The notifier wire-frame
The Notifier is a little bit more sophisticated. It will use the Collector service to collect and the rating service to rate the collected items, and it does this job automatically in specific hours. It is like implementing a Linux cron job inside Angular.
Note
Please note we don't need the Collector and the Rating components for this wire-frame. Rather we need the mechanism that does the collecting and rating tasks. This situation should explain the difference between directives and components and the importance of each concept better. In Chapter 5, The Notifier Service- Creating Cron Jobs in Angular where we implement the service for this business logic - we will deal with the details of this requirement. There we will also discuss the dependency injection and child injectors in more details.
Let's say we want to be informed twice a day about all news which has a minimum rank of 8/10. Moreover, let's assume we want to be notified via e-mail and also we want to see...