如何检查对象是否是 Express.Router 的实例？

Question

谁能告诉我如何正确执行此操作？

import {Router} from 'express';
import assert from 'assert'

let routerInstance = new Router();

assert(routerInstance instanceof Router); // this is throwing an error

感谢您的帮助！

Answer 1

通过一些小实验，我改为这样做：

Object.getPrototypeOf(routerInstance) == express.Router; //this returns true

如何检查对象是否是 Express.Router 的实例？

How to check if object is an instance of Express.Router?

node.js

express

type-assertion