jQuery .get error response function?

Question

Thanks to StackOverflow, I managed to get the following code working perfectly, but I have a follow up question.

$.get('http://example.com/page/2/', function(data){ 
  $(data).find('#reviews .card').appendTo('#reviews');
});

This code above enabled my site to fetch a second page of articles with a Load More button in WordPress. However when the site runs out of pages/results, I'm running into a small issue. The load more button remains in place. It will keep trying to fetch data even if no pages are remaining.

How can I tweak this command so that I can show a visual response if the .get request fails or is a (404) not found page for instance?

If someone could help me out with a simple example of even an alert("woops!"); that would be awesome!

Thanks!

Answer 1

$.get does not give you the opportunity to set an error handler. You will need to use the low-level $.ajax function instead:

$.ajax({
    url: 'http://example.com/page/2/',
    type: 'GET',
    success: function(data){ 
        $(data).find('#reviews .card').appendTo('#reviews');
    },
    error: function(data) {
        alert('woops!'); //or whatever
    }
});

---

Edit March '10

Note that with the new jqXHR object in jQuery 1.5, you can set an error handler after calling $.get:

$.get('http://example.com/page/2/', function(data){ 
    $(data).find('#reviews .card').appendTo('#reviews');
}).fail(function() {
    alert('woops'); // or whatever
});