date.js

var today = new Date();
var dd = today.getDate();
var mm = today.getMonth()+1; //January is 0!

var yyyy = today.getFullYear();
if(dd<10){
    dd='0'+dd
}
if(mm<10){
    mm='0'+mm
}
var today = yyyy+'-'+mm+'-'+dd;
console.log(today);