Adão Júnior c4ae1f1b1b docs(guide/lifecycle-hooks): add Dart version of example
NOTE: The Dart version generates fewer lifecycle events than the TS version.
See angular/angular#6498 for details.

closes #733
2016-01-21 16:34:17 -08:00

22 lines
456 B
Dart

// #docregion
import 'package:angular2/angular2.dart';
import 'logger_service.dart';
int nextId = 1;
// Spy on any element to which it is applied.
// Usage: <div mySpy>...</div>
@Directive(selector: '[mySpy]')
class Spy implements OnInit, OnDestroy {
int _id = nextId++;
LoggerService _logger;
Spy(this._logger);
ngOnInit() => _logIt('onInit');
ngOnDestroy() => _logIt('onDestroy');
_logIt(String msg) => _logger.log('Spy #$_id $msg');
}