Not a native in ruby but made an attempt to update test fixture. It works with MRI 3.0 now, let me know if there are any more changes that need to be done

You count spaces from both sides.

'e' => 3 + 0 = 3

'g' => 2 + 3 = 5

Thank you, fixed!

Depends on the language you are working with. Just print the argument of the loneliest function.

In case of js it's

loneliest(str) {
  console.log(str);
}

Approved, thank you! And that's a really nice description :^)

marking as resolved

Oh, translation problems, sorry for that. Should be fixed now :^)

Approved! Thanks for the translation.

Yup, i added a note now. Thank you!

This solution is actually supposed to pass. Strings in tests contain only unique characters from a to z, and many of people's solutions actually rely on this. They won't pass anymore if I change the tests.

Fixed. Completely forgot about that, thank you.

Done. Left note about the order of characters (just in case).

Changed. The function should always return an array now.

Added tests for repeating characters, thanks.

Using mocha for testing now. Error messages are short. The initial solution does not time out anymore, as well as a complete solution.

(Node 8 still takes way more time than 10 or 12 though. (7000ms vs 1000ms) and i couldn't figure out why.) But it seems the issue is fixed, waiting for your opinion.