Question

Possible Duplicate:
How to determine number Saturdays and Sundays comes between two dates in java script

I want to find the no of Sundays in a month using javascript

i am passing month and year to a function

i am able to calculate total days using

  <script type="text/javascript">
        function daysInMonth(month, year) {
            return new Date(year, month, 0).getDate();
        }
    </script>

but need to find no of sundays

Please suggest

Answer 1

https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Date

function sundays(year, month) {

    var day, counter, date;

    day = 1;
    counter = 0;
    date = new Date(year, month, day);
    while (date.getMonth() === month) {
        if (date.getDay() === 0) { // Sun=0, Mon=1, Tue=2, etc.
            counter += 1;
        }
        day += 1;
        date = new Date(year, month, day);
    }
    return counter;
}

console.log(sundays(2012, 5));