How to count objects

Oh no I read it wrong 

function countObjectsOnPage(page) {
    return page.allPageItems.length;
}

function countObjectsOnSpecifiedPages(pageNumbers) {
    var totalObjects = 0;
    var doc = app.activeDocument;

    var pageList = pageNumbers.split(',');
    for (var i = 0; i < pageList.length; i++) {
        var range = pageList[i].replace(/^\s+|\s+$/g, '').split('-');  // Trim whitespace

        if (range.length === 1) {
            var pageNumber = parseInt(range[0]);
            var page = doc.pages.item(pageNumber - 1);

            if (page) {
                totalObjects += countObjectsOnPage(page);
            } else {
                $.writeln("Invalid page number: " + pageNumber);
            }
        } else if (range.length === 2) {
            // Page range
            var startPage = parseInt(range[0]);
            var endPage = parseInt(range[1]);

            for (var j = startPage; j <= endPage; j++) {
                var page = doc.pages.item(j - 1);

                if (page) {
                    totalObjects += countObjectsOnPage(page);
                } else {
                    $.writeln("Invalid page number in range: " + j);
                }
            }
        }
    }

    return totalObjects;
}

function main() {
    var doc = app.activeDocument;

    var pageNumbers = prompt("Enter page numbers (e.g., 1-3, 5, 7):", "1-3, 5, 7");

    if (pageNumbers) {
        alert("Total number of objects on specified pages: " + countObjectsOnSpecifiedPages(pageNumbers));
    } else {
        alert("Invalid input");
    }
}

main();