@angular/core

ValueProvider

interface

stable

Configures the Injector to return a value for a token.

API

  interface ValueProvider extends ValueSansProvider {}

provide

any

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

multi

boolean | undefined

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.

useValue

any

The value to inject.

Usage Notes

Example

const injector = Injector.create({providers: [{provide: String, useValue: 'Hello'}]}); expect(injector.get(String)).toEqual('Hello');

Multi-value example

const locale = new InjectionToken<string[]>('locale'); const injector = Injector.create({ providers: [ {provide: locale, multi: true, useValue: 'en'}, {provide: locale, multi: true, useValue: 'sk'}, ], }); const locales: string[] = injector.get(locale); expect(locales).toEqual(['en', 'sk']);