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Five Ways to Reverse a String of Words (C#, Perl 5, Perl 6, Ruby, Haskell)

by eyepopslikeamosquito (Canon)
on Dec 12, 2006 at 12:27 UTC ( #589260=perlmeditation: print w/ replies, xml ) Need Help??

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  1. or download this
     "  one   two three four    "
    
  2. or download this
     "four three two one"
    
  3. or download this
     private static string reverseWords(string str) {
         string[] words = Array.FindAll<string>(str.Split(
    ...
             sb.Append(' ').Append(words[i]);
         return sb.ToString();
     }
    
  4. or download this
     Array.Reverse(words);
     return String.Join(" ", words);
    
  5. or download this
     sub reverseWords {
         join ' ', reverse split(' ', shift)
     }
    
  6. or download this
     sub reverseWords(Str $s) returns Str {
         $s.words.reverse.join(' ')
     }
    
  7. or download this
     def reverseWords(s)
         s.split.reverse.join(' ')
     end
    
  8. or download this
     reverseWords = unwords . reverse . words
    

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