Gets the year, using local time.
The required dateObj reference is a Date object.
The year as a four-digit number. For example, the year 1976 is returned as 1976. Years specified as two digits in the Date constructor or in setFullYear are assumed to be in the twentieth century, so given "5/14/12", getFullYear returns "1912".
To get the year using Universal Coordinated Time (UTC), use the getUTCFullYear method.
The following example illustrates the use of the getFullYear method.
Supported in the following document modes: Quirks, Internet Explorer 6 standards, Internet Explorer 7 standards, Internet Explorer 8 standards, Internet Explorer 9 standards, Internet Explorer 10 standards, Internet Explorer 11 standards. Also supported in Store apps (Windows 8 and Windows Phone 8.1). See Version Information.