stuff like Intermediate Algorithm Scripting: Spinal Tap Case
the wording is so little you are not going to understand the problem without reading the testing section or hints.
and some of the problems cannot be understood even after reading the solution. the solution description does not particularly help understanding how it is coded that way either.
(1) we use .filter() to filter out the array
(2) we use .map() to map the source to another solution.
nope, sorry. this kind of description wont help. it is really like putting a sign up saying “this is a sign”
it is coming to a point where googling for an solution and reading somewhere else give better support than fcc. in which fcc could use a lot of rework and be better.