Question

months = ['Apr','Jan','Jul','Jun']
values = ['2','4','10','1']

如何按字母顺序对它们进行排序，但如下所示进行自定义，以便排序的数组应为：

sMonths = ['Jan','Apr','Jun','Jul']
sValues = ['4','2','1','10']

我猜它应该用map方法完成？我在这里查了一下：https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/sort

但我真的不明白该怎么做。

Answer 1

将月份和值组合到一个数组中，对其进行排序，然后提取月份和值。

System.dll

Answer 2

您最好将月份存储为ID（1-> 12），最后将其转换为月份名称，但Andy E回复会在Sort day/month array in Javascript上填写您的需求

(function () { 
    // Set up our variables, 2 date objects and a map of month names/numbers
    var ad = new Date(),
        bd = new Date(),
        months = {
            Jan: 0, Feb: 1, Mar: 2, Apr: 3, May: 4, Jun: 5,
            Jul: 6, Aug: 7, Sep: 8, Oct: 9, Nov:10, Dec:12
        };

    MyArray.sort(function (a,b) {
        // Split the text into [ date, month ]
        var as = a.split(' '),
            bs = b.split(' ');

        // Set the Date() objects to the dates of the items
        ad.setDate(as[0]);
        ad.setMonth(months[as[1]]);
        bd.setDate(bs[0]);
        bd.setMonth(months[bs[1]]);

        /* A math operation converts a Date object to a number, so 
           it's enough to just return date1 - date2 */
        return ad - bd;
    });
})();
//-> ["09 Jun", "13 Jun", "30 Jun", "13 Aug", "25 Aug"]

Javascript自定义排序

2 个答案: