Create forms, check boxes, radio buttons, select lists and more using Rails' built-in form helpers.
ActionMailer is the Rails framework which handles email delivery. This comprehensive cheatsheet will help your email on its way.
Up and down methods, rake tasks, database mapping, loading fixtures, example migration file, all packed onto one A4 page for an easy at-a-glance reference
If you want an easy way to use visual effects on your page or to manipulate the DOM in an AJAX style way but without making a call to the server, then take a look at this helper method...
I have completely rewritten the form helpers cheatsheet to make it much more useful.
Regular expressions can be one of the trickiest aspects of programming to manage. This little tool will help you test out your code quickly and easily...