duplicate data check from the array

[dasrasmikant]

hello,
I have the below code

<script language="javascript">
	var myArray =new Array("tulu","dudu","tulu","milu")
	for(i=0;i<myArray.length;i++)
		{
			alert(myArray[i])
						
		}
</script>

In the above code the alert message prints "tulu" twice. But I need to avoid duplicacy. Can anybody will help me to fix it.

Thanks in advance

[hsriat]

Try this...[code=javascript]function arrayUnique(arr ay) {
var p, i, j;
for(i = array.length; i;){
for(p = --i; p > 0;){
if(array[i] === array[--p]){
for(j = p; --p && array[i] === array[p];);
i -= array.splice(p + 1, j - p).length;
}
}
}
return true;
}[/code]
Harpreet

[dasrasmikant]

thank you very much hsriat. Its working.
could you explain me the above code..

[hsriat]

[code=javascript]function arrayUnique(arr ay) {
var p, i, j;

/*for each ith index in array
from the last index to the 0th*/
for(i = array.length; i;){

/*for each pth,
moving from the ith to the 0th*/
for(p = --i; p > 0;){

/*if ith is same as pth*/
if(array[i] === array[--p]){

/*going down the index,
until same value exists*/
for(j = p; --p && array[i] === array[p];);

/*remove the matching index/ices
update the value of i according
to the latest length of the array*/
i -= array.splice(p + 1, j - p).length;
}
}
}
return true;
}[/code]

Regards