Javascript 按不同键对已排序数组重新排序_Javascript_Arrays_Sorting

Javascript 按不同键对已排序数组重新排序

javascript arrays sorting

Javascript 按不同键对已排序数组重新排序,javascript,arrays,sorting,Javascript,Arrays,Sorting,我有这个数组，它已经按上传时间排序了 [ { id: 1133, userId: 101697, uploadTime: '2020-09-14T16:19:16.000Z' }, { id: 1132, userId: 101543, uploadTime: '2020-09-14T16:17:27.000Z' }, { id: 1131, userId: 101697, uploadTime: '2020-09-14T16:09:49.000Z'

我有这个数组，它已经按上传时间排序了


    [
      { id: 1133, userId: 101697, uploadTime: '2020-09-14T16:19:16.000Z' },
      { id: 1132, userId: 101543, uploadTime: '2020-09-14T16:17:27.000Z' },
      { id: 1131, userId: 101697, uploadTime: '2020-09-14T16:09:49.000Z' },
      { id: 1130, userId: 101697, uploadTime: '2020-09-14T16:09:16.000Z' },
      { id: 1128, userId: 101543, uploadTime: '2020-09-09T21:48:46.000Z' },
      { id: 1127, userId: 101543, uploadTime: '2020-09-09T21:41:41.000Z' },
      { id: 1126, userId: 101543, uploadTime: '2020-09-09T21:35:37.000Z' },
      { id: 1125, userId: 101543, uploadTime: '2020-09-09T19:41:57.000Z' },
      { id: 1082, userId: 101577, uploadTime: '2020-08-21T15:24:35.000Z' },
      { id: 1049, userId: 101589, uploadTime: '2020-08-15T23:31:42.000Z' },
      { id: 1040, userId: 101589, uploadTime: '2020-08-14T15:04:01.000Z' },
      { id: 1036, userId: 101589, uploadTime: '2020-08-13T00:09:43.000Z' },
      { id: 1035, userId: 101527, uploadTime: '2020-08-12T20:07:34.000Z' },
      { id: 1034, userId: 101612, uploadTime: '2020-08-12T17:33:26.000Z' },
      { id: 996, userId: 101589, uploadTime: '2020-08-11T15:20:11.000Z' }, 
      { id: 889, userId: 101626, uploadTime: '2020-08-06T14:47:18.000Z' }, 
      { id: 864, userId: 101589, uploadTime: '2020-08-05T15:23:50.000Z' }, 
      { id: 863, userId: 101589, uploadTime: '2020-08-05T14:42:14.000Z' }, 
      { id: 852, userId: 101589, uploadTime: '2020-08-04T18:05:07.000Z' }, 
      { id: 851, userId: 101589, uploadTime: '2020-08-04T17:57:58.000Z' }
    ]

现在我想使用它，但仅适用于具有相同用户ID的对象，并且上载时间距离当前时间不到24小时。输出应如下所示：


    [
      { id: 1133, userId: 101697, uploadTime: '2020-09-14T16:19:16.000Z' },
      { id: 1131, userId: 101697, uploadTime: '2020-09-14T16:09:49.000Z' },
      { id: 1130, userId: 101697, uploadTime: '2020-09-14T16:09:16.000Z' },
      { id: 1132, userId: 101543, uploadTime: '2020-09-14T16:17:27.000Z' },
      { id: 1128, userId: 101543, uploadTime: '2020-09-09T21:48:46.000Z' },
      { id: 1127, userId: 101543, uploadTime: '2020-09-09T21:41:41.000Z' },
      { id: 1126, userId: 101543, uploadTime: '2020-09-09T21:35:37.000Z' },
      { id: 1125, userId: 101543, uploadTime: '2020-09-09T19:41:57.000Z' },
      { id: 1082, userId: 101577, uploadTime: '2020-08-21T15:24:35.000Z' },
      { id: 1049, userId: 101589, uploadTime: '2020-08-15T23:31:42.000Z' },
      { id: 1040, userId: 101589, uploadTime: '2020-08-14T15:04:01.000Z' },
      { id: 1036, userId: 101589, uploadTime: '2020-08-13T00:09:43.000Z' },
      { id: 1035, userId: 101527, uploadTime: '2020-08-12T20:07:34.000Z' },
      { id: 1034, userId: 101612, uploadTime: '2020-08-12T17:33:26.000Z' },
      { id: 996, userId: 101589, uploadTime: '2020-08-11T15:20:11.000Z' }, 
      { id: 889, userId: 101626, uploadTime: '2020-08-06T14:47:18.000Z' }, 
      { id: 864, userId: 101589, uploadTime: '2020-08-05T15:23:50.000Z' }, 
      { id: 863, userId: 101589, uploadTime: '2020-08-05T14:42:14.000Z' }, 
      { id: 852, userId: 101589, uploadTime: '2020-08-04T18:05:07.000Z' }, 
      { id: 851, userId: 101589, uploadTime: '2020-08-04T17:57:58.000Z' }
    ]

编辑：我最终是这样做的，比其他方法长一点：

    let dict = {}
    let dictArr = []
    let resultGroup = []
    let resultNoGroup = []
    
    temp.forEach((item) => {
        if (!dict[item.userId]) {
            dict[item.userId] = []
        }
        dict[item.userId].push(item)
        dict[item.userId].sort((a, b) => a.uploadTime - b.uploadTime)
    })
    
    for (let key in dict) {
        dictArr.push(dict[key])
    }
    
    dictArr.sort((a, b) => (a[0].uploadTime > b[0].uploadTime ? -1 : 1))
    
    for (let i = 0; i < dictArr.length; i++) {
        for (let j = 0; j < dictArr[i].length; j++) {
            const timeDiff = Math.abs(
                Math.round(
                    (new Date().getTime() -
                        new Date(dictArr[i][j].uploadTime).getTime()) /
                        (1000 * 3600)
                )
            )
            if (timeDiff <= 24) {
                resultGroup.push(dictArr[i][j])
            } else {
                resultNoGroup.push(dictArr[i][j])
            }
        }
    }
    
    resultNoGroup.sort((a, b) => (a.uploadTime > b.uploadTime ? -1 : 1))
    
    const result = [...resultGroup, ...resultNoGroup]
    
    console.log(result)

让dict={}
让dictArr=[]
让resultGroup=[]
让resultNoGroup=[]
每小时温度（（项目）=>{
如果（！dict[item.userId]）{
dict[item.userId]=[]
}
dict[item.userId].push（项目）
dict[item.userId].sort（（a，b）=>a.uploadTime-b.uploadTime）
})
for（让我们输入dict）{
dictArr.push（dict[按键]）
}
dictArr.sort（（a，b）=>（a[0]。上载时间>b[0]。上载时间？-1:1））
for（设i=0；ib.上传时间？-1:1））
常量结果=[…结果组，…结果组]
console.log（结果）

这对我来说是意料之中的事！

let testArray = [
    { id: 1133, userId: 101697, uploadTime: '2020-09-14T16:19:16.000Z' },
    { id: 1132, userId: 101543, uploadTime: '2020-09-14T16:17:27.000Z' },
    { id: 1131, userId: 101697, uploadTime: '2020-09-14T16:09:49.000Z' },
    { id: 1130, userId: 101697, uploadTime: '2020-09-14T16:09:16.000Z' },
    { id: 1128, userId: 101543, uploadTime: '2020-09-09T21:48:46.000Z' },
    { id: 1127, userId: 101543, uploadTime: '2020-09-09T21:41:41.000Z' },
    { id: 1126, userId: 101543, uploadTime: '2020-09-09T21:35:37.000Z' },
    { id: 1125, userId: 101543, uploadTime: '2020-09-09T19:41:57.000Z' },
    { id: 1082, userId: 101577, uploadTime: '2020-08-21T15:24:35.000Z' },
    { id: 1049, userId: 101589, uploadTime: '2020-08-15T23:31:42.000Z' },
    { id: 1040, userId: 101589, uploadTime: '2020-08-14T15:04:01.000Z' },
    { id: 1036, userId: 101589, uploadTime: '2020-08-13T00:09:43.000Z' },
    { id: 1035, userId: 101527, uploadTime: '2020-08-12T20:07:34.000Z' },
    { id: 1034, userId: 101612, uploadTime: '2020-08-12T17:33:26.000Z' },
    { id: 996, userId: 101589, uploadTime: '2020-08-11T15:20:11.000Z' },
    { id: 889, userId: 101626, uploadTime: '2020-08-06T14:47:18.000Z' },
    { id: 864, userId: 101589, uploadTime: '2020-08-05T15:23:50.000Z' },
    { id: 863, userId: 101589, uploadTime: '2020-08-05T14:42:14.000Z' },
    { id: 852, userId: 101589, uploadTime: '2020-08-04T18:05:07.000Z' },
    { id: 851, userId: 101589, uploadTime: '2020-08-04T17:57:58.000Z' }
];




testArray = testArray.sort((x, y) => {
    return (y.userId - x.userId);
});

testArray = testArray.filter(currentObj => {
    return (new Date() - new Date(currentObj.uploadTime)) < 24 * 60 * 60 * 1000;
})

    
    
    console.log(testArray);

var uploads=[{“id”：1035，“userId”：101527，“uploadTime”：“2020-08-12T20:07:34.000Z”}，{“id”：1125，“userId”：101543，“uploadTime”：“2020-09-09T19:41:57.000Z”}，{“id”：1126，“userId”：101543，“uploadTime”：“2020-09-09T21:35:37.000Z”}，{“id”：1127，“userId”：101543，“uploadTime”：“2020-09-091:41:000Z”，userId:“uploadTime”：“uploadTime”{“2020-09-09T21:48:46.000Z”{“id”：1132，“用户id”：101543，“上传时间”：“2020-09-14T16:17:27.000Z”}，“id”：1082，“用户id”：101577，“上传时间”：“2020-08-21T15:24:35.000Z”}，“id”：851，“用户id”：101589，“上传时间”：“2020-08-04T17:57:58.000Z”}，“id”：852，“用户id”：101589，“上传时间”：“2020-08-T18:01000z”{“上传时间”：“用户id”：“上传时间”：2020-08-05T14:42:14.000Z“}，{“id”：864，“用户id”：101589，“上传时间”：“2020-08-05T15:23:50.000Z”}，{“id”：996，“用户id”：101589，“上传时间”：“2020-08-11T15:20:11.000Z”}，{“id”：1036，“用户id”：101589，“上传时间”：“2020-08-13T00:09:43.000Z}，{“id”：1040，“用户id”：101589，“上传时间”：“2020-08-14T15:1049”，用户id:“上传时间”：“上传时间”：2020-08-15T23:31:42.000Z“}，{“id”：1034，“用户id”：101612，“上载时间”：“2020-08-12T17:33:26.000Z”}，{“id”：889，“用户id”：101626，“上载时间”：“2020-08-06T14:47:18.000Z”}，{“id”：1130，“用户id”：101697，“上载时间”：“2020-09-14T16:09:16.000Z}，{“id”：1131，“用户id”：101697，“上载时间”：“2020-08-06T16:1499”userId:“上载时间”：“上载时间”：2020-09-14T16:19:16.000Z“}]；
var last24hoursByUserId=
上传
.filter（上传=>
新日期（）-新日期（upload.uploadTime）
<
24*60*60*1000
)
.排序（（a，b）=>
a、 userId+a.uploadTime
现在我想使用它，但仅适用于具有相同用户ID的对象，并且上载时间距离当前时间不到24小时
这一次需要稍微更改排序（请参见代码中的注释）：
如果两个日期都少于24小时，请在用户ID上排序，否则继续上载时间以保留顺序

var数据=[
{id:1133，userId:101697，上传时间：'2020-09-14T16:19:16.000Z'}，
{id:1132，userId:101543，上传时间：'2020-09-14T16:17:27.000Z'}，
{id:1131，userId:101697，上传时间：'2020-09-14T16:09:49.000Z'}，
{id:1130，userId:101697，上传时间：'2020-09-14T16:09:16.000Z'}，
{id:1128，userId:101543，上传时间：'2020-09-09T21:48:46.000Z'}，
{id:1127，userId:101543，上传时间：'2020-09-09T21:41:41.000Z'}，
{id:1126，userId:101543，上传时间：'2020-09-09T21:35:37.000Z'}，
{id:1125，userId:101543，上传时间：'2020-09-09T19:41:57.000Z'}，
{id:1082，userId:101577，上传时间：'2020-08-21T15:24:35.000Z'}，
{id:1049，userId:101589，上传时间：'2020-08-15T23:31:42.000Z'}，
{id:1040，userId:101589，上传时间：'2020-08-14T15:04:01.000Z'}，
{id:1036，userId:101589，上传时间：'2020-08-13T00:09:43.000Z'}，
{id:1035，userId:101527，上传时间：'2020-08-12T20:07:34.000Z'}，
{id:1034，userId:101612，上传时间：'2020-08-12T17:33:26.000Z'}，
{id:996，userId:101589，上传时间：'2020-08-11T15:20:11.000Z'}，
{id:889，userId:101626，上传时间：'2020-08-06T14:47:18.000Z'}，
{id:864，userId:101589，上传时间：'2020-08-05T15:23:50.000Z'}，
{id:863，userId:101589，上传时间：'2020-08-05T14:42:14.000Z'}，
{id:852，userId:101589，上传时间：'2020-08-04T18:05:07.000Z'}，
{id:851，userId:101589，上传时间：'2020-08-04T17:57:58.000Z'}
];
数据排序（函数（a，b）{
//计算与当前日期的差异
var dcta=（new Date（））.getTime（）-（new Date（a.uploadTime））.getTime（）；
var dctb=（new Date（））.getTime（）-（new Date（b.uploadTime））.getTime（）；
//然后在几个小时内转换
风险值h1=（（dctb）/1000）/60）/60；
var h2=（（dctb/1000）/60）/60；
//如果两者都少于24小时。。。。
if（h1这个答案首先解析uploadTime
字符串。然后我检查uploadTime
是否在昨天
之后，并在24小时内将其存储为iswithin24小时
。我将此数据保存在一个单独的对象sortData
中，以避免污染或变异testArray
中的对象

const testArray=[
{id:1133，userId:101697，上传时间：'2020-09-14T16:19:16.000Z'}，
{id:1132，userId:101543，上传时间：'2020-09-14T16:17:27.000Z'}，
{id:1131，userId:101697，上传时间：'2020-09-14T16:09:49.000Z'}，
{id:1130，userId:101697，上传时间：'2020-09-14T16:09:16.000Z'}，
{id:1128，userId:101543，上传时间：'2020-09-09T21:48:46.000Z'}，
{id:1127，userId:101543，上传时间：'2020-09-09T21:41:41.000Z'}，
{id:1126，userId:101543，上传时间：'2020-09-09T21:35:37
[ { id: 1133,
    userId: 101697,
    uploadTime: '2020-09-14T16:19:16.000Z' },
  { id: 1131,
    userId: 101697,
    uploadTime: '2020-09-14T16:09:49.000Z' },
  { id: 1130,
    userId: 101697,
    uploadTime: '2020-09-14T16:09:16.000Z' },
  { id: 1132,
    userId: 101543,
    uploadTime: '2020-09-14T16:17:27.000Z' } ]