Haskell enters the chat

Haskell (and OCaml I suppose two) are outliers though as one is supposed to have a small functions for single case. It's also super easy to find them and haskell-language-server can even suggest which functions you want based on signatures you have.

But in other languages I agree - it's abomination and actually hurt developers with lower working memory (e.g. neuroatypical ones).

It’s because maths are the ultimate abstraction. It’s timeless and corner cases (almost) fully understood. Ok maybe not, but at least relative to whatever JavaScript developers are reinventing for the thousand time.