Returns:
12 13 14
# File 'lib/validatr/ext/string.rb', line 12 def valid_damm? Validatr::Damm.valid? self end
4 5 6
# File 'lib/validatr/ext/string.rb', line 4 def valid_luhn? Validatr::Luhn.valid? self end
8 9 10
# File 'lib/validatr/ext/string.rb', line 8 def valid_verhoeff? Validatr::Verhoeff.valid? self end