Module: Polyfill::V2_4::Enumerable::Instance::Sum::Method

Defined in:
lib/polyfill/v2_4/enumerable/instance/sum.rb

Instance Method Summary collapse

Instance Method Details

#sum(init = 0) ⇒ Object 



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# File 'lib/polyfill/v2_4/enumerable/instance/sum.rb', line 7

def sum(init = 0)
  acc =
    begin
      init.dup
    rescue TypeError
      init
    end

  each do |elem|
    acc += block_given? ? yield(elem) : elem
  end

  acc
end