Contents

class Adder
  def initialize
    @addends = []
  end

  def <<(val)
    @addends << val
  end

  def sum
    @addends.inject(0) { |sum_so_far, val| sum_so_far + val }
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
picolena-0.1.6	rails_plugins/rspec/examples/stories/adder.rb
picolena-0.1.7	rails_plugins/rspec/examples/stories/adder.rb
picolena-0.1.8	rails_plugins/rspec/examples/stories/adder.rb