Chapter 11. All About Helpers
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We’ve already covered some of the helper methods provided by Rails to help you assemble the user interface of your web application. This chapter lists and explains all of the helper modules and their methods, followed by instructions on effectively creating your own helpers.
PrototypeHelper and ScriptaculousHelper were demoted out of Rails core and are now packaged as plugins in Rails 2.0. They are used to easily add Ajax functionality to your Rails application and are covered in-depth within Chapter 12, “Ajax on Rails.”
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