Answers for "js get days from starting of a year till current month"

javascript get current month start and end date

var date = new Date();
var firstDay = new Date(date.getFullYear(), date.getMonth(), 1);
var lastDay = new Date(date.getFullYear(), date.getMonth() + 1, 0);

js get date day month year

var dateObj = new Date();
var month = dateObj.getUTCMonth() + 1; //months from 1-12
var day = dateObj.getUTCDate();
var year = dateObj.getUTCFullYear();

newdate = year + "/" + month + "/" + day;

javascript days until end of month

let dateToday = new Date();
let lastDayOfMonth = new Date(dateToday.getFullYear(), dateToday.getMonth()+1, 0).getDate();
let daysUntilEndOfMonth = lastDayOfMonth - dateToday.getDate();
console.log(daysUntilEndOfMonth)