one_of

Checks that the value is one of the allowed values. Values are compared as strings, and the output is the value from the rule.

Error codes: NOT_ALLOWED_VALUE, FORMAT_ERROR

Live example · edit rules or inputOpen in playground

rules

{
    gender: { one_of: ['male', 'female'] }
}

{ gender: { one_of: ['male', 'female'] } }

input

{
    gender: 'unknown'
}

{ gender: 'unknown' }

Invaliderrors

{
  "gender": "NOT_ALLOWED_VALUE"
}

The values were wrapped in an extra list before v0.4. Both syntaxes are supported:

{ first_name: { one_of: ['Anton', 'Igor'] } }   // new syntax (introduced in v0.4)
{ first_name: { one_of: [['Anton', 'Igor']] } } // old syntax