values.filter is not a function

[ismael7]

'patient.FechaDeNacimiento': {
includes: ['año/mes/día'],
},
Show this error values.filter is not a function

includes: function includes (value, args) {
args.value = value;
var values = args.values;
var msg = '{{ value }} is not one of the following: {{ values.join(", ") }}';
return [!!values.filter(function (option) { return option === value; }).length, msg]
},