problem-specifications/exercises/strain/description.md at 578f37a3bde48be53726747c9ce3158102bb2880 · exercism/problem-specifications · GitHub references functions twice in that line, but before that point, keep and discard are repeatedly referenced to as operations. I’d like to change the references to functions to instead be operations for consistency.
I’d also like to propose moving this part to near the top.
“Implement the keep and discard operation on collections.
Given a collection and a predicate on the collection’s elements, keep returns a new collection containing those elements where the predicate is true, while discard returns a new collection containing those elements where the predicate is false.
The operations may be called keep and discard, or they may need different names in order to not clash with existing operations or concepts in your language.”
The content that follows is a dive into how keep and discard both work so it’s not obvious without reading the whole instructions that the names might be different. I’m certainly guilty of not reading the strain directions before.