randomizing a word

**doobster** · 05-05-2003 08:51 PM

Hello,

I have a form which contains two fields. The first one accepts a word. The second one is the word scrambled. Currently I have to manually scramble the word.

What I would like to do is after the first field looses focus that it can call a javascript function that automatically scrambles that word.

i.e.

apple -> palpe

Help would be appreciated.

**Jona** · 05-05-2003 08:55 PM

Post your current code.

<input type=text onblur="scramble()"> would be an example of an onblur function.

**doobster** · 05-05-2003 09:25 PM

Sorry, I know how to call the function. But I need the code for the function

**Jona** · 05-05-2003 10:00 PM

OK, well, do you have any code already? Or are we doing this from scratch?

**SniperX** · 05-06-2003 12:16 AM

Hi -
I'm not too sure, but this might work...

function scramble {
var someText = document.form.inputName.value;
var index=0;
var tempString;
usedIndexes = new Array();
for (var i=0; i<someText.length(); i++) {
index=Math.random() * someText.length();
//check if the index has not already been used - if it has, generate a new one....
tempString[i] = someText[index];
}

//then let the value in the textbox = the generated value...
document.form.inputName.value = tempString;
}

Don't know if that will work - i am but a lowly C/C++ programmer...

Regards MW

**Jona** · 05-06-2003 12:54 AM

SniperX, I changed your code a little and came up with this. Doesn't work right, but I think it's a start...

<html><head><script>
function sink(){
var someText = document.x.l.value;
var tempString = new Array(someText.length);
for(var i=0;i<someText.length;i++)
index=Math.round(Math.random()*someText.length);
tempString[i] = someText.charAt(index);
document.x.l.value = tempString;
}
</script></head>
<body><form name="x">
<input type=text name="l"><br>
<input type=button onclick="sink()" value="Scramble">
</form></body></html>

**SniperX** · 05-06-2003 12:58 AM

Don't worry about changing my code, its da only way to learn

**doobster** · 05-06-2003 08:59 AM

Hi guys, thanks for the replies.

I tested both code and it kind of just hangs and never puts any values in. I will show you what I have for code.

PHP Code:


 <script language="Javascript">

 <!--

function scramble() {

   var someText = document.addword.word.value; 

   var index=0; 

   var tempString; 

   for(var i=0;i<someText.length;i++) 

      index=Math.round(Math.random()*someText.length); 

      tempString[i] = someText.charAt(index); 

   } 



   //then let the value in the textbox = the generated value... 

   document.addword.letters.value = tempString;

}

 //-->

 </script>



 <form action=admin.php?cmd=addword method=post name=addword>

  <input type=hidden name=form value=sent>



  <table border=0>

   <tr>

      <td><b>Five Letter Word: </b></td>

      <td><input type=text name=word maxlength=5></td>

   </tr>

   <tr>

      <td><b>Five Random Letters From Word: </b></td>

      <td><input type=text name=letters maxlength=5></td>

   </tr>

   <tr>

      <td><input type=submit value="Add Word"></td>

      <td><input type=button onClick="scramble()" value="Scramble"> 

   </tr>

  </table>

 </form>

**Jona** · 05-06-2003 10:24 PM

Looks, great. We just have to work on the Javascript part now. Anyhow, I've created my own 'scramble' script that I worked on for a few minutes, but it doesn't work yet...

**Jona** · 08-02-2004 10:41 PM

I know this thread is really old, but I figured I'd revive it and provide a solution, since Doobster never replied saying he found one, and I never provided one. So here is working code.

Code:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML Strict 1.0//EN"
  "http://www.w3.org/TR/xhtml1/dtd/xhtml1-strict.dtd">
<html lang="en" xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">
 <head>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
  <title>JavaScript Example</title>
 </head>
 <body>
  <h1>JavaScript Example</h1>
  <script type="text/javascript">
     /**********************************************************/
    /*Copyright Jonathan Fenocchi		              */
   /* http://cmm.sonoracabinets.com/jona/index.php           */
  /*  or http://cmm.rgabbard.com/		            */
 /*   Do not use without direct permission from Jonathan   */
/**********************************************************/
  function get(data){
   queryStr = location.search;
   queryStr = queryStr.split(data+"=")[1];
   queryStr = (queryStr.indexOf("&"))?queryStr.split("&")[0]:queryStr;
  return unescape(queryStr);
 }

  var str  = get('str');
 if(str.indexOf(' ') != -1){
  var strs = str.split(" ");
   for(j=0; j<strs.length; j++){
    var str  = strs[j];
    var len  = str.length;
    var ary  = new Array(len);
    var rand = 0;
   for(i=0; i<len; i++){
    rand = Math.floor(Math.random()*str.length);
     if(ary[rand] != rand){
      document.write (str[rand]);
      ary[rand]    = rand;
    } else {
      len++;
    }
  }
      document.write (" ");
 }
} else {
  var len  = str.length;
  var ary  = new Array(len);
  var rand = 0;
   for(i=0; i<len; i++){
    rand = Math.floor(Math.random()*str.length);
     if(ary[rand] != rand){
      document.write(str[rand]);
      ary[rand] = rand;
    } else {
      len++;
    }
  }
 }
  </script>
 </body>
</html>

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Not too sure

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