interface
Configures the Injector
to return a value for a token.
interface ValueProvider extends ValueSansProvider { provide: any multi?: boolean // inherited from core/ValueSansProvider useValue: any }
Property | Description |
---|---|
provide: any | An injection token. Typically an instance of |
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. |
const injector = Injector.create({providers: [{provide: String, useValue: 'Hello'}]}); expect(injector.get(String)).toEqual('Hello');
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']);
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https://v12.angular.io/api/core/ValueProvider