nix-helpers: 2e599ccc6a9a8f514a3d43c3e24761379fa6607b

     1: { lib, reverse }:
     2: 
     3: with lib;
     4: with rec { go = x: concatStringsSep "" (reverse (stringToCharacters x)); };
     5: assert go "hello" == "olleh";
     6: assert go "" == "";
     7: go