A light wrapper for using dynamo.js with Ruby on Rails.

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In your Gemfile:

gem 'dynamojs_rails'

Then run:

$ bundle

Include dynamo in app/assets/javascripts/application.js

//= require dynamo


dynamo_tag :span, %w{one two}
# => <span class="dynamo" data-lines="two">one</span>

dynamo_tag :h2, %w{one two}, {
  center: true,
  speed: 100,
  delay: 1000,
  pause: true,
  callback: "dynamoCallback",
  class: "blinking"
# => <span class="blinking dynamo" data-callback="dynamoCallback" data-center="true"
  data-delay="1000" data-lines="two" data-pause="true" data-speed="100">one</span>

All elements with the .dynamo class will are already invoked with $.dynamo()


  • speed: the speed of the transition (default: 350ms)
  • delay: the delay between transitions (default: 3000ms)
  • center: center the text in the dynamo container (default: false)
  • pause: sets up the dynamo, but does not automatically transition (default: false)
  • callback: a javascript function name to be called each time the dynamo container completes a full cycle


  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Add a test for it in spec/dynamo_spec.rb and make sure tests pass when you run rake
  4. Commit your changes (git commit -am 'Add some feature')
  5. Push to the branch (git push origin my-new-feature)
  6. Create new Pull Request