Does the question "Using Keep" in the page https://courses.alura.online/course/clojure-collections/task/204 has a redaction error?
The correct answer shown says:
Keep is a 'map' and a 'filter'
The 'map' is applied 'f' and the 'reduce' filters all the non-null elements
Shouldn't it be?
The 'map' is applied 'f' and the 'filter' filters out all the non-null elements