#angularpart15

[techpointfundamentals]

Angular Interview Questions and Answers: Part 15

This is the 15th part of the Angular Interview Questions and Answers Series. In this part we will discuss the answers of the following Angular Questions:

Q171. What is Angular Service? What is the difference between a component and a service? Q172. What is the difference between Injector, @Injectable, and @Inject in Angular? Q173. What are the different places to configure the Injectors? How do you configure injectors with providers at different levels? Q174. What is a provider in Angular DI? Q175. What is the scope of a service in Angular? Q176. How do you restrict a provider scope to a Module only? Q177. Can you share services using Modules in Angular? Q178. Why is the service provided in a feature module visible everywhere in the application? Q179. Why is the service provided in a lazy-loaded module visible only to that module? Q180. Why does lazy loading always create a child injector? Q181. How can you check and tell if a NgModule or service was previously loaded? Q182. What is the difference between the service() and factory() functions in Angular?