how to sort array in descending order?

how to sort an array in descending order?

Thank You, Sir

Hi Sri Bhargavi,

Sort an array (alphabetically and ascending):
<script type="text/javascript">
var fruits = ["Banana", "Orange", "Apple", "Mango"];
document.write(fruits.sort());
</script>
The output of the code above will be:
Apple,Banana,Mango,Orange

Sort numbers (numerically and ascending):
<script type="text/javascript">

function sortNumber(a,b)
{
return a - b;
}

var n = ["10", "5", "40", "25", "100", "1"];
document.write(n.sort(sortNumber));

</script>

The output of the code above will be:
1,5,10,25,40,100

Sort numbers (numerically and descending):
<script type="text/javascript">

function sortNumber(a,b)
{
return b - a;
}

var n = ["10", "5", "40", "25", "100", "1"];
document.write(n.sort(sortNumber));

</script>

The output of the code above will be:
100,40,25,10,5,1

Regards,
Vishwanath