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require 'benchmark/ips'

class A
  def sum
    1 + 1
  end
end

class B
  def sum

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How to Remove Empty Elements and Empty Strings from a Hash and it's Child Elements

This class will:

• Convert all keys of the given hash into symbols.
• Remove nil elements, empty strings, empty hashes and empty arrays, from the hash itself and it's child elements.

class HashSanitizer

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#Heroku, Ruby on Rails and PhantomJS

In this post, I’m going to show you how to modify an existing Ruby on Rails app running on Heroku’s Cedar stack to use PhantomJS for screen scraping. If you’ve never heard of PhantomJS, it’s a command-line WebKit-based browser (that supports JavaScript, cookies, etc.).

Let’s get started. This is a high-level overview of the required steps:

• Modify your app to use multiple Heroku buildpacks.
• Extend your app to use both the Ruby as well as the PhantomJS buildpacks.
• Confirm that everything worked.

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###1. Prerequisites:

You must have the following gems installed:

• haml (or haml-rails)
• hpricot
• ruby_parser

###2. Create new HAML files

Test the changes: (no files created)

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Sublime Text 2 – Useful Shortcuts (Mac OS X)

General

⌘T	go to file
⌘⌃P	go to project
⌘R	go to methods
⌃G	go to line
⌘KB	toggle side bar
⌘⇧P	command prompt