Chris Doyle arches

## example.rb
> my_array = [{server: "localhost", ip: "192.168.0.1"}, {server: "google dns", ip: "8.8.8.8"}]
> tp my_array
SERVER     | IP
-----------|------------
localhost  | 192.168.0.1
google dns | 8.8.8.8


# or with objects
> class ServerInfo

## kaboom.rb
def foobar(&blk)
  yield "bar" if blk
  "foo"
end

> foobar
=> "foo"
> foobar {|x| puts x}
bar
=> "foo"

## 1 resources
I have found these resources particularly helpful in preparing this posting:

Hiring Engineers, a Process
http://hueniverse.com/2013/02/hiring-engineers-a-process/

Join the Lift Team
http://blog.lift.do/post/24988178079/join-the-lift-team

How Etsy Increased Diversity in Its Engineering Department: An Interview with Marc Hedlund
https://www.youtube.com/watch?v=0D66GVc7ztA

## Procfile
monitor: bundle exec ruby monitor.rb

## bob.rb
class Bob
  def hey(message)
    message ||= ""

    message = Message.new(message)

    case
    when message.shouting?
      "Woah, chill out!"
    when message.question?

## gol.html
<html>
  <head>
  <script type="text/javascript">
  /*! jQuery v2.0.1 | (c) 2005, 2013 jQuery Foundation, Inc. | jquery.org/license
//@ sourceMappingURL=jquery-2.0.1.min.map
*/
(function(e,undefined){var t,n,r=typeof undefined,i=e.location,o=e.document,s=o.documentElement,a=e.jQuery,u=e.$,l={},c=[],f="2.0.1",p=c.concat,h=c.push,d=c.slice,g=c.indexOf,m=l.toString,y=l.hasOwnProperty,v=f.trim,x=function(e,n){return new x.fn.init(e,n,t)},b=/[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/.source,w=/\S+/g,T=/^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]*))$/,C=/^<(\w+)\s*\/?>(?:<\/\1>|)$/,k=/^-ms-/,N=/-([\da-z])/gi,E=function(e,t){return t.toUpperCase()},S=function(){o.removeEventListener("DOMContentLoaded",S,!1),e.removeEventListener("load",S,!1),x.ready()};x.fn=x.prototype={jquery:f,constructor:x,init:function(e,t,n){var r,i;if(!e)return this;if("string"==typeof e){if(r="<"===e.charAt(0)&&">"===e.charAt(e.length-1)&&e.length>=3?[null,e,null]:T.exec(e),!r||!r[1]&&t)return!t||t.jquery?(t||n).find(e):this.constructor(t).find(e);if(r[1]){if(

## scheduler.rake
desc "Pings PING_URL to keep a dyno alive"
task :dyno_ping do
  require "net/http"

  if ENV['PING_URL']
    puts "Pinging #{ENV['PING_URL']}"
    uri = URI(ENV['PING_URL'])
    Net::HTTP.get_response(uri)
  end
end

## abstract.txt
"Change it until it works" used to be how I approached
metaprogramming - the ruby equivalent of kicking the
tires until the car starts. In this talk we'll gingerly
lift the hood and take a look at what's under there.
We'll start with a high-level overview to get some
context but quickly move on to various ways of inspecting
and manipulating objects, classes, and the metaclass.
You'll leave with a set of tools and techniques to make
metaprogramming more tangible and explorable.

## discountable.rb
module Discountable
  def to_discount_code
    DiscountCode.find_by_code(self)
  end
end

class DiscountCode < ActiveRecord::Base
  def to_discount_code
    self
  end

## 1_order_collection_extension.rb
module OrderCollectionExtension
  def revenue
    self.sum(:payment_total_in_cents)
  end
end

Order.non_zero_price.extend(OrderCollectionExtension).revenue
	> my_array = [{server: "localhost", ip: "192.168.0.1"}, {server: "google dns", ip: "8.8.8.8"}]
	> tp my_array
	SERVER \| IP
	-----------\|------------
	localhost \| 192.168.0.1
	google dns \| 8.8.8.8


	# or with objects
	> class ServerInfo
	def foobar(&blk)
	yield "bar" if blk
	"foo"
	end

	> foobar
	=> "foo"
	> foobar {\|x\| puts x}
	bar
	=> "foo"
	I have found these resources particularly helpful in preparing this posting:

	Hiring Engineers, a Process
	http://hueniverse.com/2013/02/hiring-engineers-a-process/

	Join the Lift Team
	http://blog.lift.do/post/24988178079/join-the-lift-team

	How Etsy Increased Diversity in Its Engineering Department: An Interview with Marc Hedlund
	https://www.youtube.com/watch?v=0D66GVc7ztA
	class Bob
	def hey(message)
	message \|\|= ""

	message = Message.new(message)

	case
	when message.shouting?
	"Woah, chill out!"
	when message.question?
	<html>
	<head>
	<script type="text/javascript">
	/*! jQuery v2.0.1 \| (c) 2005, 2013 jQuery Foundation, Inc. \| jquery.org/license
	//@ sourceMappingURL=jquery-2.0.1.min.map
	*/
	(function(e,undefined){var t,n,r=typeof undefined,i=e.location,o=e.document,s=o.documentElement,a=e.jQuery,u=e.$,l={},c=[],f="2.0.1",p=c.concat,h=c.push,d=c.slice,g=c.indexOf,m=l.toString,y=l.hasOwnProperty,v=f.trim,x=function(e,n){return new x.fn.init(e,n,t)},b=/[+-]?(?:\d\.\|)\d+(?:[eE][+-]?\d+\|)/.source,w=/\S+/g,T=/^(?:\s(<[\w\W]+>)[^>]\|#([\w-]))$/,C=/^<(\w+)\s*\/?>(?:<\/\1>\|)$/,k=/^-ms-/,N=/-([\da-z])/gi,E=function(e,t){return t.toUpperCase()},S=function(){o.removeEventListener("DOMContentLoaded",S,!1),e.removeEventListener("load",S,!1),x.ready()};x.fn=x.prototype={jquery:f,constructor:x,init:function(e,t,n){var r,i;if(!e)return this;if("string"==typeof e){if(r="<"===e.charAt(0)&&">"===e.charAt(e.length-1)&&e.length>=3?[null,e,null]:T.exec(e),!r\|\|!r[1]&&t)return!t\|\|t.jquery?(t\|\|n).find(e):this.constructor(t).find(e);if(r[1]){if(
	desc "Pings PING_URL to keep a dyno alive"
	task :dyno_ping do
	require "net/http"

	if ENV['PING_URL']
	puts "Pinging #{ENV['PING_URL']}"
	uri = URI(ENV['PING_URL'])
	Net::HTTP.get_response(uri)
	end
	end
	"Change it until it works" used to be how I approached
	metaprogramming - the ruby equivalent of kicking the
	tires until the car starts. In this talk we'll gingerly
	lift the hood and take a look at what's under there.
	We'll start with a high-level overview to get some
	context but quickly move on to various ways of inspecting
	and manipulating objects, classes, and the metaclass.
	You'll leave with a set of tools and techniques to make
	metaprogramming more tangible and explorable.
	module Discountable
	def to_discount_code
	DiscountCode.find_by_code(self)
	end
	end

	class DiscountCode < ActiveRecord::Base
	def to_discount_code
	self
	end
	module OrderCollectionExtension
	def revenue
	self.sum(:payment_total_in_cents)
	end
	end

	Order.non_zero_price.extend(OrderCollectionExtension).revenue