jquery get current month days code example
Example 1: daysinmonth javascript
var dt = new Date();
var month = dt.getMonth();
var year = dt.getFullYear();
daysInMonth = new Date(year, month, 0).getDate();
Example 2: javascript get day of year from date
var myDate = new Date(2019, 11, 06, 10, 45);
var dayInYear = Math.floor((myDate - new Date(myDate.getFullYear(), 0, 0)) / (1000 * 60 * 60 * 24));
Example 3: get current date javascript full month
var Xmas95 = new Date();
var options = { month: 'long'};
console.log(new Intl.DateTimeFormat('en-US', options).format(Xmas95));
console.log(new Intl.DateTimeFormat('de-DE', options).format(Xmas95));