ngpestelos

# add gem 'pusher' to your Gemfile
require 'pusher-client'

PusherClient.logger = Logger.new(STDOUT)
options = {secret: 'my_secret'}

socket = PusherClient::Socket.new('my_key', options)

socket['private-foo'].bind('client-status') do |data|
  puts "Got data: #{data}"

ngpestelos

pusher = new Pusher("#{Settings.pusher_key}")
channel = pusher.subscribe("integrations-ui")
channel.bind('some-event', function(data) {
  alert(data.message)
})

ngpestelos

# see Metaprogramming Ruby, p. 70

v1 = 1
class MyClass
  puts "Scope gate: entering class"
  v2 = 2
  puts "  Local variables: #{local_variables}"
  def my_method
    puts "Scope gate: entering method"
    v3 = 3

ngpestelos

# see Metaprogramming Ruby, p. 72

my_var = "success"

MyClass = Class.new do
  puts "#{my_var} in the class definition!"
  
  define_method :my_method do
    puts "#{my_var} in the method!"
  end

ngpestelos

def my_method(x)
  yield(x) if block_given?
end

y = 10
my_method(6) { |x| puts "hello: #{x + y}" } #16

ngpestelos

def my_method(x)
  yield(x) if block_given?
end

my_method(6) { |x| puts "hello: #{x}" }

ngpestelos

# see Metaprogramming Ruby, p. 56
class String
  def method_missing(method, *args)
    method == :ghost_reverse ? reverse : super
  end
end

require 'benchmark'
Benchmark.bm do |b|
  b.report 'Normal method' do

ngpestelos

class DataSource
  def get_display_info(x)
    "GeForce 3000"
  end

  def get_display_price(x)
    100
  end

  def get_casing_info(x)

ngpestelos

class Roulette
  def method_missing(name, *args)
    person = name.to_s.capitalize
    3.times do
      number = rand(10) + 1
      puts "#{number}"
    end
    "#{person} got a #{number}" # Ruby gets confused here
  end
end

ngpestelos

class DataSource
  def get_video_info(x)
    "GeForce 3000"
  end

  def get_video_price(x)
    100
  end

  def get_casing_info(x)