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Test Driven Development, or...
Setup your development environment.
Configure your production server.
Learn how to modify production to run websockets.
Learn how to format text in Markdown using the html-pipeline gem
Learn how to use Omniauth And omniauth-twitter to let your users authorize and connect to the Twitter API using their Twitter account with your Rails app
Learn how to create forms with multiple submit buttons
Learn how to create simple API tokens for authentication with Devise
Learn how to set up polymorphic associations, add comments to your app, and think about the structure of your Rails application
Learn how to upload files with the newest file upload library on the block: Refile
Add background uploads and progress easily with Refile's JS library
Learn how to refactor a complex controller with a bunch of methods into a much cleaner set of code
Learn how oEmbed works to dynamically grab embed codes from a URL and how we can use fragment caching to make this more efficient
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