You can extend your Express.js server by writing custom middleware functions. These functions intercept every request and allow you to add custom functionality or filters. You can also pass the request to other middleware functions.
This article provides code examples on how to type your React web application using TypeScript. It covers different scenarios such as function components, class components, components with props, components with HTML props, and more.
If you're extending the `EventEmitter` class from Node.js and encounter the error TS2307 or TS2339, it means you're missing the Node.js type definitions. To fix this, install the typings by running `yarn add @types/node@12 --dev --tilde`. This solution has been tested with TypeScript 3.9.3 and Node.js 12.18.0 LTS.