This is poorly specified. You can't tell exactly what it wants you to do for many types of strings without trying to run it.

( JS, Haskell, possibly others )

"" => ""

This is not tested.

This kata is a subject to deduplication process here: https://github.com/codewars/content-issues/issues/178.
Please join the discussion to help us identify duplicate kata and retire them.

Improved Lua translation!

Rust translation:

Add a strings with multibyte character like "50¢". It is "50¢".len() == 4 because the cent symbol "¢" is two-byte character.

  assert_eq!(solution("50¢", 3), "50¢");
  assert_eq!(solution("¢1000", 3), "¢10...");

My code passed the testing phases but is showing up nonesense characters(like a square with cross in it) after some characters in my output when I attempt it. The characters aren't displaying in this comment so I'll just make a bracket at places that those strange characters appear.

Error Message :
Incorrect answer for input: "fhGdEgEaBdgeehehGghbheghGagcab"
Expected: "fh Gd Eg Ea Bdgeeheh Gghbhegh Gagcab"
Actual: "fh Gd() Eg() Ea() Bdgeeheh Gghbhegh Gagcab"

Perl Translation

Testing in ruby is not strong enough as invalid solutions like this can be easily ATTEMPT mash-buttoned through.

Needs random tests and sample tests, and tests shouldn't use Test.expect.

This output is not very good.

Needs definition of URL. (Preferably from an RFC.)

Not looking it up myself, because I fully expect tests to be .. informal.

Lack of test cases and clear definition of the problem..

quotes on href needed to be single quotes to pass, which is not specified in the details

could do with test cases