geocodinglife

g = -> (f, x) { f.call(x, 3) }
h = -> (x, y) { x + y }
g.call(h, 5)
>>8

#same as this
geo  = -> (zombi, gasparin) { zombi.call(gasparin, 3) }
jose = -> (gasparin, frankenstein) { gasparin + frankenstein }
geo.call(jose, 5)
>> 8

geocodinglife

Pry Cheat Sheet

• Youtube Tutorial 2013

Command Line

• pry -r ./config/app_init_file.rb - load your app into a pry session (look at the file loaded by config.ru)
• pry -r ./config/environment.rb - load your rails into a pry session

Debugger

geocodinglife

puts 'hello world'

geocodinglife

class Employee
  attr_accessor :name, :salary
  def initialize(name, salary)
    @name   = name
    @salary = salary.to_i
  end



  def start_salary

geocodinglife

class Car
  attr_accessor :speed, :acceleration, :braking, :velocity

  def initialize(velocity = 0)
    @velocity = velocity
  end

  def accelerate(acceleration)
    acceleration == 0 ?  @velocity + 1 : @velocity + acceleration
  end

geocodinglife

<h1>How remote true works</h1>

<%= form_tag remote: true  do %>
	<%= text_field_tag "name" %>
	<%= submit_tag "sumit you name" %>
<% end %>


<div style="border: 1px red solid" id="names">
	<%= @names %>

geocodinglife

class Person
   attr_reader :name
    def initialize(name)
   	 self.name = name
  	end
  
  def name=(name)  
    if name == nil or name.size == 0  
      raise ArgumentError.new('Must have a  name.')  
    end 

geocodinglife

.tiny-stone{
	width: 45px;
	height: 45px;
	position: relative;
	margin: auto;
	background: image-url('green-ubatuba.jpg');
	background-size: cover;
}

geocodinglife

#pending to comberted to more objec oriented.......

geocodinglife

class RoomsController < ApplicationController
  def index
    @rooms = Room.all
  end
 
  def show
    @room = Room.find(params[:id])
  end
 
  def new