Reversing a String : String « Language Basics « JavaScript DHTML

Reversing a String


<SCRIPT LANGUAGE="JavaScript1.2">

function revString(str) { 
   var retStr = ""; 
   for (i=str.length - 1 ; i > - 1 ; i--){ 
      retStr += str.substr(i,1); 
   return retStr; 
<INPUT type=button value="Reverse String" 
   onClick="document.theForm.results.value = revString(document.theForm.inStr.value)";>

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