Earlier this week, I discovered that Safari doesn’t support dates in ISO 8601 UTC combined format:  “2010-06-19T03:11Z”.  This was a problem as my production system was delivering me a json file with dates in this format and my project was simply a new UI for the existing server.  A quick round of googling found DateJS a powerful chainable Date extension that enables both unified parsing and mask based date rendering.  I’d only played with it for a few minutes before I was completely hooked on it.  Just look at what it can do.

   1: // What date is next thursday?

   2: Date.today().next().thursday();

   3:  

   4: // Add 3 days to Today

   5: Date.today().add(3).days();

   6:  

   7: // Is today Friday?

   8: Date.today().is().friday();

   9:  

  10: // Number fun

  11: (3).days().ago();

  12:  

  13: // 6 months from now

  14: var n = 6;

  15: n.months().fromNow();

  16:  

  17: // Set to 8:30 AM on the 15th day of the month

  18: Date.today().set({ day: 15, hour: 8, minute: 30 });

  19:  

  20: // Convert text into Date

  21: Date.parse('today');

  22: Date.parse('t + 5 d'); // today + 5 days

  23: Date.parse('next thursday');

  24: Date.parse('February 20th 1973');

  25: Date.parse('Thu, 1 July 2004 22:30:00');

And Yes It supports ISO 8601 UTC combined format!.

A quick replacement of my existing date toolkit in the project and my bugs were fixed.

D’bug has published a wonderful list of techniques for abbreviating Javascript and improving performance.

You can find the article here:

http://blog.reindel.com/2007/11/01/javascript-shorthand-tips-and-tricks/