输入 mongoose.connect

Question

我正在尝试为此找到一种类型：export const connectToDatabase = ()/* here */ => mongoose.connect(uri, {  useNewUrlParser: true,  useUnifiedTopology: true,});到目前为止，我的代码编辑器建议这样做：export const connectToDatabase = ():    Promise<typeof mongoose> => mongoose.connect(uri, {  useNewUrlParser: true,  useUnifiedTopology: true,});这很愚蠢。我不希望这种类型存在Promise<typeof mongoose>，而且它不可能是所需的解决方案。那么这里的正确类型是什么？我所能找到的只是ConnectionUseDbOptions，ConnectionOptions这是行不通的。那么这里正确的类型是什么？

Answer 1

根据：index.d.ts_@types/mongoose

type Mongoose = typeof mongoose;

...

export function connect(uris: string, options: ConnectionOptions, callback: (err: mongodb.MongoError) => void): Promise<Mongoose>;

export function connect(uris: string, callback: (err: mongodb.MongoError) => void): Promise<Mongoose>;

export function connect(uris: string, options?: ConnectionOptions): Promise<Mongoose>;

所以返回类型肯定是Promise<Mongoose>orPromise<type of mongoose>