# Notification Properties

* [`exception`](https://github.com/soufatn/rxjs-book/tree/bf8b6376d5d3357f915110c3a4f92267055843f3/content/notification/notification_properties/exception.html)
* [`hasValue`](https://github.com/soufatn/rxjs-book/tree/bf8b6376d5d3357f915110c3a4f92267055843f3/content/notification/notification_properties/hasvalue.html)
* [`kind`](https://github.com/soufatn/rxjs-book/tree/bf8b6376d5d3357f915110c3a4f92267055843f3/content/notification/notification_properties/kind.html)
* [`value`](https://github.com/soufatn/rxjs-book/tree/bf8b6376d5d3357f915110c3a4f92267055843f3/content/notification/notification_properties/value.html)