Create and edit online Excel files from your application — Microsoft’s Excel has been one the biggest applications to be ever released for business software. Even today, in a world with ‘big data’, ‘data lakes’ and more fancy buzzwords a lot of companies still primarily use Excel for their administration and Business Intelligence. And even if if tools like Power…

Make your React application part of the Microsoft 365 ecosystem — The Microsoft 365 platform has really taken of in the last decade with a lot of transitional enterprises finally moving their IT-landscape to the cloud. For developers this means that there is more and more value to be gained by integrating their applications with those cloud environments. …

Cross-Origin Requests are a part of the HTTP specification that has driven many developers to the limits of their sanity for how seemingly complex it is to make two websites talk with each other. In principle CORS actually exists to make this easier: it allows an opt-out for the same-origin…

In modern web development seeing data on websites update in realtime is very common. Look for example at the courier on the map of your Takeaway order or at the ETA on a track-and-trace page for the delivery of your new shoes. …

Creating a collection library for continuations — Last week I published an article on continuations in TypeScript. In that article, I mentioned that continuations (unlike promises) act like collections of values that start existing over time. In this article I want to explore this further and see how much your traditional array has in common with continuations. …

Abstracting common patterns in TypeScript — A major challenge while developing an user interface is dealing with the events that are triggered by user interaction. Not only are there often many possible events that can occur at any given time, the order in which events get triggered is also variable (or they can happen simultaneously). Outside…

Sorted and heap-based priority queues explained — Queues and stacks are used in programming to process a collection of items in a certain order. Those data structures work either with a first-in-first-out or last-in-first-out system in which the order of processing is always directly coupled to the order of insertion. However, sometimes you need to have more…