class Valvat::Checksum::HR
Public Instance Methods
check_digit()
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# File lib/valvat/checksum/hr.rb, line 6 def check_digit product = 10 sum = 0 figures.each do |figure| sum = (figure + product) % 10 sum = 10 if sum.zero? product = (2 * sum) % 11 end (10 - ((product - 1) % 10)) % 10 end