The modernizr-rails gem will include the Modernizr.js library (https://github.com/Modernizr/Modernizr) into your Rails 3.1 or higher app via the asset pipeline. This modernizr.js file was built using the builder located at http://www.modernizr.com/download/ with all options checked.
How to Use
Add the following to your GemFile:
Then add the following to your application.js manifest:
//= require modernizr
Don't forget to run
bundle update after upgrading to the latest gem version to ensure it's used by your rails app.
HTML5 Boilerplate Rails Application Template
If you're also a fan of the HTML5 Boilerplate project (http://h5bp.com), please check out a Rails 3.1 compatible application template I created that incorporates this Modernizr-Rails gem: https://github.com/russfrisch/h5bp-rails
This is my first Ruby Gem so if there is anything that can be done better or you would like to see tweaked, please send me a push request.