4

This question, which was just closed, seems appropriate to me. My reasons:

  • the asker is trying to learn about functional programming
  • when reading an article about FP, the asker wasn't able to understand an example due to a key missing concept
  • the intent of the question is to understand the concepts behind implementing an algorithm in FP -- not just getting some code

In short, I think it's an on-topic, valuable question (unless a duplicate exists, although I didn't find one), and I've upvoted it.

Is it an appropriate question? If not, can it be improved to meet Programmers' standards (and how)?

2

The original phrasing was a bit not constructive. That said, I fully agree that the core question is about understanding the concepts involved, which is what Programmers is all about:

Programmers — Stack Exchange is a site for professional programmers who are interested in getting expert answers on conceptual questions about software development.

Edited it a bit and re-opened. The article the question is quoting is misleading (and... stupid), but that's not the asker's fault.

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