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  1. Write code
  2. Refactor code
  3. Extract refactorings
  4. Extract module

Extract module

Last modified: 09 August 2022

Refactor | Extract/Introduce | Module

The Extract Module refactoring allows you to extract certain members from a selected class into a separate module.

To extract a module:

Example

Before

# 'cat.rb' file
class Cat
    def breathe
        puts "inhale and exhale"
    end
    def speak
        puts "Meow"
    end
end

After

# 'cat.rb' file
class Cat
    include Animal
    def speak
        puts "Meow"
    end
end
#
# 'animal.rb' file
module Animal
    def breathe
        puts "inhale and exhale"
    end
end