cassiomarques

Keybase proof

I hereby claim:

• I am cassiomarques on github.
• I am cassiomarques (https://keybase.io/cassiomarques) on keybase.
• I have a public key ASAWM1-qEX5vR9A08DeSGXFDCjhsl8ZTN3fW6uYWoGMTMgo

To claim this, I am signing this object:

cassiomarques

[1] pry(main)> show-source Random.rand

From: random.c (C Method):
Owner: #<Class:Random>
Visibility: public
Number of lines: 5

static VALUE
random_s_rand(int argc, VALUE *argv, VALUE obj)
{

cassiomarques

irb(main):021:0> Kernel.send :private, :class
=> Kernel
irb(main):022:0> foo.class
/Users/cassiommc/.rbenv/versions/2.2.2/lib/ruby/2.2.0/irb.rb:498:in `block (2 levels) in eval_input': private method `class' called for #<NoMethodError:0x007fa8f51abaa8> (NoMethodError)

cassiomarques

irb(main):014:0> foo = "I am foo"
=> "I am foo"
irb(main):015:0> foo.is_a? String
=> true
irb(main):016:0> module Kernel
irb(main):017:1> private :is_a?
irb(main):018:1> end
=> Kernel
irb(main):019:0> foo.is_a? String
NoMethodError: private method `is_a?' called for "I am foo":String

cassiomarques

# This is part of my .pryrc. 
# I put this at the section where I load Rails stuff, so I can use Pry instead of IRB 
# for my Rails Console sessions

# Once this is loaded, just run the display_routes method from the console to see the same output that rake routes displays.
# I think it's better because I always leave a Rails console session running :)


    require 'rails/application/route_inspector'

cassiomarques

/**
 * Recebe um objeto e o nome de uma propridade. Verifica se a propriedade existe no objeto. 
 * Se não existir, para cada propriedade do objeto que também seja um objeto, chama a si 
 * mesma recursivamente verificando se a propriedade pode ser encontrada. 
 * Caso a propriedade não seja encontrada, retorna false.
 */
function objectHasProperty(object, property) {
  if (property in object) {
    return true;
  } else {

cassiomarques

# For example, in a migration
#
#  create_check_with_enumeration :foobars, :column => :category, :with => FoobarsCategory
#
# will create a check constraint in the table "foobars", so the column "category" will only accept one 
# of the values declared in the FoobarsCategory enumeration
#
module ActiveRecord
  module ConnectionAdapters
    class PostgreSQLAdapter < AbstractAdapter

cassiomarques

class A
  def self.create_sub_class(name)
    c= Class.new(self)
    const_set name, c
  end
end

A.create_sub_class "B"
A::B # ok!

cassiomarques

var n = 3;
console.log(n.toFixed(5)); // 3.00000 

//ou

console.log(Number(1.23).toFixed(5)); // 1.23000

cassiomarques

value1 = 10;
var value2 = 0;

if(value2 == '') {
    console.log("Não deveria ter sido executado!");
}

var funA = function() {
    value1 = value1 * 2;
}