What is the difference between providedIn any and root

Issue

In Angular 9 the injectable decorator option providedIn has a new value called any. What is the difference between root and any?

Is a service considered a singleton in the case that I use any?

@Injectable({providedIn: 'any'})
class UsefulService {
}

Solution

I think provided answers are not really clear. However, @jkonst, @schrödingcöder and @Bruce are correct in the comment.

For any one sent here by Google,

any doesn't Provides a unique instance in every module. (should say only in every shared module)

Which means one instance in every inject scope

from https://angular.io/guide/providers

With providedIn: 'any', all eagerly loaded modules share a singleton instance; however, lazy loaded modules each get their own unique instance, as shown in the following diagram.

Answered By - maxisam