Question

    class Fixnum
      def repeat
        for i in 1..self.to_i
          yield
        end
      end
    end

    z = Fixnum.new 4

The program above is giving undefined method new for Fixnum:Class (NoMethodError). Why so? I just tried using it in another class and it works.

Thanks!

Answer 1

It looks to me that the method and the error have no relation, why are you doing z = Fixnum.new 4?

The method should be used like:

class Fixnum
  def repeat
    for i in 1..self.to_i
      yield
    end
  end
end

5.repeat{puts "hi"}
#or maybe?
z = 3
z.repeat{puts "bye"}