在javascript中对周日到周六的对象进行排序 [英] sorting object Sunday to Saturday in javascript
问题描述
大家好,我知道这个问题被问了好几次,但我没有得到我的问题的确切答案.
Hello Everyone i know this question is asked several time but i am not getting exact answer to my question.
// I have array of object like this
data=[
// "sunday": 1, // << sunday is first day of week
{DayOfWeek:"Saturday", TotalCount:30},
{DayOfWeek:"Friday", TotalCount:10},
{DayOfWeek:"Monday", TotalCount:23},
{DayOfWeek:"Sunday", TotalCount:18},
{DayOfWeek:"Wednesday", TotalCount:20}
];
// I need sorted like this:
data=[
// "sunday": 1, // << sunday is first day of week
{DayOfWeek:"Sunday", TotalCount:18},
{DayOfWeek:"Monday", TotalCount:23},
{DayOfWeek:"Wednesday", TotalCount:20},
{DayOfWeek:"Friday", TotalCount:10},
{DayOfWeek:"Saturday", TotalCount:30}
];
我尝试了这个,但无法获得预期的结果.它通过像
I tried this one but I am not able to get the expected result. it is giving me a sorted array by starting alphabet like
周五、周六.
var 排序器 = {//"sunday": 1,//<<星期日是一周的第一天星期日":1,星期一":2,星期二":3,星期三":4,星期四":5,星期五":6,星期六":7}
var sorter = { // "sunday": 1, // << sunday is first day of week "sunday": 1, "monday": 2, "tuesday": 3, "wednesday": 4, "thursday": 5, "friday": 6, "saturday": 7 }
var result= data.sort(function sortByDay(a, b) {
var day1 = a.DayOfWeek.toLowerCase();
var day2 = b.DayOfWeek.toLowerCase();
return sorter[day1] > sorter[day2];
});
请帮助我,提前致谢.
推荐答案
您可以使用订单的对象对其进行排序,就像您已经拥有的那样,但您需要区别
You can sort it with an object for the order, as you already had, but you need the difference
return order[a.DayOfWeek] - order[b.DayOfWeek];
作为排序回调的返回值.
as a return value for the sort callback.
var data = [{ DayOfWeek: "Saturday", TotalCount: 30 }, { DayOfWeek: "Friday", TotalCount: 10 }, { DayOfWeek: "Monday", TotalCount: 23 }, { DayOfWeek: "Sunday", TotalCount: 18 }, { DayOfWeek: "Wednesday", TotalCount: 20 }],
order = { Sunday: 1, Monday: 2, Tuesday: 3, Wednesday: 4, Thursday: 5, Friday: 6, Saturday: 7 };
data.sort(function (a, b) {
return order[a.DayOfWeek] - order[b.DayOfWeek];
});
document.write('<pre>' + JSON.stringify(data, 0, 4) + '</pre>');
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