Error handling in getJSON calls

Question

How can you handle errors in a getJSON call? Im trying to reference a cross-domain script service using jsonp, how do you register an error method?

Answer 1

Why not

getJSON('get.php',{cmd:"1", typeID:$('#typesSelect')},function(data) {
    // ...
});

function getJSON(url,params,callback) {
    return $.getJSON(url,params,callback)
        .fail(function(jqXMLHttpRequest,textStatus,errorThrown) {
            console.dir(jqXMLHttpRequest);
            alert('Ajax data request failed: "'+textStatus+':'+errorThrown+'" - see javascript console for details.');
        })
}

??

For details on the used .fail() method (jQuery 1.5+), see http://api.jquery.com/jQuery.ajax/#jqXHR

Since the jqXHR is returned by the function, a chaining like

$.when(getJSON(...)).then(function() { ... });

is possible.