coffeescript-cookbook/coffeescript-cookbook.github.com — pull request #64 by onlyjsmith (2012-11-23 10:19:54+00:00)
Title: Corrected a solution for getting last day of the month

Have tested this in Chrome 23, Firefox 17 and Opera 12.

This SO page also relates http://stackoverflow.com/questions/222309/calculate-last-day-of-month-in-javascript

The cookbook is a fantastic resource, btw!