": 0,
                "gatewayKey": "gk_d0202d93d0d29293a1",
                "applicationNumber": 60,
                "firmwareVersion": "v12.1.8",
                "needsAttention": true,
                "verificationCode": "4146",
                "patientRiskStatus": "low",
                "createdAt": "2017-04-16T01:22:00.000Z",
                "updatedAt": "2017-04-16T01:22:00.000Z"
            }
        ],
        "__index": 0,
        "$isDocumentArrayElement": true,
        "$__": {
            "strictMode": true,
            "getters": {},
            "_id": "5d25f9d2dc4aea7838b0aaa1",
            "wasPopulated": false,
            "activePaths": {
                "paths": {
                    "_id": "init",
                    "serialNumber": "init",
                    "area": "init",
                    "connectionStatus": "init",
                    "gatewayKey": "init",
                    "applicationNumber": "init",
                    "firmwareVersion": "init",
                    "needsAttention": "init",
                    "verificationCode": "init",
                    "patientRiskStatus": "init",
                    "createdAt": "init",
                    "updatedAt": "init"
                },
                "states": {
                    "ignore": {},
                    "default": {},
                    "init": {
                        "_id": true,
                        "serialNumber": true,
                        "area": true,
                        "connectionStatus": true,
                        "gatewayKey": true,
                        "applicationNumber": true,
                        "firmwareVersion": true,
                        "needsAttention": true,
                        "verificationCode": true,
                        "patientRiskStatus": true,
                        "createdAt": true,
                        "updatedAt": true
                    },
                    "modify": {},
                    "require": {}
                },
                "stateNames": [
                    "require",
                    "modify",
                    "init",
                    "default",
                    "ignore"
                ]
            },
            "pathsToScopes": {},
            "cachedRequired": {},
            "$setCalled": {},
            "ownerDocument": {
                "apiCallCount": 0,
                "_id": "58dc5b9f3107602dbaba1281",
                "email": "rikyshah@gmail.com",
                "password": "password",
                "userName": "rikyshah",
                "companyName": "RS company",
                "apiKey": "Hhd87AD&jasd90dlK09aosdO",
                "buildings": [
                    {
                        "gateways": [
                            {
                                "devices": [
                                    {
                                        "_id": "5d25f9d2dc4aea7838b0aaa1",
                                        "serialNumber": "100000100215",
                                        "area": "Office 1",
                                        "connectionStatus": 0,
                                        "gatewayKey": "gk_d0202d93d0d29293a1",
                                        "applicationNumber": 40,
                                        "firmwareVersion": "v12.1.8",
                                        "needsAttention": true,
                                        "verificationCode": "4144",
                                        "patientRiskStatus": "high",
                                        "createdAt": "2017-04-16T01:22:00.000Z",
                                        "updatedAt": "2020-01-01T05:29:19.632Z"
                                    },
                                    {
                                        "_id": "5d25f9d2dc4aea7838b0aaa2",
                                        "serialNumber": "100000100216",
                                        "area": "Office 2",
                                        "connectionStatus": 0,
                                        "gatewayKey": "gk_d0202d93d0d29293a1",
                                        "applicationNumber": 41,
                                        "firmwareVersion": "v12.1.8",
                                        "needsAttention": true,
                                        "verificationCode": "4145",
                                        "patientRiskStatus": "low",
                                        "createdAt": "2017-04-16T01:22:00.000Z",
                                        "updatedAt": "2017-04-16T01:22:00.000Z"
                                    },
                                    {
                                        "_id": "5d25f9d2dc4aea7838b0aaa3",
                                        "serialNumber": "100000100217",
                                        "area": "Office 4",
                                        "connectionStatus": 0,
                                        "gatewayKey": "gk_d0202d93d0d29293a1",
                                        "applicationNumber": 60,
                                        "firmwareVersion": "v12.1.8",
                                        "needsAttention": true,
                                        "verificationCode": "4146",
                                        "patientRiskStatus": "low",
                                        "createdAt": "2017-04-16T01:22:00.000Z",
                                        "updatedAt": "2017-04-16T01:22:00.000Z"
                                    }
                                ],
                                "_id": "5d254b64ba574040d9632ada",
                                "gatewayName": "RBC-xaka-001",
                                "gatewayKey": "gk_d0202d93d0d29293a1",
                                "suite": "RBC1",
                                "createdAt": "2017-04-16T01:22:00.000Z",
                                "updatedAt": "2020-01-01T05:29:19.632Z"
                            },
                            {
                                "devices": [
                                    {
                                        "_id": "5d25f9d2dc4aea7838b0aaa0",
                                        "serialNumber": "100000100214",
                                        "area": "Office 3",
                                        "connectionStatus": 0,
                                        "gatewayKey": "gk_d0202d93d0d29293a2",
                                        "applicationNumber": 60,
                                        "firmwareVersion": "v12.1.8",
                                        "needsAttention": true,
                                        "verificationCode": "4147",
                                        "patientRiskStatus": "low",
                                        "createdAt": "2017-04-16T01:22:00.000Z",
                                        "updatedAt": "2017-04-16T01:22:00.000Z"
                                    }
                                ],
                                "_id": "5d254b7174d7b3a73dff342f",
                                "gatewayName": "RBC-xaka-002",
                                "gatewayKey": "gk_d0202d93d0d29293a2",
                                "suite": "RBC2",
                                "createdAt": "2017-04-16T01:22:00.000Z",
                                "updatedAt": "2017-04-16T01:22:00.000Z"
                            }
                        ],
                        "_id": "5d254bb179584ebcbb68b712",
                        "buildingName": "RBC Bank Tower",
                        "address": "1 Front Street East",
                        "suite": "110",
                        "floor": "2nd floor",
                        "timeZone": "America/Toronto",
                        "createdAt": "2017-04-16T01:22:00.000Z",
                        "updatedAt": "2020-01-01T05:29:19.632Z"
                    }
                ],
                "createdAt": "2017-04-16T01:22:00.000Z",
                "updatedAt": "2020-01-01T05:29:19.632Z"
            },
            "fullPath": "buildings.gateways.devices",
            "emitter": {
                "_events": {},
                "_eventsCount": 2,
                "_maxListeners": 0
            },
            "$options": {}
        },
        "isNew": false,
        "_doc": {
            "_id": "5d25f9d2dc4aea7838b0aaa1",
            "serialNumber": "100000100215",
            "area": "Office 1",
            "connectionStatus": 0,
            "gatewayKey": "gk_d0202d93d0d29293a1",
            "applicationNumber": 40,
            "firmwareVersion": "v12.1.8",
            "needsAttention": true,
            "verificationCode": "4144",
            "patientRiskStatus": "high",
            "createdAt": "2017-04-16T01:22:00.000Z",
            "updatedAt": "2020-01-01T05:29:19.632Z"
        },
        "$locals": {},
        "$init": true
    },.....

---

使用

array.map（）

迭代数组。在回调中，解构

设备

属性，并使用rest语法获取对象的其余部分

通过将

设备

和原始对象的其余部分展开成新对象来重建对象

const arr=[{“device”：{“id”：“5D25F9D2DC4AEA783800AAA1”，“serialNumber”：“10000000215”，“patientRiskStatus”：“high”，“createdAt”：“2017-04-16T01:22:00.000Z”，“updatedAt”：“2020-01-01T05:29:19.632Z”}，“firstName”：“userName”}]
const result=arr.map（（{device，…rest}）=>({
休息
…装置
}))
console.log（result）

代码片段看起来很完美，但当我粘贴问题时，我的node.js代码只给出了很长的结果。请注意，这会创建一个新数组，并且不会改变原始数组。原始输入结构和您在问题中显示的内容并不相同。此外，您正在使用

user

对象过滤数据，该对象未出现在问题中。我建议您打开一个新问题，添加原始输入、原始代码和所需输出。