notEquals method Null safety
- TextEditingController controller,
- {String message = "Validator.notEquals"}
Returns a Validator that accepts a value that is not equal to the controller
's text.
Implementation
Validator notEquals(
TextEditingController controller, {
String message = "Validator.notEquals",
}) {
return add(
(value) => value == controller.text ? message : null,
);
}