@angular/core

ClassProvider

interface

Configures the Injector to return an instance of useClass for a token.

  
    interface ClassProvider {  override useClass: Type<any>;}}

Note that following two providers are not equal:

Multi-value example

provide

any

An injection token. (Typically an instance of Type or InjectionToken, but can be any).

multi

boolean

When true, injector returns an array of instances. This is useful to allow multiple providers spread across many files to provide configuration information to a common token.

useClass

Type<any>

Class to instantiate for the token.