convert date format from d/m/yyyy to yyyy-mm-dd in javascript

Question

I am trying to convert a timestamp from d/m/yyyy to yyyy-mm-dd through JavaScript. Here is my code.

        var d = new Date();
        d.setDate(d.getDate()-5);
        temp = d.toLocaleString({minimumIntegerDigits: 2, useGrouping:false}).split(',')[0].split("/").reverse().join("-");
        console.log(temp)

I am getting output like this 2016-5-5, but what I am suppose to get is 2016-05-05. I tried options like minimumIntegerDigits with toLocaleString but its not working.

Thanks in advance.

This has got to be the hundredth question about converting dates using JS. Please next time, use google. — evolutionxbox, May 10 '16 at 09:42
You're not really trying to convert *from* a particular format, you just want to get a date object as a string in the yyyy-mm-dd format. I wouldn't use `toLocaleString()` options, because not all browsers support that. — nnnnnn, May 10 '16 at 09:43

gurvinder372 · Answer 1 · 2016-05-10T09:44:13.887

0

try this

d.toLocaleString().split(',')[0].split("/").map( function(val, index, arr){ 
   if (index < arr.length - 1) 
   { 
     return ("0" + val).slice(-2); 
   } 
   return val;
}).reverse().join("-");

DEMO

var d = new Date();
d.setDate(d.getDate() - 5);

var output = d.toLocaleString().split(',')[0].split("/").map(function(val, index, arr) {
  if (index < arr.length - 1) {
    return ("0" + val).slice(-2);
  }
  return val;
}).reverse().join("-");

alert( output )

edited May 10 '16 at 09:44

answered May 10 '16 at 09:40

gurvinder372

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This gives me `2017-21-07` on my PC today! – Old Geezer Jul 26 '17 at 03:20
What is the system date on your desktop? – gurvinder372 Jul 26 '17 at 03:34
As seen as the date/time of my comment. It is now 2017-07-26T03:36Z. – Old Geezer Jul 26 '17 at 03:36

score 0 · Answer 2 · edited May 23 '17 at 11:59

Use this

Date.prototype.yyyymmdd = function() {
   var yyyy = this.getFullYear().toString();
   var mm = (this.getMonth()+1).toString(); // getMonth() is zero-based
   var dd  = this.getDate().toString();
   return yyyy + '-' + (mm[1]?mm:"0"+mm[0])+ '-' + (dd[1]?dd:"0"+dd[0]); // padding
  };

d = new Date();
d.yyyymmdd();

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convert date format from d/m/yyyy to yyyy-mm-dd in javascript

2 Answers2