The following literals are all used as the unit parameter to the add() method and the Date.addDate() function.

Date.MILLI
Date.SECOND
Date.MINUTE
Date.HOUR
Date.DAY
Date.MONTH
Date.YEAR

• getFullYear() Implemented only if there is no built in implementation. Returns a 4 digit year, but can't handle dates between 0 and 100 AD.
• setFullYear( year) Implemented only if there is no built in implementation. Accepts a 4 digit year but can't handle dates between 0 and 100 AD, which are interpreted as 1901 to 1999.
• compareTo( date) Similar to the standard C comparison functions, eg. returns an integer that is
  • > 0 when this date is later than the second.
  • 0 when both dates are equal.
  • < 0 when this date is earlier than the second.
• isLeapYear() returns true if this is a leap year, false otherwise.
• add( unit, amount) Adds an amount of a specific unit to this date. Units can be Date.YEAR, Date.MONTH, Date.DAY, Date.HOUR, Date.MINUTE, Date.SECOND, Date.MILLI.
• getDaysInMonth() returns the number of days in this month.

• Date.compare( d1, d2) similar to the compareTo() method.
• Date.leapYear( year) similar to the isLeapYear() method.
• Date.addDate( date, unit, amount) similar to the add() method.
• Date.daysInMonth( year, month) similar to the getDaysInMonth() method. Parameter month must be a number from 0 to 11.

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