In many discussions about FP - especially about purely functional programming - there are talks about IO monad, IO type and so on. Its users’ argument on how it is better than your standard imperative approach, how it helps reason, encapsulate side-effects and design more elegant programs. On the other hand, its opponents argue, that programs are side-effectful by nature, so you would end up with something that needs IO for like 80% of the codebase while learning curve for newcomers would g...| kubuszok.com
So, we parsed an input - file, stream of characters or string - and we got a nicely structured data in the form of a tree and/or an algebraic data type. What now?| kubuszok.com
As soon as you start mentioning functional programming, monads pops out as something that you have to know. However, hardly anyone is good at explaining what a monad is. That is why we’ll try to get some intuition about it without defining it.| kubuszok.com
While algebras are something we (programmers) rely on in our everyday work, we don’t always use them knowingly. Functional programming, however, has a relatively high number of programmers, that care about correctness and mathematical formalism, that leads to it.It is no surprise that it was FP that explored the idea that if you perceive your program as a pipeline of operations, you could provide stronger guarantees if you had a tools to define such pipelines mathematically.| kubuszok.com
If you work with anything that can be modeled mathematically, you most likely know that many things you work can be expressed with algebras. However, if you are not a graduate of a computer science course or similar you might not know how ubiquitous they are and how often you rely on some of them. (And I don’t mean F-algebras and FP-concepts). So what are algebras and where can we meet some most common of them?| kubuszok.com
The pure asynchronous runtime for Scala| typelevel.org
This Java tutorial describes exceptions, basic input/output, concurrency, regular expressions, and the platform environment| docs.oracle.com
