jakehow (owner)

Revisions

gist: 97299 Download_button fork
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modular-restriction #
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class Array
  def sum
    inject(0) {|total,n| total + n }
  end
end
 
puts Array.new([1,2,3,4]).sum
puts [1,2,3,4].sum
 
module StickyFingaz
  class Array < ::Array
    def sum
      # I always keep one for myself
      inject(0) {|total,n| total + n } - 1
    end
  end
  puts Array.new([1,2,3,4]).sum
  puts [1,2,3,4].sum
end
 
module LazyFool
  class Array < ::Array
    def sum
      # You can teach a man to fish...
      lambda { inject(0) {|total,n| total + n } }
    end
  end
  
  puts Array.new([1,2,3,4]).sum
  puts [1,2,3,4].sum
end