Class: Jan::CheckDigit

Inherits:

String

Object
String
Jan::CheckDigit

Defined in:: lib/jan/check_digit.rb

Instance Method Summary collapse

#initialize(check_digit) ⇒ CheckDigit constructor

A new instance of CheckDigit.
#valid? ⇒ boolean

Constructor Details

#initialize(check_digit) ⇒ `CheckDigit`

Returns a new instance of CheckDigit.

Parameters:

check_digit (String)

# File 'lib/jan/check_digit.rb', line 4

def initialize(check_digit)
  @check_digit = check_digit
  super(check_digit)
end

Instance Method Details

#valid? ⇒ `boolean`

Returns:

(boolean)



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# File 'lib/jan/check_digit.rb', line 10

def valid?
  @check_digit.match?(/\A\d\z/)
end