排序多维对象数组
我有多维对象数组，我想按日期排序。下面我添加了我试图做到这一点的方法之一，但是失败了。有没有简单的方法可以在不循环的情况下对其进行排序？
let araaaay = [
[{
"dateTime": "2020-01-22T00:00:00",
"date": "2020 01 22",
"hour": 0,
"postsCount": 1,
"shift": "None"
},
],
[{
"dateTime": "2020-01-19T00:00:00",
"date": "2020 01 19",
"hour": 0,
"postsCount": 2,
"shift": "A"
}, {
"dateTime": "2020-01-19T23:00:00",
"date": "2020 01 19",
"hour": 23,
"postsCount": 2,
"shift": "None"
}],
[{
"dateTime": "2020-01-20T00:00:00",
"date": "2020 01 20",
"hour": 0,
"postsCount": 0,
"shift": "None"
}, {
"dateTime": "2020-01-20T01:00:00",
"date": "2020 01 20",
"hour": 1,
"postsCount": 0,
"shift": "None"
}, {
"dateTime": "2020-01-20T17:00:00",
"date": "2020 01 20",
"hour": 17,
"postsCount": 4,
"shift": "None"
}, {
"dateTime": "2020-01-20T18:00:00",
"date": "2020 01 20",
"hour": 18,
"postsCount": 4,
"shift": "None"
} ],
[{
"dateTime": "2020-01-18T00:00:00",
"date": "2020 01 18",
"hour": 0,
"postsCount": 0,
"shift": "A"
}, {
"dateTime": "2020-01-18T03:00:00",
"date": "2020 01 18",
"hour": 3,
"postsCount": 4,
"shift": "A"
}, {
"dateTime": "2020-01-18T04:00:00",
"date": "2020 01 18",
"hour": 4,
"postsCount": 8,
"shift": "A"
}, {
"dateTime": "2020-01-18T05:00:00",
"date": "2020 01 18",
"hour": 5,
"postsCount": 10,
"shift": "B"
}, {
"dateTime": "2020-01-18T06:00:00",
"date": "2020 01 18",
"hour": 6,
"postsCount": 8,
"shift": "B"
}, {
"dateTime": "2020-01-18T07:00:00",
"date": "2020 01 18",
"hour": 7,
"postsCount": 2,
"shift": "B"
},
{
"dateTime": "2020-01-18T08:00:00",
"date": "2020 01 18",
"hour": 8,
"postsCount": 0,
"shift": "B"
},
慕后森2回答
-
紫衣仙女
看起来每个组在同一天都有不同的条目，但时间不同。这意味着你需要两种不同的排序：对组内的对象进行排序的内部（按 ）和对组进行排序的外部排序（按其任何条目的 或 排序）：dateTimedatedateTimeconst arr = [ [{ "dateTime": "2020-01-22T00:00:00", "date": "2020 01 22", "hour": 0, "postsCount": 1, "shift": "None" }], [{ "dateTime": "2020-01-19T00:00:00", "date": "2020 01 19", "hour": 0, "postsCount": 2, "shift": "A" }, { "dateTime": "2020-01-19T23:00:00", "date": "2020 01 19", "hour": 23, "postsCount": 2, "shift": "None" }], [{ "dateTime": "2020-01-20T00:00:00", "date": "2020 01 20", "hour": 0, "postsCount": 0, "shift": "None" }, { "dateTime": "2020-01-20T01:00:00", "date": "2020 01 20", "hour": 1, "postsCount": 0, "shift": "None" }, { "dateTime": "2020-01-20T17:00:00", "date": "2020 01 20", "hour": 17, "postsCount": 4, "shift": "None" }, { "dateTime": "2020-01-20T18:00:00", "date": "2020 01 20", "hour": 18, "postsCount": 4, "shift": "None" }], [{ "dateTime": "2020-01-18T00:00:00", "date": "2020 01 18", "hour": 0, "postsCount": 0, "shift": "A" }, { "dateTime": "2020-01-18T03:00:00", "date": "2020 01 18", "hour": 3, "postsCount": 4, "shift": "A" }, { "dateTime": "2020-01-18T04:00:00", "date": "2020 01 18", "hour": 4, "postsCount": 8, "shift": "A" }, { "dateTime": "2020-01-18T05:00:00", "date": "2020 01 18", "hour": 5, "postsCount": 10, "shift": "B" }, { "dateTime": "2020-01-18T06:00:00", "date": "2020 01 18", "hour": 6, "postsCount": 8, "shift": "B" }, { "dateTime": "2020-01-18T07:00:00", "date": "2020 01 18", "hour": 7, "postsCount": 2, "shift": "B" }, { "dateTime": "2020-01-18T08:00:00", "date": "2020 01 18", "hour": 8, "postsCount": 0, "shift": "B" }], [{ "dateTime": "2020-01-21T22:00:00", "date": "2020 01 21", "hour": 22, "postsCount": 0, "shift": "None" }, { "dateTime": "2020-01-21T23:00:00", "date": "2020 01 21", "hour": 23, "postsCount": 0, "shift": "None" }], [{ "dateTime": "2020-01-23T00:00:00", "date": "2020 01 23", "hour": 0, "postsCount": 0, "shift": "None" }, { "dateTime": "2020-01-23T07:00:00", "date": "2020 01 23", "hour": 7, "postsCount": 1, "shift": "None" }, { "dateTime": "2020-01-23T21:00:00", "date": "2020 01 23", "hour": 21, "postsCount": 1, "shift": "None" }],];// Inner sort ("by time"):let sorted = arr.map((group) => { return group.sort((a, b) => { return new Date(a.dateTime) - new Date(b.dateTime); });});// Outer sort ("by day"):sorted = arr.sort((a, b) => { return new Date(a[0].dateTime) - new Date(b[0].dateTime);});console.log(sorted.map(item => item.map(item => item.dateTime))).as-console-wrapper { max-height: 100% !important;} -
哈士奇WWW
您需要在以下位置使用阵列平面：const araaaay = [ [ { dateTime: '2020-01-22T00:00:00', date: '2020 01 22', hour: 0, postsCount: 1, shift: 'None' } ] , [ { dateTime: '2020-01-19T00:00:00', date: '2020 01 19', hour: 0, postsCount: 2, shift: 'A' } , { dateTime: '2020-01-19T23:00:00', date: '2020 01 19', hour: 23, postsCount: 2, shift: 'None' } ] , [ { dateTime: '2020-01-20T00:00:00', date: '2020 01 20', hour: 0, postsCount: 0, shift: 'None' } , { dateTime: '2020-01-20T01:00:00', date: '2020 01 20', hour: 1, postsCount: 0, shift: 'None' } , { dateTime: '2020-01-20T17:00:00', date: '2020 01 20', hour: 17, postsCount: 4, shift: 'None' } , { dateTime: '2020-01-20T18:00:00', date: '2020 01 20', hour: 18, postsCount: 4, shift: 'None' } ] , [ { dateTime: '2020-01-18T00:00:00', date: '2020 01 18', hour: 0, postsCount: 0, shift: 'A' } , { dateTime: '2020-01-18T03:00:00', date: '2020 01 18', hour: 3, postsCount: 4, shift: 'A' } , { dateTime: '2020-01-18T04:00:00', date: '2020 01 18', hour: 4, postsCount: 8, shift: 'A' } , { dateTime: '2020-01-18T05:00:00', date: '2020 01 18', hour: 5, postsCount: 10, shift: 'B' } , { dateTime: '2020-01-18T06:00:00', date: '2020 01 18', hour: 6, postsCount: 8, shift: 'B' } , { dateTime: '2020-01-18T07:00:00', date: '2020 01 18', hour: 7, postsCount: 2, shift: 'B' } , { dateTime: '2020-01-18T08:00:00', date: '2020 01 18', hour: 8, postsCount: 0, shift: 'B' } , { dateTime: '2020-01-21T22:00:00', date: '2020 01 21', hour: 22, postsCount: 0, shift: 'None' } , { dateTime: '2020-01-21T23:00:00', date: '2020 01 21', hour: 23, postsCount: 0, shift: 'None' } ] , [ { dateTime: '2020-01-23T00:00:00', date: '2020 01 23', hour: 0, postsCount: 0, shift: 'None' } , { dateTime: '2020-01-23T07:00:00', date: '2020 01 23', hour: 7, postsCount: 1, shift: 'None' } , { dateTime: '2020-01-23T21:00:00', date: '2020 01 23', hour: 21, postsCount: 1, shift: 'None' } ] ]const aSorted = araaaay .flat() .sort((a,b)=>new Date(a.dateTime) - new Date(b.dateTime))console.log (aSorted).as-console-wrapper { max-height: 100% !important; }
随时随地看视频慕课网APP
相关分类
JavaScript