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Date: 2008-02-18
Technology News:
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Ruby on Rails Beyond the Basics: Errors and Exceptions
How to fix errors after development is done
In this video, host Kevin Skoglund discusses Errors and Exceptions and how to fix errors after development is done. Kevin discusses how errors and exceptions work inside Ruby and inside Rails.

Ruby on Rails Beyond the Basics: Modules and Control Flow
In this video, host Kevin Skoglund discusses Modules, which are wrappers for Ruby Codwe. Kevin sites two reasons in which Modules should be used, including Namespace, which allows us to have class names that don't conflict with other class names. The second is mix-ins, which contain functionality in them that we can pull into the classes to work with.

Ruby on Rails Beyond the Basics: Classes and Methods
In this video, host Kevin Skoglund discusses Classes. Because Classes are multi-line commands and you don't want to be typing the lines each time, Kevin starts off with loading an external file from the desktop and he shows how to do it. He discusses the differences between accessing files on a Windows desktop and a Mac desktop. He then details the definition of the Class, in this case, an animal file.

Ruby on Rails Beyond the Basics: Sort and Custom blocks
Discusses how Sort uses the Code block as well as comparisons using Sort's Comparison operator
In this video, host Kevin Skoglund discusses Sort and how Sort sorts items by the first letter of the string or the numerical order. He discusses how Sort uses the Code block as well as comparisons using Sort's Comparison operator.

Ruby on Rails Beyond the Basics: Collect and Inject
In this video, host Kevin Skoglund discusses Collect and Map, methods. he then applies his Collect method in the Code Block to do something with it. The results of Collect is always an Array. Collect always returns the same number of items out of it as what goes into it. He also shows how to apply Collect to Hashes as well.

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