Question

我有一个数组。我必须按给定的注册日期以相反的顺序对数组进行排序。

下面是我编写的函数

 getDevicesList(devices, user) {
    let activeDevices = [];
    const pendingDevices = [];
    const historyDevices = [];
    devices && devices.forEach((device) => {
        if(device.get("status") === DEVICES_STATUS.INACTIVE && !UserUtils.isStatusArchived(user.get("status"))) {
            pendingDevices.push(device);
        } else if(device.get("isRecentlyUsed")) {
            activeDevices.push(device);
        } else {
            historyDevices.push(device);
        }
    });

    var sorted_meetings = historyDevices.sort((a,b) => new Date(a.enrolledDate) < new Date(b.enrolledDate));
    console.log(sorted_meetings);

    activeDevices = [...pendingDevices, ...activeDevices];
    const noDevices = activeDevices.length === 0 && historyDevices.length === 0;
    return { activeDevices, historyDevices, noDevices };
}

我试图将JSON日期转换为正常日期。但这对我没有用。

var sorted_meetings = historyDevices.sort((a,b) => {           
  var dateA = moment(a.enrolledDate).format("dddd, MMMM Do YYYY, h:mm:ss a");
  var dateB = moment(b.enrolledDate).format("dddd, MMMM Do YYYY, h:mm:ss a");
  return new Date(dateA).getTime() - new Date(dateB).getTime()
}).reverse();

这是我必须排序的数组。

historyDevices : (4) [Map, Map, Map, Map]
  0: Map
     size: 8
    __altered: false
    __hash: undefined
    __ownerID: undefined
    _root: ArrayMapNode
     entries: Array(8)
      0: (2) ["id", 81054566]
      1: (2) ["make", "iPhone"]
      2: (2) ["model", 5]
      3: (2) ["status", "ACTIVE"]
      4: (2) ["nickName", "abc abc"]
      5: (2) ["lastUsedDate", "2018-04-13T18:41:59.193Z"]
      6: (2) ["enrolledDate", "2019-03-23T03:54:19.620Z"]
      7: (2) ["isRecentlyUsed", false]
     length: 8
     __proto__: Array(0)
      ownerID: OwnerID {}
     __proto__: Object
     __proto__: KeyedIterable
1: Map {size: 8, _root: ArrayMapNode, __ownerID: undefined, __hash: undefined, __altered: false}
2: Map {size: 8, _root: ArrayMapNode, __ownerID: undefined, __hash: undefined, __altered: false}
3: Map {size: 8, _root: ArrayMapNode, __ownerID: undefined, __hash: undefined, __altered: false}
length: 4
__proto__: Array(0)

结果：我希望所有的数组元素都应该按相反的enrolledDate顺序出现。

Answer 1

如何？

var sorted_meetings = historyDevices.sort((a,b) => new Date(b.enrolledDate) - new Date(a.enrolledDate));

如何按JSON日期对数组进行排序

1 个答案: