[theshrike79]

Here's some expressive code. If you aren't familiar with Ruby, how long would it take for you to decipher what that does?

  def sum_eq_n?(arr, n)
    return true if arr.empty? && n == 0
    arr.product(arr).reject { |a,b| a == b }.any? { |a,b| a + b == n }
  end

The exact same code in Go would span multiple lines, but would most likely only be constructed of a few basic programming idioms that every programmer with a few months of experience can identify.

Code is read 10x more often than written, it should be easy to read and skim through. "Expressiveness" of code is a quick way to get incomprehensible crap that works, but no-one but the creator can decipher.

[apta]

> If you aren't familiar with Ruby, how long would it take for you to decipher what that does?

Why would I not be familiar with the language of the code base I'm working with? This is a fallacy.

Secondly, I don't use Ruby, and from what I can tell, it's finding if any two non-equal elements in a given array sum up to a given number n.

I worked on several golang projects. It gets tedious and messy very quickly seeing code bases littered with one-use functions with what basically amount to map/filter calls being expanded into multiple line for loops. Not to mention it makes exploratory debugging much more tedious.