The unique identifier of the current navigation.

The target URL passed into the Router#navigateByUrl() call before navigation. This is the value before the router has parsed or applied redirects to it.

The extracted URL after redirects have been applied. This URL may not be available immediately, therefore this property can be undefined. It is guaranteed to be set after the RoutesRecognized event fires.

Identifies how this navigation was triggered.

The previously successful Navigation object. Only one previous navigation is available, therefore this previous Navigation object has a null value for its own previousNavigation.

Aborts the navigation if it has not yet been completed or reached the point where routes are being activated. This function is a no-op if the navigation is beyond the point where it can be aborted.