[removed] calculate number of days in month for a given year

Question

I have a HTML page with 3 dropdowns for the month, day and year and I was wondering if there was a way to populate the month drop down properly depending on the month and ye

Answer 1

Here's the one liner. Assuming you are saying January=1, February=2 etc..(being normal) Here's the leap year example:

var y = 2012;
var m = 2;
var daysInMonth = new Date(y,m,1,-1).getDate();