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Interface NormalizedProvider

Hierarchy

Index

Properties

Type

Type: FunctionConstructor = Function
whatitdoes

Represents a type that a Component or other object is instances of.

description

An example of a Type is MyCustomComponent class, which in JavaScript is be represented by the MyCustomComponent constructor function.

stable

Optional deps

deps: any[]

A list of tokens which need to be resolved by the injector. The list of values is then used as arguments to the useFactory function.

Optional multi

multi: boolean

If true, then 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.

Example

{@example core/di/ts/provider_spec.ts region='MultiProviderAspect'}

provide

provide: any

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

useClass

useClass: Type<any>

Class to instantiate for the token.

useExisting

useExisting: any

Existing token to return. (equivalent to injector.get(useExisting))

useFactory

useFactory: Function

A function to invoke to create a value for this token. The function is invoked with resolved values of tokens in the deps field.

useValue

useValue: any

The value to inject.

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