Function isExistingProvider

packages/core/src/di/provider_collection.ts:413–415

(value: SingleProvider)

}

export function isExistingProvider(value: SingleProvider): value is ExistingProvider {
  return !!(value && (value as ExistingProvider).useExisting);
}

export function isFactoryProvider(value: SingleProvider): value is FactoryProvider {
  return !!(value && (value as FactoryProvider).useFactory);