guards questions

Angular Guards are interfaces that allow developers to control navigation to and from routes in an Angular application. They are used to protect routes based on conditions such as user authentication or authorization. There are several types of guards: `CanActivate` (to decide if a route can be activated), `CanDeactivate` (to decide if a route can be deactivated), `Resolve` (to fetch data before a route is activated), and `CanLoad` (to decide if a module can be lazily loaded). Implementing guards helps ensure that users have the proper permissions and data before accessing certain parts of the application.