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asdf

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# --- BEFORE ---

module Rack
  class ETag
    def call(env)
      # ...
      unless headers['Cache-Control']
        if digest
          headers['Cache-Control'] = @cache_control if @cache_control
        else

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/*!
 * jQuery JavaScript Library v1.9.0pre
 * http://jquery.com/
 *
 * Includes Sizzle.js
 * http://sizzlejs.com/
 *
 * Copyright 2012 jQuery Foundation and other contributors
 * Released under the MIT license
 * http://jquery.org/license

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/*!
 * jQuery JavaScript Library v1.9.0pre
 * http://jquery.com/
 *
 * Includes Sizzle.js
 * http://sizzlejs.com/
 *
 * Copyright 2012 jQuery Foundation and other contributors
 * Released under the MIT license
 * http://jquery.org/license

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/*!
 * jQuery JavaScript Library v1.9.0pre
 * http://jquery.com/
 *
 * Includes Sizzle.js
 * http://sizzlejs.com/
 *
 * Copyright 2012 jQuery Foundation and other contributors
 * Released under the MIT license
 * http://jquery.org/license

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class Foo
  def method_missing(method_name, *args)
    return if method_name == :to_ary
    # ...
  end
end

# Running above benchmark
#                            user     system      total        real
# flatten Object objects  0.000000   0.000000   0.000000 (  0.014153)

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require 'benchmark'

class Foo
  def method_missing(method_name, *args)
    if method_name.match(/foo_bar/)
      # code
    else
      super(method_name, *args)
    end
  end

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class Foo
  def foo
    return nil
  end
end

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ActiveRecord::Base.connection.instance_variable_set :@logger, Logger.new(STDOUT)

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# Group an array into a Hash of Arrays
#
# [<Obj: name, category>,<Obj: name, category>,<Obj: name, category>]
#
# => {'category_1' => [<Obj: name, category>], 'category_2' => [<Obj: name, category>,<Obj: name, category>]}

arr.inject({}) {|hsh,obj| hsh[obj.category] ||= []; hsh[obj.category] << obj; hsh}