digits

Checks that the value consists of ASCII digits 0-9 only. Unlike positive_integer, leading zeros are kept and the output is a string.

Error codes: NOT_DIGITS, FORMAT_ERROR

Live example · edit rules or inputOpen in playground

rules

{
    zip: 'digits',
    otp: ['digits', { length_equal: 6 }]
}

{ zip: 'digits', otp: ['digits', { length_equal: 6 }] }

input

{
    zip: '01001',
    otp: '12a456'
}

{ zip: '01001', otp: '12a456' }

Invaliderrors

{
  "otp": "NOT_DIGITS"
}

The string form of the value must be one or more digits: "007" gives "007", 7 gives "7".

{ zip: 'digits', otp: ['digits', { length_equal: 6 }] }