Is there any lifecycle hook like [removed] in Angular2?

Question

Is there any lifecycle hook like window.onbeforeunload in Angular2? I already googled and searched on stackoverflow, but found nothing

Answer 1

This worked for me. Defined in the page component constructor

window.addEventListener("beforeunload", (event) => {
   event.preventDefault();
   event.returnValue = "Unsaved modifications";
   return event;
});

Define the returnValue only if you want to prompt user before unload.

Work only if the user interract with the page (e.g. click).