SHDate.isLeapYear()
The isLeapYear()
method returns whether the specified date is a leap year.
Try it
Syntax
isLeapYear();
Return value
If the year is a leap year, the value is correct; Otherwise, the value is incorrect.
Examples
Using isLeapYear()
var today = new SHDate();
var isLeapYear = today.isLeapYear();
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/isLeapYear