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import 'package:equatable/equatable.dart';
class Credentials extends Equatable {
final String username;
final String password;
const Credentials({this.username, this.password});
@override
List<Object> get props => [username, password];
}
class EquatableDateTime extends DateTime with EquatableMixin {
EquatableDateTime(
int year, [
int month = 1,
int day = 1,
int hour = 0,
int minute = 0,
int second = 0,
int millisecond = 0,
int microsecond = 0,
]) : super(year, month, day, hour, minute, second, millisecond, microsecond);
@override
List get props {
return [year, month, day, hour, minute, second, millisecond, microsecond];
}
}
void main() {
// Extending Equatable
final credentialsA = Credentials(username: 'Joe', password: 'password123');
final credentialsB = Credentials(username: 'Bob', password: 'password!');
final credentialsC = Credentials(username: 'Bob', password: 'password!');
print(credentialsA == credentialsA); // true
print(credentialsB == credentialsB); // true
print(credentialsC == credentialsC); // true
print(credentialsA == credentialsB); // false
print(credentialsB == credentialsC); // true
// Equatable Mixin
final dateTimeA = EquatableDateTime(2019);
final dateTimeB = EquatableDateTime(2019, 2, 20, 19, 46);
final dateTimeC = EquatableDateTime(2019, 2, 20, 19, 46);
print(dateTimeA == dateTimeA); // true
print(dateTimeB == dateTimeB); // true
print(dateTimeC == dateTimeC); // true
print(dateTimeA == dateTimeB); // false
print(dateTimeB == dateTimeC); // true
}
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