"Don’t hide higher-order functions Higher-order functions are great, so try not to hide them away. If you’re working with collections, you should prefer to wri

"Don’t hide higher-order functions Higher-order functions are great, so try not to hide them away. If you’re working with collections, you should prefer to write functions that operate on a single entity rather than the collection itself." Excellent advice -- and not just for Elixir. I find myself applying this technique often in Python, for example. While the example is fairly simple and contrived, the consequences they note ring true.