validate method

  1. @override
bool validate(
  1. String value
)
override

A function that should be implemented and it represents the validation of the value. It should return Boolean indicating that the value passed pass the validation or not.

Implementation

@override
bool validate(String value) {
  return (value.length >= _min && value.length < _max) ||
      (value.length > _min && value.length <= _max);
}