Sort date in Javascript

Question

I have retrieve from ajax query a news feed. In this object, there is a date in this format :

Wed, 22 May 2013 08:00:00 GMT

I would like to

Answer 1

sorting dates ascending or descending
times = ["01-09-2013", "01-09-2013", "27-08-2013", "27-08-2013", "28-08-2013", "28-08-2013", "28-08-2013", "28-08-2013", "29-08-2013", "29-08-2013", "30-08-2013", "30-08-2013", "31-08-2013", "31-08-2013"]
function dmyOrdA(a,b){ return myDate(a) - myDate(b);}
function dmyOrdD(a,b){ return myDate(b) - myDate(a);}
function myDate(s){var a=s.split(/-|\//); return new Date(a[2],a[1]-1,a[0]);}

times.sort(dmyOrdA);
console.log(times)

Answer 2

You may also use a underscore/lodash sortBy

Here's using underscore js to sort date:

 var log = [{date: '2016-01-16T05:23:38+00:00', other: 'sample'}, 
            {date: '2016-01-13T05:23:38+00:00',other: 'sample'}, 
            {date: '2016-01-15T11:23:38+00:00', other: 'sample'}];

  console.log(_.sortBy(log, 'date'));

• http://underscorejs.org/#sortBy
• https://lodash.com/docs#sortBy

Answer 3

1) You can't sort objects. The order of the object's keys is arbitrary.

2) If you want to sort an array by date (and they are already date obects), do the following:

array.sort ( function (date1, date2){
     return date1 - date2
});

If you first need to convert them to date objects, do the following (following the data structure according to your comment below):

array.sort ( function (a, b){
       return new Date(a.pubDate) - new Date(b.pubDate);
});

Example