Functional programming with arrays Although JavaScript’s arrays are very capable out of the box, the functional paradigm improves the clarity and maintainability of array code.

Functional programming might seem intimidating and overly academic at first, but once you get the hang of it, it helps you build more maintainable software, making the process more enjoyable.

Built on top of Erlang, Elixir makes it easier to write good functional programming code and harder to mess it up. Here's a first look at this language on the rise.

According to Sperber, functional programming enables late architecture and reduces coupling compared to OOP. In order to defer macroarchitecture decisions, we must always decouple, Sperber argued.