Why Functional Programming Got Me

From object-oriented to functional programming Some Background In the first years of my career I aimed to master OOP as provided by C++98. What I knew about programming at that time brought me to the conclusion that writing high quality code is just a matter of being fluent in the language, the object-oriented paradigm and the design patterns around it. So, I was practicing, and as the years passed and my ability to write idiomatic object-oriented code improved I began to see its limits. To better understand my journey here, let me share another complementary learning path of mine that is about testing. The first embedded projects I joined didn’t have any automated tests. Instead, testing was done manually by using the device, observing its behavior and pressing its buttons. We developers did this ourselves to see if our changes worked and a dedicated test department did so all day to “ensure” the device generally behaves as expected. In a later embedded project two colleagues were pra