date validation

[The Little Guy]

Is there any why to test if a given date (YYYY-MM-DD) is a valid date? I would like to check via javascript before I check via php.

 

Anyone know of a good way to test?

[trq]

You can test for a valid date format. JavaScript, like a lot of other languages has a regex engine.

[The Little Guy]

Here is what I came up with, but I don't know if it is good or not:

 

function validDate(y, m, d){
y = parseInt(y);
m = parseInt(m);
d = parseInt(d);
ld = new Date(y, m, 0);
lastDate = ld.getDate();
date = new Date(y, m, d);
if(y != date.getFullYear())
	return false;
if(m != date.getMonth())
	return false;
if(d != date.getDate() || date.getDate() > lastDate)
	return false;
return true;
}