Class: CNPJ::VerifierDigit
- Inherits:
-
Object
- Object
- CNPJ::VerifierDigit
- Defined in:
- lib/cnpj/verifier_digit.rb
Class Method Summary collapse
Class Method Details
.generate(numbers) ⇒ Object
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# File 'lib/cnpj/verifier_digit.rb', line 3 def self.generate(numbers) index = 2 sum = numbers.reverse.reduce(0) do |sum, number| (sum + number * index).tap do index = index == 9 ? 2 : index + 1 end end mod = sum % 11 mod < 2 ? 0 : 11 - mod end |