Do I need to specify providers in the child component?

Question

Angular

Do I need to re-specify the dependency (service) in providers=[Service]if it has already been defined in the main module or the child module in which the component is imported?

Answer 1

Here everything is described in detail https://angular.io/guide/providers
Here is a brief extract:
To answer your question: no, you don't need it if the service is already declared in the module.