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class MyMiddleware
  def initialize(app)
    @app = app
    @message = message
  end

  def call(env)
    dup._call(env)
  end

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# Below is a complex example of using yielding methods to make a nice interface to use. As you
# can see in RankList#fill!, we don't need to care or check if the location really is empty.
# We also don't need to do the calculation to find the next location to insert at. We can
# iterate through each available location until we reach the end. A cool side effect is that
# we can use any of the enumerable methods on the returned enumerator from #fill_locations
# such as printing the positions of all of the empty spaces by doing:
#   p alignment_strategy.fill_locations(@the_grid).to_a

module AlignmentStrategy
  class Left

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module VirtualDate
  extend ActiveSupport::Concern

  class_methods do
    def virtual_date(name)
      attr_reader name

      # Incoming forms pass dates as a hash like {1 => 2014, 2 => 4, 3 => 30}
      # This converts that to a date class instance
      define_method("#{name}=") do |new_value|

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def mapper(date)
  if date.last_day_of_month?
    date..31
  else
    date
  end
end

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class Location < ActiveRecord::Base
  has_many :bids
  
  def accepted_bids
    bids.merge(Bid.accepted)
  end
end

class Bid < ActiveRecord::Base
  belongs_to :location

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next_frame_button.addEventListener(MouseEvent.CLICK, go_to_next_frame);

function go_to_next_frame(event:MouseEvent):void
{
    nextFrame();
}

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import flash.events.Event; 
import flash.net.URLLoader; 

var XML_URL:String = "http://yourdomainwithxml/";
var myLoader:URLLoader;
var myXML:XML = new XML();

function xmlLoaded(event:Event):void 
{ 
    myXML = XML(myLoader.data);

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<specializations>
  <specialization>
    <type>being awesome</type>
    <doctors>
      <doctor>
        <name>Dan Fox</name>
      </doctor>
      <doctor>
        <name>Nikki Rodriguez</name>
      </doctor>

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    # Returns true if the "X-Requested-With" header contains "XMLHttpRequest"
    # (case-insensitive). All major JavaScript libraries send this header with
    # every Ajax request.
    def xml_http_request?
      @env['HTTP_X_REQUESTED_WITH'] =~ /XMLHttpRequest/i
    end
    alias :xhr? :xml_http_request?

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Array.prototype.unique = function(a){
  return function(){
    return this.filter(a)
  }
}(function(a,b,c){
  return c.indexOf(a,b+1)<0
});

Array.prototype.unique = function() {
  return this.filter(function(a,b,c) {