luhn

Checks that the value is at least 2 ASCII digits and that its Luhn mod 10 checksum is 0.

Error codes: WRONG_CHECKSUM, FORMAT_ERROR

Live example · edit rules or inputOpen in playground

rules

{
    code: 'luhn'
}

{
    code: 'luhn'
}

input

{
    code: '79927398710'
}

{
    code: '79927398710'
}

Invaliderrors

{
  "code": "WRONG_CHECKSUM"
}

79927398713 passes, 79927398710 does not. The value is checked as it is: spaces and dashes are not removed, see Checksum rules.

For payment card numbers, use credit_card.

luhn ​