TypeScript Blog

TypeScript 3.4 introduced const assertions, which allow you to claim a value as immutable. This is useful when working with arrays, as it prevents new values from being added to an existing array.

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.

You can use Chrome's DevTools to debug Node.js applications. To do this, you need to set your Node.js app as a remote target using the `--inspect` flag when starting the `node` process. Once your app is registered, you can open the DevTools for Node in Google Chrome.

Learn how to add CSS styling to React Components with TypeScript. This tutorial will teach you how to structure your components, type your props, and avoid error TS2739. It also introduces CSS Modules.

TypeScript's compiler doesn't allow custom type annotations for errors in try-catch statements. The simplest type guard is a conditional block with an instanceof check. Other type guards are presented in this article.