How can I use the CanDeactivate guard in Angular?
An example of an AI chatbot conversation about using CanDeactivate guard in Angular.
How can I use the CanDeactivate guard in Angular?
The CanDeactivate guard in Angular is used to prevent users from navigating away from a component if there are unsaved changes. You can implement it by creating a guard service that implements the CanDeactivate interface.
Can you show me an example of how to implement it?
Sure! First, create a guard using the Angular CLI: ng generate guard can-deactivate. Then, implement the canDeactivate method to check for unsaved changes.
What should the canDeactivate method return?
The canDeactivate method should return a boolean or an observable/promise that resolves to a boolean. It determines whether the user can navigate away.
How do I apply this guard to a route?
You can apply the guard in your routing module by adding it to the canDeactivate property of the route configuration.
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