Question

I’m trying to return a string from of function called ‘tjekdet’, but it won’t return anything but undefined. I just need it to return the string, so I can append the result to $(this).

The reason for me to do it this way, is because the request for test2.php takes around 40 seconds, so I’d rather do them one by one instead. But nevermind that.

Does this have something to do with synchronous calls? Or am I just completely missing something really basic?

    function tjekdet(name) {
    $.get("test2.php", { test: name },
        function(data){
        // alert(data); returns correctly in the alert
        return data;
       });
    }

    jQuery(function($) {
        $('.button').live("click",function() {
            $(".navn-list").each(function() {
                var navn = $(this).text();
                var tester = tjekdet(navn);
                alert(tester); // returns undefined
            });
        });

Answer 1

Does this have something to do with synchronous calls?

Yes. Well, really it has to do with asynchronous calls. Your tjekdet function will return undefined before your AJAX get returns anything.

Put the alert inside the success callback:

$.get("test2.php", { test: name }, function(data) {
    alert(data);
    //Do whatever you need to do here, not in the other function
});

You could use jQuery.ajax instead of jQuery.get and set the async option to false, but that’s rarely a good idea and tends to lock up the browser completely until the data has returned.