Toggling Templates Dynamically

We have already seen various use cases for attribute directives. In this lesson, we will learn about structural directives that are not so widely used. A typical scenario in enterprise Angular applications is that users should have access to certain application parts according to their role. We may think that we could use the ngIf built-in directive for this. It would be valid for a simple case, but usually, checking a role involves calling some service to get the current user and extracting their role. We could create a more specific structural directive:

1. Run the following Angular CLI command to create a permission directive:

Note: The command below is for creating a directive on the local machine using the Angular CLI.