kstratis

.panel.panel-primary.ef-question-panel > .panel-body > h4.text-muted{
  background: #AFD2C2;
  padding: 15px 15px 5px 15px;
  color: #000000;
}

kstratis

class Module
  # `hello` should be readily available within all regular classes
  def hello
    puts 'Hello World'
  end
end

# `special` should be available within all regular singleton classes
class Module
  class << self

kstratis

module Kernel
  def say_hello
    puts "hello world"
  end
end

Object.new.say_hello # => hello world

Object.say_hello # => hello world - Shouldn't be possible!

kstratis

puts "Hello World"