How do I get Month and Date of JavaScript in 2 digit format?

Solution 1:

("0" + this.getDate()).slice(-2)

for the date, and similar:

("0" + (this.getMonth() + 1)).slice(-2)

for the month.

Solution 2:

If you want a format like "YYYY-MM-DDTHH:mm:ss", then this might be quicker:

var date = new Date().toISOString().substr(0, 19);
// toISOString() will give you YYYY-MM-DDTHH:mm:ss.sssZ

Or the commonly used MySQL datetime format "YYYY-MM-DD HH:mm:ss":

var date2 = new Date().toISOString().substr(0, 19).replace('T', ' ');

I hope this helps

Solution 3:

Why not use padStart ?

padStart(targetLength, padString) where

• targetLength is 2
• padString is 0

// Source: https://stackoverflow.com/a/50769505/2965993

var dt = new Date();

year  = dt.getFullYear();
month = (dt.getMonth() + 1).toString().padStart(2, "0");
day   = dt.getDate().toString().padStart(2, "0");

console.log(year + '/' + month + '/' + day);

This will always return 2 digit numbers even if the month or day is less than 10.

Notes:

• This will only work with Internet Explorer if the js code is transpiled using babel.
• getFullYear() returns the 4 digit year and doesn't require padStart.
• getMonth() returns the month from 0 to 11.
  • 1 is added to the month before padding to keep it 1 to 12.
• getDate() returns the day from 1 to 31.
  • The 7th day will return 07 and so we do not need to add 1 before padding the string.

Solution 4:

Example for month:

function getMonth(date) {
  var month = date.getMonth() + 1;
  return month < 10 ? '0' + month : '' + month; // ('' + month) for string result
}  

You can also extend Date object with such function:

Date.prototype.getMonthFormatted = function() {
  var month = this.getMonth() + 1;
  return month < 10 ? '0' + month : '' + month; // ('' + month) for string result
}