Intro to Ruby - 11 - Modules

using_modules.rb

# Basic Module
module MyModule
  def module_hello
    return “MyModule module_hello method”
  end
end

# Class with module included
class ClassOne
  include MyModule
end

# Another class with module included
class ClassTwo
  include MyModule
end

# Create an object from ClassOne class
c1 = ClassOne.new

# List all methods that have "hello" in their name
c1.methods.grep /hello/ # => [... "module_hello", ...]

# Run module_hello method on c1 object
c1.module_hello # => "MyModule module_hello_method"

# Create object from ClassTow class
c2 = ClassTwo.new

# Run module_hello method on c2 object
c2.module_hello # => "MyModule module_hello_method"