Check for Leap Year

General

This snippet will check whether a date belongs to a leap year. Easy to add to an existing script.

Notes

• Created by: The JSLab Team, Tavs Dokkedahl
• Web Site: http://www.jslab.dk/
• Posted: April 21, 2008

To check whether 1981 is a leap year (it is not)

  // Create a new date
  var d = new Date();

  // Set the year
  d.setFullYear(1981);

  // Output is false
  d.isLeapYear();

Source Code

Paste this source code into the designated areas.