Convert number into date using javascript

Question

I have date in without "/" in text field and it is in mm/dd/yy format. We received input in this format 03292014. I want to get month,date and year from this number like 03/29/2014

var m = new Date(3292014*1000)

console.log(m.toGMTString())

There are so many answers about creating Date objects from strings and formatting a date string from a Javascript Date object here on SO. You should try to search a little harder, you can't miss them. — Xotic750
– Xotic750, Commented Mar 1, 2014 at 15:22
On way could be: use a regex to get the parts, build the date out of them. — Edwin Dalorzo
– Edwin Dalorzo, Commented Mar 1, 2014 at 15:24

Community · Accepted Answer · 2017-05-23 12:07:17Z

4

You could do this :

var m = '03292014'.match(/(\d\d)(\d\d)(\d\d\d\d)/);
var d = new Date(m[3], m[1] - 1, m[2]);

Or convert the input into a standard "YYYY-MM-DD" format :

var d = new Date('03292014'.replace(
    /(\d\d)(\d\d)(\d\d\d\d)/, '$3-$1-$2'
));

Specs : http://es5.github.io/#x15.9.1.15.

According to Xotic750's comment, in case you just want to change the format :

var input = '03292014';
input = input.replace(
    /(\d\d)(\d\d)\d\d(\d\d)/, '$1/$2/$3'
);
input; // "03/29/14"

edited May 23, 2017 at 12:07

CommunityBot

11 silver badge

answered Mar 1, 2014 at 15:33

user1636522

Sign up to request clarification or add additional context in comments.

Comments

Guffa · Accepted Answer · 2014-03-01 15:57:16Z

1

Get the components from the input, then you can create a Date object from them. Example:

var input = '03292014';

var year = parseInt(input.substr(4), 10);
var day = parseInt(input.substr(2, 2), 10);
var month = parseInt(input.substr(0, 2), 10);

var date = new Date(year, month - 1, day);

edited Mar 1, 2014 at 15:57

answered Mar 1, 2014 at 15:25

Guffa

703k111 gold badges760 silver badges1k bronze badges

6 Comments

Fr0zenFyr Over a year ago

Well, this is the simplest way to do this but considering that OP may get some other format in future, it is better to write a function that takes input as input string, input format and output format. Just a thought, usually that is my approach. Cheers!

Xotic750 Over a year ago

If the OP is just looking to format 03292014 to 03/29/2014 then there isn't actually any need to use Date at all. A splice or slice only solution would be adequate. :)

Guffa Over a year ago

@Xotic750: Yes, if that is what the OP wants to do. The code example in the question suggests that a Date object is the desired result.

Xotic750 Over a year ago

I think you are just far too kind. ;)

user1636522 Over a year ago

@Xotic750 The title is very misleading here.

|

Collectives™ on Stack Overflow

Convert number into date using javascript

2 Answers 2

Comments

6 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

6 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related