alphaNumeric static method

FormFieldValidator<String> alphaNumeric({
  1. String? message,
})

Implementation

static FormFieldValidator<String> alphaNumeric({String? message}) {
  return (fieldValue) {
    if (Validator.isAlphaNumeric(fieldValue)) {
      return null;
    } else {
      return message ?? "Field must contain both alphabets and numbers";
    }
  };
}