||set the year and, optionally, the month and
date.setFullYear(year, month, day)
The year, expressed in local time, to be set in
date. This argument should be an integer
that includes the century, such as 1999; it should not be an
abbreviation, such as 99.
An optional integer, between 0 and 11 that is used as the new value
(in local time) of the month field of
An optional integer, between 1 and 31 that is used as the new value
(in local time) of the day-of-month field of
The internal millisecond representation of the adjusted date.