Module: Metricstore::AllCombinations

Included in:
Array
Defined in:
lib/metricstore/monkey_patches.rb

Instance Method Summary collapse

Instance Method Details

#all_combinations ⇒ Object 



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# File 'lib/metricstore/monkey_patches.rb', line 3

def all_combinations
  if block_given?
    a = self.to_a
    0.upto(size) do |n|
      a.combination(n) do |c|
        yield c
      end
    end
  else
    Enumerator.new do |yielder|
      a = self.to_a
      0.upto(size) do |n|
        a.combination(n) do |c|
          yielder << c
        end
      end
    end
  end
end