How do I get a date in YYYY-MM-DD format?

Question

Normally if I wanted to get the date I could just do something like

var d = new Date(); console.log(d);

The problem with doing that, is when I

Answer 1

var today = new Date();

function formatDate(date) {
 var dd = date.getDate();
        var mm = date.getMonth() + 1; //January is 0!
        var yyyy = date.getFullYear();
        if (dd < 10) {
          dd = '0' + dd;
        }
        if (mm < 10) {
          mm = '0' + mm;
        }
        //return dd + '/' + mm + '/' + yyyy;
             return yyyy + '/' + mm + '/' +dd ;

}

console.log(formatDate(today));

Answer 2

function formatdate(userDate){
  var omar= new Date(userDate);
  y  = omar.getFullYear().toString();
  m = omar.getMonth().toString();
  d = omar.getDate().toString();
  omar=y+m+d;
  return omar;
}
console.log(formatDate("12/31/2014"));

Answer 3

Here is a simple function I created when once I kept working on a project where I constantly needed to get today, yesterday, and tomorrow's date in this format.

function returnYYYYMMDD(numFromToday = 0){
  let d = new Date();
  d.setDate(d.getDate() + numFromToday);
  const month = d.getMonth() < 9 ? '0' + (d.getMonth() + 1) : d.getMonth() + 1;
  const day = d.getDate() < 10 ? '0' + d.getDate() : d.getDate();
  return `${d.getFullYear()}-${month}-${day}`;
}

console.log(returnYYYYMMDD(-1)); // returns yesterday
console.log(returnYYYYMMDD()); // returns today
console.log(returnYYYYMMDD(1)); // returns tomorrow

Can easily be modified to pass it a date instead, but here you pass a number and it will return that many days from today.

Answer 4

If you're not opposed to adding a small library, Date-Mirror (NPM or unpkg) allows you to format an existing date in YYYY-MM-DD into whatever date string format you'd like.

date('n/j/Y', '2020-02-07') // 2/7/2020
date('n/j/Y g:iA', '2020-02-07 4:45PM') // 2/7/2020 4:45PM
date('n/j [until] n/j', '2020-02-07', '2020-02-08') // 2/7 until 2/8

Disclaimer: I developed Date-Mirror.