Convert date in JavaScript [duplicate]

Question

I need to convert a data from this format 26/03/2017 in this format 2017-03-26, starting from picking data from a form id.

I've tried like this, but I'm lost now.. any help?

var dataform = "26/03/2017";
var dataora = new Date(dataform);


var G = dataora.getDate(dataform);
var M = (dataora.getMonth(dataform) + 1);


if (G < 10)
{
	var mm = "0" + dataora.getDate(dataform);
}
else
{
	var mm = dataora.getDate(dataform);
}

if (M < 10)
{
	var gg = "0" + (dataora.getMonth(dataform) + 1);
}
else
{
	var gg = (dataora.getMonth(dataform) + 1);
}

var aa = dataora.getFullYear(dataform);

var data = aa + "-" + mm + "-" + gg;

console.log(data);
console.log("Year "+aa);
console.log("Month "+mm);
console.log("Day "+gg);

Output is:

2019-03-02

Year 2019
Month 03
Day 02

Where am I wrong?

You are massively overthinking this. var input = "26/03/2017".split('/'); var output = input[2]+'-'+input[1]+'-'+input[0]; — JJJ
– JJJ, Commented Mar 26, 2017 at 17:29

Sagar V · Accepted Answer · 2017-03-26 17:56:48Z

1

Split the date using split function with /.
Reverse it using the reverse function
Then Join it using the join function with -.

That's it.

var date="26/03/2017";
date=date.split("/").reverse().join("-");
console.log(date);

answered Mar 26, 2017 at 17:56

Sagar V

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1 Comment

Giovanni De Stefanis Over a year ago

Great, it worked! Thanks

Community · Accepted Answer · 2017-05-23 12:10:14Z

0

Where am I wrong?

Don't use the Date constructor (or Date.parse) to parse strings, as it's largely implementation dependent and varies across hosts. See Why does Date.parse give incorrect results?

Per Sagar V's answer, just reformat the string.

edited May 23, 2017 at 12:10

CommunityBot

11 silver badge

answered Mar 26, 2017 at 20:31

RobG

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