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Editorial Team
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Asked: 2026-05-25T20:54:03+00:00

I’d like to remove a class method that gets added to my class via

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I’d like to remove a class method that gets added to my class via the include function. For example:

class Foo
    include HTTParty

    class << self
      remove_method :get
    end
end

This doesn’t work, it says “get” isn’t a method on Foo. Basically, the “get” method is provided the HTTParty module and I’d like to remove it. I’ve tried several attempts with no luck. Things I’ve read/tried:

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1 Answer

  1. Editorial Team

    Use undef instead of remove_method:

    require 'httparty'

class Foo
  include HTTParty
  class << self
    undef :get
  end
end

Foo.get #=> NoMethodError: undefined method `get' for Foo:Class

    Cancels the method definition. Undef can not appear in the method
    body. By using undef and alias, the interface of the class can be
    modified independently from the superclass, but notice it may be broke
    programs by the internal method call to self.
    http://web.njit.edu/all_topics/Prog_Lang_Docs/html/ruby/syntax.html#undef

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