如何在 Map() 的 JSON 对象中合并公共数据？

Question

我有一些 JSON 数据是这样的：

{
        "+2555970315763":{
            "uid": "u9weKk62GvXu4Yf66HM2TFXDL5S2",
            "phoneNumber": "+2555970315763",
            "lastTime": "Mon, 14 Feb 2022 09:40:32 GMT"
        },
        "+2555970605736":{
            "uid": "n3qGtqMWqVXGyZMSFz7HqwtfTDB3",
            "phoneNumber": "+2555970605736",
            "lastTime": "Mon, 14 Feb 2022 05:32:53 GMT"
        },
        "+2555973055799":{
            "uid": "hGHq2TLCkeWsCWOZ0KdSI6mKbvp2",
            "phoneNumber": "+2555973055799",
            "lastTime": "Mon, 21 Feb 2022 05:25:46 GMT",
            "usage": [
                {
                    "firstTime": "18:04:34",
                    "count": 1,
                    "date": "2022-02-19"
                },
                {
                    "firstTime": "14:53:08",
                    "count": 6,
                    "date": "2022-02-21"
                },
                {
                    "count": 4,
                    "date": "2022-02-22",
                    "firstTime": "12:53:56"
                },
                {
                    "date": "2022-02-25",
                    "count": 4,
                    "firstTime": "12:12:03"
                },
                {
                    "firstTime": "12:35:04",
                    "date": "2022-02-26",
                    "count": 34
                },
                {
                    "count": 31,
                    "firstTime": "11:32:03",
                    "date": "2022-02-27"
                }
            ]
        },
        "+2555974235764":{
            "uid": "uUWJvN5XVwWGfNiC6UuwlmVVTO73",
            "phoneNumber": "+2555974235764",
            "lastTime": "Wed, 16 Feb 2022 06:04:54 GMT",
            "usage": [
                {
                    "count": 2,
                    "date": "2022-02-16",
                    "firstTime": "12:15:38"
                },
                {
                    "date": "2022-02-17",
                    "firstTime": "11:45:19",
                    "count": 43
                },
                {
                    "count": 148,
                    "firstTime": "11:33:53",
                    "date": "2022-02-19"
                },
                {
                    "count": 127,
                    "firstTime": "11:42:46",
                    "date": "2022-02-20",
                    "dow": "Sunday"
                },
                {
                    "firstTime": "12:18:28",
                    "count": 42,
                    "date": "2022-02-22",
                }
            ]
        },
        "+2555979295712":{
            "uid": "Cx63RRHQYpMMwfAbi0ebqledk5G3",
            "phoneNumber": "+2555979295712",
            "lastTime": "Tue, 01 Mar 2022 13:18:23 GMT",
        },
        "+2555970875726":{
            "uid": "I5I3SFgZT3MAxomDHrPGq17OMcO2",
            "phoneNumber": "+2555970875726",
            "lastTime": "Tue, 01 Mar 2022 15:43:43 GMT",
        },
        "+2555970125770":{
            "uid": "y9IcP0S6uHcOjPk0deXbuXZC4VA3",
            "phoneNumber": "+2555970125770",
            "lastTime": "Tue, 25 Jan 2022 09:38:27 GMT",
        },
        "+2555970335754":{
            "uid": "gS2RkZdBlHZNOIYQUXB1iPfOkQ33",
            "phoneNumber": "+2555970335754",
            "lastTime": "Fri, 18 Feb 2022 07:40:32 GMT",
        },
        "+2555974475787":{
            "uid": "QfSNsAMob8SXYWFB8TmgC0WMAXY2",
            "phoneNumber": "+2555974475787",
            "lastTime": "Fri, 11 Feb 2022 08:44:47 GMT",
        },
        "+2555974725740":{
            "uid": "9y4unCW5PHRA0AjcVZdHFXh9thy1",
            "phoneNumber": "+2555974725740",
            "lastTime": "Mon, 21 Feb 2022 13:57:27 GMT",
        }
    }

我想合并一些 phonenumber 数据，例如 +2555973055799 和 +2555974235764，例如：它们都有 date:[=17 的对象=] 所以，合并后的结果对象应该是这样的：

{
    "firstTime": "11:33:53",
    "count": 149,
    "date": "2022-02-19"
},

count 应该是电话号码广告中两个对象的总和 firstTime 应该是第一个时间。和 uid, phone number 应该被连接起来， lastTime 应该是两倍中的较大者？

剩下的phonenumbers数据应该不变，只有这两个object数据应该合并，

我应该怎么做？

有人可以帮忙吗？

Answer 1

我不确定我是否正确理解你的问题，但让我们试一试。

所以，您想根据使用日期合并数据。如果在同一日期使用了 2 个或更多 json 个对象，那么您想查看这些数据的日期、数量和首次使用时间吗？

编辑：

所以，我创建了一个原型。

也许这是一个有点复杂的解决方案，但我认为这是一个很好的开始。我将每个对象与使用数据分开，然后查找日期重复项，我存储了 uid 和相同的日期。然后我查找计数并比较 firstTime 数据和结果变量中存储的所有内容。

检查控制台日志以获取结果。

    var result = [] // we will store the result here

    var dataWithUsage = [];
    for (var i in obj) // iterate thru every data
        if (obj[i].usage)  // if data has usage property
        {
            dataWithUsage.push(obj[i]) // separate it from the main data structure
        }

    // console.log(dataWithUsage)

    var usages = [] // we will collect every usage here
    dataWithUsage.forEach(data => {
        // console.log(data.usage, data.uid)
        data.usage.forEach(element => {
            usages.push({ date: element.date, uid: data.uid })
        });
    });
    // console.log(usages)

    // we will compare every usage and we try to do it only once
    for (let i = 0; i < usages.length; i++) {
        for (let j = i + 1; j < usages.length; j++) {
            // console.log(usages[i], "vs" , usages[j])
            if (usages[i].date == usages[j].date) {
                result.push({ date: usages[i].date, uid1: usages[i].uid, uid2: usages[j].uid })
            }
        }
    }

    // at this point in the results we have our uid's with dates. Now we can do the data merge        
    result.forEach(element => {
        var uid1Index = dataWithUsage.findIndex(object => object.uid == element.uid1)
        var uid2Index = dataWithUsage.findIndex(object => object.uid == element.uid2) // we got the 2 objects for data merge

        var count = 0
        var firstTime

        let usageIndexofuid1 = dataWithUsage[uid1Index].usage.findIndex(elem => elem.date == element.date)
        let usageIndexofuid2 = dataWithUsage[uid2Index].usage.findIndex(elem => elem.date == element.date)

        count = dataWithUsage[uid1Index].usage[usageIndexofuid1].count + dataWithUsage[uid2Index].usage[usageIndexofuid2].count

        // console.log(dataWithUsage[uid1Index].usage[usageIndexofuid1].firstTime, dataWithUsage[uid2Index].usage[usageIndexofuid2].firstTime)
        // console.log(dataWithUsage[uid1Index].usage[usageIndexofuid1].firstTime > dataWithUsage[uid2Index].usage[usageIndexofuid2].firstTime)

        firstTime = ((dataWithUsage[uid1Index].usage[usageIndexofuid1].firstTime < dataWithUsage[uid2Index].usage[usageIndexofuid2].firstTime) ? dataWithUsage[uid1Index].usage[usageIndexofuid1].firstTime : dataWithUsage[uid2Index].usage[usageIndexofuid2].firstTime)

        // console.log(firstTime,"fistTime")
        // console.log(count,"count")

        element.count = count
        element.firstTime = firstTime


    });


    console.log("result")
    console.log(result)

https://jsfiddle.net/peaq6cb3/

如何在 Map() 的 JSON 对象中合并公共数据？

How to combine common data in JSON object of Map()?

javascript

node.js

json

object

merge