Using a Do/While Loop to Reverse a Text String : JavaScript DHTML examples (example source code) » Language Basics » While

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Using a Do/While Loop to Reverse a Text String

Please note that some example is only working under IE or Firefox.

/*

Learn How to Program Using Any Web Browser
by Harold Davis 

Apress CopyRight 2004

ISBN: 1590591135
*/
<HTML>
<BODY>
<H1>
<SCRIPT> 
      var newString = ""; 
      var theString = prompt("Enter a string for reversal",""); 
      var counter = theString.length; 
      do 
      { 
        newString += theString.substring(counter-1, counter); 
        counter--; 
      } 
      while (counter > 0 ); 
      document.write(theString + " reversed is " + newString + "!"); 
   </SCRIPT>
</H1>
</BODY>
</HTML>
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