Question

This code checks for dead links. Since 3rd party Ajax requests are not allowed by browsers, I created a php file to check for dead links and my native jQuery code is:

function UrlExists(urlx) {
    $.ajax({
        url: "/chk.php?url=" + encodeURIComponent(urlx),
        cache: false,
        method: 'get',
        success: function (data) {
            if (data.indexOf("T") != -1) {
                return true;
            }
            else {
                return false;
            }
        }
    });
}
$(document).ready(function () {
    $("table[id^='row']").each(function () {
        if (!UrlExists($(this).find("a[href$='mp3']").attr('href'))) {
            $(this).remove();
        }
    })
});

While, I have made sure that

1) chk.php is working properly and return T on some URLs and on others not.

2) Old JS code is not being used

Still the problem is that above program removes all links. I also tried setting async to false but it does’nt help.

Answer 1

The problem is that you return within you success-callback, that return will not reach the outer function, thus UrlExist() does not return anything as it is written today.

You will either have to do the remove from within your success-callback, or call another function that remove the link, but that function would still have to be called from within your success-callback.