如何使用多个datetime列对javascript数组进行排序_Javascript

如何使用多个datetime列对javascript数组进行排序

javascript

如何使用多个datetime列对javascript数组进行排序,javascript,Javascript,给定以下数组： var effectiveDates= [ { actualDate: "2017-08-29", effectiveDate: "2017-01-01", time: "13:22" }, { actualDate: "2017-08-29", effectiveDate: "2017-01-01", time: "11:33" }, {

给定以下数组：

var effectiveDates= [
    {
        actualDate: "2017-08-29",
        effectiveDate: "2017-01-01",
        time: "13:22"
    },
    {
        actualDate: "2017-08-29",
        effectiveDate: "2017-01-01",
        time: "11:33"
    },
    {
        actualDate: "2017-08-29",
        effectiveDate: "2017-01-01",
        time: "10:57"
    },
    {
        actualDate: "2016-06-17",
        effectiveDate: "2016-01-01",
        time: "10:26"
    },
    {
        actualDate: "2016-06-17",
        effectiveDate: "2016-01-01",
        time: "10:03"
    },
    {
        actualDate: "2015-12-03",
        effectiveDate: "2015-01-01",
        time: "16:54"
    },
    {
        actualDate: "2014-07-07",
        effectiveDate: "2014-05-01",
        time: "10:47"
    },
    {
        actualDate: "2014-07-07",
        effectiveDate: "2014-05-01",
        time: "10:41"
    },
    {
        actualDate: "2014-07-07",
        effectiveDate: "2014-01-01",
        time: "10:36"
    },
    {
        actualDate: "2014-07-07",
        effectiveDate: "2014-01-01",
        time: "10:36"
    }
]

我试图根据

actualDate

或

effectiveDate

降序（或根据顺序升序）然后按时间（也根据所需顺序升序或降序）对数据进行排序。我遇到的问题是日期顺序正确，但

time

属性顺序不正确。我正在使用moment.js进行日期和时间解析

这就是我迄今为止所做的尝试：

var desc = true; //false;
effectiveDates.sort(function (a, b) {
            if (desc) {
                if (moment(a.actualDate) === moment(b.actualDate)) {
                    return (moment(b.time) - moment(a.time));
                } else if (moment(a.actualDate) < moment(b.actualDate)) {
                    return 1;
                } else if (moment(a.actualDate) > moment(b.actualDate)) {
                    return -1;
                }
            }
            else {
                if (moment(a.actualDate) === moment(b.actualDate)) {
                    return (moment(b.time) - moment(a.time));
                } else if (moment(a.actualDate) > moment(b.actualDate)) {
                    return 1;
                } else if (moment(a.actualDate) < moment(b.actualDate)) {
                    return -1;
                }
            }
        });

var desc=true//虚假的；
effectiveDates.sort（函数（a，b）{
如果（描述）{
if（力矩（a.实际值）==力矩（b.实际值））{
返回（时刻（b.time）-时刻（a.time））；
}否则如果（力矩（a.实际值）<力矩（b.实际值））{
返回1；
}否则，如果（力矩（a.实际值）>力矩（b.实际值））{
返回-1；
}
}
否则{
if（力矩（a.实际值）==力矩（b.实际值））{
返回（时刻（b.time）-时刻（a.time））；
}否则，如果（力矩（a.实际值）>力矩（b.实际值））{
返回1；
}否则如果（力矩（a.实际值）<力矩（b.实际值））{
返回-1；
}
}
});

出于某种原因，当按

effectiveDate

升序或降序对数据排序时，

时间的排序是正确的。
但是当按实际日期
对数据进行排序时，同时按升序或降序排序时，时间
数据不正确
任何帮助都将不胜感激。
代替
return (moment(b.time) - moment(a.time));

使用：
您需要告诉矩量.js输入字符串是“时间”字符串。
三个问题：
使用==
来比较两个时刻将不起作用；他们永远不会平等。矩提供了一个.isname
函数来执行此操作

要解析时间，您需要提供一个格式字符串，在本例中为“HH:mm”
两次减法需要在升序和降序之间反向进行。把订单翻过来就行了
请参阅下面的工作版本，并附上说明更改的注释：
function sorted(desc) {
    return effectiveDates.sort(function (a, b) {
        if (desc) {
            // Use .isSame to compare two moments:
            if (moment(a.actualDate).isSame(moment(b.actualDate))) {
                // Provide a format to moment so it knows how to parse the times:
                return moment(b.time, "HH:mm") - moment(a.time, "HH:mm");
            } else if (moment(a.actualDate) < moment(b.actualDate)) {
                return 1;
            } else if (moment(a.actualDate) > moment(b.actualDate)) {
                return -1;
            }
        }
        else {
            if (moment(a.actualDate).isSame(moment(b.actualDate))) {
                // Reverse the order of the subtraction when sorting ascending:
                return moment(a.time, "HH:mm") - moment(b.time, "HH:mm");
            } else if (moment(a.actualDate) > moment(b.actualDate)) {
                return 1;
            } else if (moment(a.actualDate) < moment(b.actualDate)) {
                return -1;
            }
        }
    });
}

是:
更新
更简单的比较器功能：
function sorted(desc) {
    return effectiveDates.sort(function (a, b) {
        // Combine the date and time and parse them together.
        var ret = moment(a.actualDate + " " + a.time) - moment(b.actualDate + " " + b.time);

        // Flip the sign if we're sorting descending.
        if (desc) {
            ret *= -1;
        }

        return ret;
    });
}

与其调用moment（a.actualDate）
大量时间，不如将它们存储在一个变量中：aDate=moment（a.actualDate）等。在这两种情况下，您的时间比较是在同一个方向上进行的。也不需要为else。。。。您可以只设置一组，然后根据描述翻转-1或1。
console.log("DESCENDING:");
console.log(sorted(true));

console.log("ASCENDING:");
console.log(sorted(false));

DESCENDING:
[ { actualDate: '2017-08-29',
    effectiveDate: '2017-01-01',
    time: '13:22' },
  { actualDate: '2017-08-29',
    effectiveDate: '2017-01-01',
    time: '11:33' },
  { actualDate: '2017-08-29',
    effectiveDate: '2017-01-01',
    time: '10:57' },
  { actualDate: '2016-06-17',
    effectiveDate: '2016-01-01',
    time: '10:26' },
  { actualDate: '2016-06-17',
    effectiveDate: '2016-01-01',
    time: '10:03' },
  { actualDate: '2015-12-03',
    effectiveDate: '2015-01-01',
    time: '16:54' },
  { actualDate: '2014-07-07',
    effectiveDate: '2014-05-01',
    time: '10:47' },
  { actualDate: '2014-07-07',
    effectiveDate: '2014-05-01',
    time: '10:41' },
  { actualDate: '2014-07-07',
    effectiveDate: '2014-01-01',
    time: '10:36' },
  { actualDate: '2014-07-07',
    effectiveDate: '2014-01-01',
    time: '10:36' } ]
ASCENDING:
[ { actualDate: '2014-07-07',
    effectiveDate: '2014-01-01',
    time: '10:36' },
  { actualDate: '2014-07-07',
    effectiveDate: '2014-01-01',
    time: '10:36' },
  { actualDate: '2014-07-07',
    effectiveDate: '2014-05-01',
    time: '10:41' },
  { actualDate: '2014-07-07',
    effectiveDate: '2014-05-01',
    time: '10:47' },
  { actualDate: '2015-12-03',
    effectiveDate: '2015-01-01',
    time: '16:54' },
  { actualDate: '2016-06-17',
    effectiveDate: '2016-01-01',
    time: '10:03' },
  { actualDate: '2016-06-17',
    effectiveDate: '2016-01-01',
    time: '10:26' },
  { actualDate: '2017-08-29',
    effectiveDate: '2017-01-01',
    time: '10:57' },
  { actualDate: '2017-08-29',
    effectiveDate: '2017-01-01',
    time: '11:33' },
  { actualDate: '2017-08-29',
    effectiveDate: '2017-01-01',
    time: '13:22' } ]

function sorted(desc) {
    return effectiveDates.sort(function (a, b) {
        // Combine the date and time and parse them together.
        var ret = moment(a.actualDate + " " + a.time) - moment(b.actualDate + " " + b.time);

        // Flip the sign if we're sorting descending.
        if (desc) {
            ret *= -1;
        }

        return ret;
    });
}