如何在TypeScript中導出多個對象實例？

Question

我在TypeScript中構建一個庫，該庫使用依賴注入系統（inversifyJS）來構建自身並在內部解析依賴關系。 我遇到的問題是 - 我想將多個實例從注入系統暴露給庫的使用者。

目前我想做的是：

import kernel from "./src/inversify.config";
import EntityManager from './src/manager/entityManager.service';
import StorageService from './src/storage/storage.service';
import LanguageService from './src/language/language.service';

export { kernel.get<EntityManager>(EntityManager) as EntityManagerInstance };
export { kernel.get<EntityManager>(LanguageService) as LanguageServiceInstance };
export { kernel.get<EntityManager>(StorageService) as StorageServiceInstance };

我看到的解決方案是使用Facade導出類型並在以后訪問它們：

import EntityManager from './src/manager/entityManager.service';
import StorageService from './src/storage/storage.service';
import LanguageService from './src/language/language.service';
import InjectionFacade from './utils/injection.facede';

export { EntityManager, LanguageService, StorageService, InjectiorFacade }; 
// Usage: 
// import {InjectionFacade, StorageService} from 'entity-manager';
// let injectionFacade: InjectionFacade = InjectionFacade.createAndResolve();
// let storageService: StorageService = injectionFacade.getStorageService();

但問題是我有一個無用的抽象

有沒有辦法在不丟失類型定義和導出即用型對象的情況下實現這種解決方案？

Answer 1

您想要使用多聲明變量，例如

export const
    EntityManagerInstance = kernel.get<EntityManager>(EntityManager),
    LanguageServiceInstance = kernel.get<EntityManager>(LanguageService),
    StorageServiceInstance = kernel.get<EntityManager>(StorageService);