Is it possible to sort an array with the alphabet string in reverse?

**dgreenhouse** · Feb 28 '11, 07:08 AM

Are you saying you want to reverse each array element's string value first?

If so, maybe this will help:

Code:

function reverseReverseArray(array_in) {
  for (i=0; i<array_in.length; i++) {
    array_in[i] = reverseString(array_in[i]);
  }
  array_in.reverse();
}

function reverseString(s_in) {
    var s_out = "";
    var i = s_in.length;
    while (i>0) {
        s_out += s_in.substring(i-1,i);
        i--;
    }
    return s_out;
}

**seanh** · Feb 28 '11, 11:24 PM

Hi dgreenhouse,

Thank you so much for your response.

I'm not really sure what its called but here's an example with code:

If I input letter a then submit, then letter b and submit..., so I type: a , b, c, d, e

is it possible to get e, d, c, b, a

When I put your function which most likely 100% I'm using it wrong I get:
e, c, a, b, d

can you show me how to use your function I'm not really sure how the second function works.

Thank you again,
-sean.

Code:

<html>
  <head>
    <script type="text/javascript" language="javascript">
        var counter=0;
        var alpha =new Array();
      
	    function reverseAlpha() {
            var letterFromTxtBox;
              letterFromTxtBox = document.forms[0][0].value;
              alpha[counter]=letterFromTxtBox;         
           lastLetter=alpha[counter];
	      
	        if ((alpha )){
               	   counter++;
				     alert(" letters: " +  alpha.reverse()+"\n"+ " Last letter typed: " + lastLetter ) ;
            }      
        } 
 
   function reverseReverseArray(alpha) {
    for (i=0; i<alpha.length; i++) {
       alpha[i] = reverseString(alpha[i]);
     }
    alpha.reverse();
   }
    
   function reverseString(s_in) {
       var s_out = "";
       var i = s_in.length;
       while (i>0) {
           s_out += s_in.substring(i-1,i);
           i--;
       }
       return s_out;
   }
   
  </script>
  </head>

  <body>
      <form >
          Letter:  <input type="text" name="textBox" /><br />
             <input type="button"  value="Submit" onClick="reverseAlpha();" name="Submit" />
      </form>

  </body>
</html>

**dgreenhouse** · Mar 1 '11, 01:40 AM

You'll need to store the values then call reverseString() when you've completed taking input.

**seanh** · Mar 1 '11, 02:50 AM

Hi dgreenhouse,
Thank you so much for your kind reply and generosity with your time.
-sean

Is it possible to sort an array with the alphabet string in reverse?

Is it possible to sort an array with the alphabet string in reverse?

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