* Keeping a function easy to understand without having to think about the rest of the codebase * Minimizing non-local state * Keeping things testable * Keepi

* Keeping a function easy to understand without having to think about the rest of the codebase * Minimizing non-local state * Keeping things testable * Keeping code reusable without having to find and copy a lot of other code from a codebase/refactor completely Note: I am not talking about DI frameworks here, because I don't like them.