Part Nine | Functional Programming Through Elixir: Module Organization vs Class Hierarchies
Where Does Code Live?
In OOP, the answer is always: in a class. Classes are the organizing unit for everything. They hold state, define behavior, inherit from parent classes, and form hierarchies that model relationships between concepts.
In Elixir, the organizing unit is the module. Modules hold functions. That’s it. They don’t hold state, they don’t inherit from other modules, and they don’t form hierarchies. This changes how you think about organizing code.