function that return num of days in month

[kfir91]

function getDays() {
var intMonth = getFullYear[document.getElementById('month').innerHTML];
var intYear = document.getElementById('year').innerHTML;
var dteMonth = new Date(intYear,intMonth);
var intDaysInMonth = 28;
var blnDateFound = false;
while (!blnDateFound) {
	dteMonth.setDate(intDaysInMonth+1);
	var intNewMonth = dteMonth.getMonth();
	if (intNewMonth != intMonth)
		blnDateFound = true;
	else
		intDaysInMonth++;
}
return intDaysInMonth;
}

 

i tried this.. but its return invalid nums...

how i do function that return num of days in month if i have month in num and year in num.

[Psycho]

I'm pretty sure that first line is invalid. I'm really not making sense of your code, but...

 

Assuming you have the year and the month as numerical values, this function will return the number of days in that month:

 

function daysInMonth(iMonth, iYear)
{
    return 32 - new Date(iYear, iMonth, 32).getDate();
}

 

I do not take credit for this. I lifted this code from here: http://snippets.dzone.com/posts/show/2099

[kfir91]

its return null..

its not return nothing

[kfir91]

its return invalid nums too...

like in june have 31 days and have 30 ... and

jan 28 days and there is 31...

[Psycho]

No offense, but your first response states it is not returning anything, then your second response states it's returning the wrong values. So, forgive me if I don't trust your results.

 

Based on the logic, i see no reason it would not work. You do know that in Javascript the months are numerically based starting at zero (0), right?

 

January = 0, February = 1, etc.