Module: CheckDigit::Util

Defined in:
lib/check_digit/util.rb

Class Method Summary collapse

Class Method Details

.valid_arg(num) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/check_digit/util.rb', line 2

def self.valid_arg(num)
  raise ArgumentError, 'invalid argument' unless
    num.is_a?(Integer) || (num.to_i.to_s == num)
end