javascript doubt

[mr.cracker]

<script type="text/javascript">
var num=["12","23","5","14"];
function sortNumber(a,b)
{
return a-b;

}

document.write(num.sort(sortNumber());
</script>
//when i call the above function it returns a sorted array,,how it works?????,,
bcoz i don't pass any parameter in my FUNCTION CALL!!!!!

[Gozzy82]

thats because your passing your function as a parameter to the array sort function

and the array sort methods provides a & b

http://www.javascriptkit.com/javatutors/arraysort.shtml (note that you can omit the () from sortNumber example:

num.sort(sortNumber);

)