So, you’re wondering which programming language is the absolute hardest to learn in 2026? It’s a question that pops up a lot, ...

Abstract: Coproducts of monads on $\Set$ have arisen in both the study of computational effects and universal algebra. We describe coproducts of consistent monads on $\Set$ by an initial algebra ...

Congratulations on deciding to participate in 30 days of JavaScript programming challenge. In this challenge, you will learn everything you need to be a JavaScript programmer, and in general, the ...

JavaScript is a great language. It has a simple syntax, large ecosystem and, what is most important, a great community. At the same time, we all know that JavaScript is quite a funny language with ...

Note July 6th 2025: this post’s original title was “A list is a monad”. It has been changed to “List is a monad”. Note Sept 13 2025: this post has been revised based on the feedback from the Hacker ...