Remove pages in an array

[davidn5918184]

I have a document that could be 20-100 pages long and I want to delete the pages that I have in an array. When I run this I get crazy results. It deletes pages 8, 10, 12, 14, 19. I don't get that result. Any help would be appriciated.

var myDoc = app.activeDocument;
delArray = [7,8,9,10,14,17];

for (i = 0; i < delArray.length; i++) {
	myDoc.pages.item(delArray[i]).remove(); //Also throws error 'object is invalid'
}

[Sunil Yadav]

First sort the array & delete those pages in reverse order...

delArray.sort();

for(var i = delArray.length-1; i >= 0; i--){

    if(myDoc.pages.item(delArray[i]).isValid){

        myDoc.pages.item(delArray [i]).remove();

        }

    }

Sunil

[davidn5918184]

So close, it deletes, 8, 9, 10, 14, 18. It gets the center of the array but not the first and last.

[rob day · Accepted solution]

You could try a reverse loop thru the pages, check if the page in the array and then delete , something like this:

var p = app.activeDocument.pages;
delArray = [7,8,9,10,14,17];


for(var i =  p.length-1; i >= 0; i--){
    if (checkItem(delArray, i+1)) {
       p[i].remove();
    } 
}


/**
* Checks if an item is in an array
*  the array to check 
*  the item to look for 
*  true if the item is in the array 
* 
*/
function checkItem(a, obj) {
    for (var i = 0; i < a.length; i++) {
        if (a[i] === obj) {
            return true;
        }
    }
    return false;
}

[davidn5918184]

That did it, thanks so much!