Optional_ProtectedactiveProtecteddataOptionaleditorProtectedsubscriptionStaticoptionsProtectedemailProtectednameProtectedprofileOptionalaction: unknownA callback method that performs custom clean-up, invoked immediately before a directive, pipe, or service instance is destroyed.
Protectedsubscribe
A callback method that is invoked immediately after Angular has completed initialization of a component's view. It is invoked only once when the view is instantiated.