提供平台与根

Question

I am struggling to see which one of the root and the platform options for providedIn in a service is better.

Both make a service available in the whole application, the latter through a service and the former through the root injector. Any advice on this?

Answer 1

The difference between the root and any as per offical documentation :

• root : The application-level injector in most apps.

• platform : A special singleton platform injector shared by all applications on the page.

• any : The NgModule injector that receives the resolution.

For more details please refer this article .

Is a service considered a singleton in the case that I use any ? - No

To go back to the original question between root & platform , when using a single application in your project, it doesn't change anything performance wise.