romiras/extend_include.md

Created November 29, 2024 23:42

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Ruby's include vs extend explained

Raw

module Mod
  def x
     puts "x"
  end
end

class C1
  extend Mod
end

class C2
  include Mod
end

C1.x - will work

C2.x - will not, but C2.new.x will

In essence