Javascript date - Leading 0 for days and months where applicable

Question

Is there a clean way of adding a 0 in front of the day or month when the day or month is less than 10:

var myDate = new Date();
var prettyDate =(myDate.getFu         


        

Answer 1

var myDate = new Date();
var m = myDate.getMonth() + 1;
var d = myDate.getDate();
m = m > 9 ? m : "0"+m;
d = d > 9 ? d : "0"+d;
var prettyDate =(myDate.getFullYear() +'-'+ m) +'-'+ d;

...and a sample: http://jsfiddle.net/gFkaP/

Answer 2

For Month, var month = ("0" + (myDate.getMonth() + 1)).slice(-2);

For Day, var day = ("0" + (myDate.getDate() + 1)).slice(-2);

Answer 3

You will have to manually check if it needs a leading zero and add it if necessary...

var m = myDate.getMonth();
var d =  myDate.getDate();

if (m < 10) {
    m = '0' + m
}

if (d < 10) {
    d = '0' + d
}

var prettyDate = myDate.getFullYear() +'-'+ m +'-'+ d;

Answer 4

The format you seem to want looks like ISO. So take advantage of toISOString():

var d = new Date();
var date = d.toISOString().slice(0,10); // "2014-05-12"

Answer 5

Unfortunately there's no built-in date-format in javascript. Either use a existing library (example http://blog.stevenlevithan.com/archives/date-time-format) or build your own method for adding a leading zero.

var addLeadingZeroIfNeeded = function addLeadingZeroIfNeeded(dateNumber) {
        if (String(dateNumber).length === 1) {
            return '0' + String(dateNumber);
        }

        return String(dateNumber);
    },
    myDate = new Date(),
    prettyDate;

prettyDate = myDate.getFullYear() + '-' + addLeadingZeroIfNeeded(myDate.getMonth()) + '-' + addLeadingZeroIfNeeded(myDate.getDate());

EDIT

As Alnitak said, keep in mind that month i JavaScript starts on 0 not 1.

Answer 6

You can try like this

For day:

("0" + new Date().getDate()).slice(-2)

For month:

("0" + (new Date().getMonth() + 1)).slice(-2)

For year:

new Date().getFullYear();