Services.md

SERVICES:-- Acts as a Central Repository, as a Central Buisness Unit, Where You can Store, Where you can Centralize Code in.

Why to Use Services...

*To reduce the code in Different Files.

Hierarchical Injector-- a dependency is something a class of ours will depend on, INJECTS a Instance of Class into the Component.

#We inform Angular that we Require such an Instance By Adding a constructor to the class, to the component where we want to use.

#1 AppModule -- Same Instance of Service is Available Application-Wide.

#2 AppComponent -- Same Instance of Service is Available for all Components(but Not For Other Services).

#3 -- Any other Component -- Same Instance of Service is Available for the Component and All its Child Components.

When we Want to Use a SERVICE into another SERVICE we need to ADD the Decorator @Injectable() into the SERVICE Where we want to Inject?use the Service.