isDate(y: Integer, m: Integer, d: Integer): Integer
Checks a date and returns 0 if it's valid or one of the error codes bellow.
y year
m month
d day
Return codes
* 0 = Valid date
* 1 = Date format invalid (regular expression failed or amount of arguments != 3)
* 2 = Day isn't between 1 and 31
* 3 = Month isn't between 1 and 12
* 4 = On April, June, September and November there isn't the day 31
* 5 = On February the month has only 28 days
* 6 = Leap year, February has only 29 days
Checks a date and returns 0 if it's valid or one of the error codes bellow.
y year
m month
d day
Return codes
* 0 = Valid date
* 1 = Date format invalid (regular expression failed or amount of arguments != 3)
* 2 = Day isn't between 1 and 31
* 3 = Month isn't between 1 and 12
* 4 = On April, June, September and November there isn't the day 31
* 5 = On February the month has only 28 days
* 6 = Leap year, February has only 29 days
URL: http://jsfromhell.com/geral/is-date
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