Member Avatar for k2k

say i have:
document.writeln("0")
document.writeln("1")
document.writeln("2")
document.writeln("3")
document.writeln("4")

how i do generate them in different order each time but all of them must display? ... please help

ex: .... 1
........ 3
...........0
...........4
........... 2


then another output would be:
........3
.........2
.........4.
.........1
............0 ... all random but must be all five line displaying..

thanks if anyone can help this out real quick

  • 3 Contributors
  • 2 Replies
  • 131 Views
  • 10 Hours Discussion Span
  • Latest Post Latest Post by essential

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Member Avatar for Fungus1487

You will need to randomly generate numbers and check that they have not already been displayed. The below does this by continuosly looping until it has found the total range of values. Each loop generates a new number then checks if it exists in the array. If not the new value is appended and output to the screen.

var arrayContains = function(array, value) {
    for(var i in array) {
        if(array[i] == value) { return true; }
    }
    return false;
};

var found = [];
var range = 4; // 0 - 4
while(found.length < range) {
    var num = Math.floor(Math.random() * (range + 1));
    // If it is new then add it and print it
    if(!arrayContains(found, num)) {
        found[found.length] = num;
        document.writeln(num);
    }
}
Member Avatar for essential

You could also try this simple variation of using arrays instead of integer values.

All codes is as follows:

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
   "http://www.w3.org/TR/html4/loose.dtd">
<html id="html40L" lang="en">
<head>
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta http-equiv="Content-Style-Type" content="text/css">
<meta http-equiv="Content-Script-Type" content="text/javascript">
<meta http-equiv="Window-target" content="_top">
<title>Free Live Help!</title>
<style type="text/css">
<!--

-->
</style>
<script type="text/javascript">
<!--

var randomNumbers = function( countUpTo ) {
var sCount = 1;
var count = [ ];
   while( countUpTo >= sCount ) {
   count.push( countUpTo-- );
   count.sort( function() { return .5- Math.random(); } ); 
   }  for ( var x = 0; x < count.length; x++ ) {
   document.writeln( String( count[ x ] ).fontcolor("green") + "<br>" );
   }
}

// -->
</script>
</head>
<body>
<div id="output">
<script type="text/javascript">
<!--
randomNumbers( 10 );
// -->
</script>
</div>
</body>
</html>

hope it help...
essential

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