Why I love learning functional programming

Yet another blog post on why learning functional programming is fun and useful

This is the first part of a series on my journey in learning functional programming (FP). In this first part, I'd like to share why I spend…

How I accidentally learned functional programming

By writing classes with too many responsibilities.

I had two courses in programming at the university, in Java and C. The Java course taught object-oriented programming: objects, classes…

Introduction to property-based testing

Verify assumptions about your code.

Property-based testing is a testing paradigm supporting regular example-based unit tests. In the Pragmatic Programmer book, the authors…

Introduction to composable optics with monocle-ts

With io-ts, Elvis and Metallica.

Optics are a functional programming toolbox for zooming into nested data structures. They are designed for composability, allowing you to…

Covariance and contravariance in generic types

With Python and corgis.

Static typing is awesome. It helps to detect bugs, acts as in-code documentation and makes development more enjoyable. Recently I've started…

Using fp-ts for HTTP requests and validation

How to use TaskEither, flow and pipe for smooth pipelines.

fp-ts is a great TypeScript library for functional programming. I haven't found that many real world usage examples out there, so I thought…