Anil Singh | Code-sample.com

What classes should I add to module's declarations? We can add the declarable classes like components, directives and pipes in the module's declarations list and we can add only - components, directives and pipes classes in the @NgModule. Stayed Informed – Angular 4 Documentations with Example What classes should I not add to module's declarations? We do not declare - Module, Service, objects, strings, numbers, functions, entity models, configurations, business logic, and helper classes  in the module's declarations. Example – export const sharedConfig: NgModule = { bootstrap : [ AppComponent ], declarations : [ AppComponent, NavMenuComponent, HomeComponent, UserComponent, AccountDetailComponent, BarCodePipe ], imports : [ RouterModule.forRoot([ { path : '' , redirectTo : 'home' , pathMatch : 'full' }, { path : 'home...