Javascript convert dates

Question

I am getting this "20131218" date/time value from an API result.

What I want to do is convert this date into something like this "2013-12-18". I know this is very easy in PHP by simply doing this code:

echo date("Y-m-d",strtotime('20131218'));

output: 2013-12-18

This is what I tried in javascript:

var myDate = new Date("20131218");
console.log(myDate);

But the output is Date{ Invalid Date } so obviously this is wrong.

My question here what is the equivalent of strtotime in javascript? or if there's no equivalent, how would I convert this value as my expected result(2013-12-18) using javascript?

Your help will be greatly appreciated!

Thanks! :)

Check out momentjs.com

cyberwombat
– cyberwombat

2014-01-17 06:22:24 +00:00
Commented Jan 17, 2014 at 6:22 — cyberwombat
– cyberwombat, Commented Jan 17, 2014 at 6:22

Coder · Accepted Answer · 2014-01-17 06:14:46Z

1

The value is invalid to convert it to date. So either from your PHP code send it as a proper format like 20131218

Or convert the value you get in your Javascript to similar kind of format.

var dateVal="20131218"; 
/*
 // If it's number  *******   //
var numdate=20131218;
var dateVal=numdate.toString();
*/

var year=dateVal.substring(0,4);
var mnth=dateVal.substring(4,6);
var day=dateVal.substring(6,8);
var dateString=year+"-"+mnth+"-"+day;


var actualDate = new Date(dateString); 
alert(actualDate);

JSFIDDLE DEMO

answered Jan 17, 2014 at 6:14

Coder

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Comments

RobG · Accepted Answer · 2014-01-17 06:43:03Z

1

Javascript has a Date.parse method but the string you have is not suitable to pass to it. You don't really need to create a date object just to format a string. Consider:

function formatDateStr(s) {
    s = s.match(/\d\d/g);
    return s[0] + s[1] + '-' + s[2] + '-' + s[3];
}

alert(formatDateStr('20131218')); // '2013-12-18'

If you wish to convert it to a date object, then:

function parseDateStr(s) {
    s = s.match(/\d\d/g);
    return new Date(s[0] + s[1], --s[2], s[3]);
}

answered Jan 17, 2014 at 6:43

RobG

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Comments

Vinayak Pingale · Accepted Answer · 2014-01-17 05:52:36Z

0

The reason why it is showing Invalid date is, it wants it to be in format

Following format: YYYY-MM-DD or YYYY-MM-DDTHH:MM:SS

If you breakdown your string using following format just add dash at relevant places then you are good to go and use newDate.

1.    var myDate = new Date("2013-12-18"); 
      alert(myDate);

2.    var myDate = new Date(2013,12,18);

Eventually you can modify your string manipulate it and use it in aforementioned format.

answered Jan 17, 2014 at 5:52

Vinayak Pingale

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