Method: Streamer::Functors::Subtract#subtract

Defined in:
lib/streamer/functors/subtract.rb

#subtract ⇒ Object 



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# File 'lib/streamer/functors/subtract.rb', line 9

def subtract
  terms = options.fetch(:terms)
  initial_prop = terms.shift
  terms.inject(prop(initial_prop).to_f) do |total, item|
    total - prop(item).to_f
  end
end