I have an array of dates as below:
var unavailableDates = ["31-5-2014", "1-6-2014", "2-6-2014", "3-6-2014", "26-5-2014", "27-5-2014", "28-5-2014", "29-5-2014"];
How can I sort this array without changing the date format?
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If you store them as year first, it'd be simple. Can you translate it to that format or simply change the code that returns this array?iamdev– iamdev2014-05-20 06:01:38 +00:00Commented May 20, 2014 at 6:01
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This is similar to this question: stackoverflow.com/questions/5002848/…iamdev– iamdev2014-05-20 06:02:56 +00:00Commented May 20, 2014 at 6:02
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@iamdev will it work for dates ?Leo T Abraham– Leo T Abraham2014-05-20 06:03:38 +00:00Commented May 20, 2014 at 6:03
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You would have to specify in your custom sort function (that you write) how you want it to compare 2 strings. Then it will go through using those rules and sort the list. I'm pretty sure it's the only way in your case.iamdev– iamdev2014-05-20 06:04:44 +00:00Commented May 20, 2014 at 6:04
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Have a look at : stackoverflow.com/questions/10123953/… and stackoverflow.com/questions/7555025/…A H K– A H K2014-05-20 06:18:28 +00:00Commented May 20, 2014 at 6:18
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4 Answers
Hope it would be work for you, try this code
var unavailableDates = ["31-5-2014", "1-6-2014", "2-6-2014",
"3-6-2014", "26-5-2014", "27-5-2014", "28-5-2014", "29-5-2014"];
function SortByDate(a, b){
var amyDate = a.split("-");
var aNewDate=new Date(amyDate[1]+","+amyDate[0]+","+amyDate[2]).getTime();
var bmyDate = b.split("-");
var bNewDate=new Date(bmyDate[1]+","+bmyDate[0]+","+bmyDate[2]).getTime();
return ((aNewDate < bNewDate) ? -1 : ((aNewDate > bNewDate) ? 1 : 0));
}
console.log(unavailableDates.sort(SortByDate));
Comments
Code speak for itself.
var unavailableDates = ["31-5-2014", "1-6-2014", "2-6-2014", "3-6-2014", "26-5-2014", "27-5-2014", "28-5-2014", "29-5-2014"];
unavailableDates = unavailableDates
.map(function (val, idx) {
var arr = val.split('-');
return new Date(arr[2], arr[1] - 1, arr[0]);
})
.sort(function (x, y) {
return x > y
});
console.log(unavailableDates);
2 Comments
Scimonster
@LeoTAbraham the
Date object's months are 0 based. You'd have to do arr[1]-1.
Leo T Abraham
I have already tried it. But right now, June 2 is coming first jsfiddle.net/jXP5D/1
var eventDates = ["31-5-2014", "1-6-2014", "2-6-2014", "3-6-2014", "26-5-2014", "27-5-2014", "28-5-2014", "29-5-2014"];
var result = data.sort(function (a, b){ new Date(a.eventDates).getTime() - new Date(b.eventDates).getTime()
});
console.log(result);
2 Comments
DCCoder
Generally, answers are much more helpful if they include an explanation of what the code is intended to do, and why that solves the problem without introducing others.
Jeff Mergler
Typo:
data.sort should be eventDates.sortThis alternative should work fine and does not change the date format at all. The sort function uses date format YYYYMMDD just for sorting only but leaves the original dates intact.
var unavailableDates = ["31-5-2014", "1-6-2014", "2-6-2014", "3-6-2014", "26-5-2014", "27-5-2014", "28-5-2014", "29-5-2014"];
unavailableDates.sort(function( a, b ) {
var sA = a.split( '-' ).map(function(v,i) { return (i<2)?("0"+v).substr(-2):v; }).reverse().join('');
var sB = b.split( '-' ).map(function(v,i) { return (i<2)?("0"+v).substr(-2):v; }).reverse().join('');
return sA > sB;
})
console.log( unavailableDates );
