moment.js

moment.js

//
// moment.js is a powerful library to parse, validate, manipulate, and display dates in JavaScript.
// see: http://momentjs.com/
// 
// this gist was loosely based on this article
// http://www.sitepoint.com/managing-dates-times-using-moment-js/
//
 
load('https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.10.2/moment.js');
 
//
// validating dates in a given format
//
if (moment('12-12-2015','DD-MM-YYYY').isValid() == false) throw ''; 
if (moment('29-02-2012','DD-MM-YYYY').isValid() == false) throw '';
if (moment('29-02-2008','DD-MM-YYYY').isValid() == false) throw '';
 
if (moment('29-02-2009','DD-MM-YYYY').isValid())          throw '';
if (moment('29-02-2010','DD-MM-YYYY').isValid())          throw '';
if (moment('30-02-2012','DD-MM-YYYY').isValid())          throw '';
if (moment('31-06-2012','DD-MM-YYYY').isValid())          throw '';
if (moment('32-05-2012','DD-MM-YYYY').isValid())          throw '';
if (moment('05-2012','DD-MM-YYYY').isValid())             throw '';
if (moment('xx-05-2012','DD-MM-YYYY').isValid())          throw '';
 
//
// ISO 8601 
//
if (moment('2013-02-08').isValid()==false) throw ''	//	 A calendar date part
if (moment('2013-W06-5').isValid()==false) throw ''	//	 A week date part
if (moment('2013-039').isValid()==false) throw ''	//	 An ordinal date part
 
if (moment('2013-02-08T09').isValid()==false) throw ''	//	 An hour time part separated by a T
if (moment('2013-02-08 09').isValid()==false) throw ''	//	 An hour time part separated by a space
if (moment('2013-02-08 09:30').isValid()==false) throw ''	//	 An hour and minute time part
if (moment('2013-02-08 09:30:26').isValid()==false) throw ''	//	 An hour
if (moment('2013-02-08 09:30:26.123').isValid()==false) throw ''	//	 An hour
if (moment('2013-02-08 24:00:00.000').isValid()==false) throw ''	//	 hour 24
 
if (moment('2013-02-08 09').isValid()==false) throw ''	//	 A calendar date part and hour time part
if (moment('2013-W06-5 09').isValid()==false) throw ''	//	 A week date part and hour time part
if (moment('2013-039 09').isValid()==false) throw ''	//	 An ordinal date part and hour time part
 
if (moment('2013-02-08 09+07:00').isValid()==false) throw ''	//	 +-HH:mm
if (moment('2013-02-08 09-0100').isValid()==false) throw ''	//	 +-HHmm
if (moment('2013-02-08 09Z').isValid()==false) throw ''	//	 Z
if (moment('2013-02-08 09:30:26.123+07:00').isValid()==false) throw ''	//	 +-HH:mm
 
 
//
// addition and subtraction 
// 
if (moment('2015-12-12').add(7,'days').isSame(moment('2015-12-19')) == false)   throw '';
if (moment('2015-12-12').add(7,'months').isSame(moment('2016-07-12')) == false) throw '';
if (moment('2015-12-12').add(7,'years').isSame(moment('2022-12-12')) == false)  throw '';
 
if (moment('2015-12-12').subtract(7,'days').isSame(moment('2015-12-05')) == false)   throw '';
if (moment('2015-12-12').subtract(7,'months').isSame(moment('2015-05-12')) == false) throw '';
if (moment('2015-12-12').subtract(7,'years').isSame(moment('2008-12-12')) == false)  throw '';
 
 
//
// Differences 
//
 
if (moment('2014-11-11').diff(moment('2014-10-11')) != 2682000000) throw '';
if (moment('2014-11-11').diff(moment('2014-10-11'),'days') != 31)  throw '';
if (moment('2014-11-11').diff(moment('2014-10-11'),'months') != 1) throw '';
if (moment('2014-11-11').diff(moment('2014-10-11'),'years') != 0)  throw '';
 
//
// isAfter
//
 
if (moment('2014-11-11').isBefore(moment('2014-10-11'))) throw '';
if (moment('2014-11-11').isBefore(moment('2014-10-24'))) throw '';
if (moment('2014-11-12').isAfter(moment('2014-11-16')))  throw '';
if (moment('2014-11-19').isAfter(moment('2014-12-11')))  throw '';