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Contents
# frozen_string_literal: true
require "attr_extras"
module Renalware
# Value object representing Body Mass Index. Accepts only meters and kg
#
# Example usage:
# bmi = Renalware::BMI.new(height: 1.80, weight: 180)
# bmi.to_f # => 55.6
# bmi.to_s # => "55.6"
#
class BMI
pattr_initialize [:weight!, :height!]
delegate :to_s, to: :to_f
def to_f
return unless weight && height && height > 0
((weight / height) / height).round(1)
end
end
end
Version data entries
104 entries across 104 versions & 1 rubygems