Output AJAX response into UL on page

outputJSONlist.js

//jQuery.ajax - Success, error and complete are deprecated in jQuery 1.8
function toListItem(element) {
    return '<li>' + element + '</li>';
}

var first = $.ajax({
    type: "GET",
    url: "/items",
    accepts: "text/json"
});

first.done(function(data) {
    var list = $('<ul>');
    $(data).each(function() {
        list.append(toListItem(this.name));
        if(this.extras !== null) {
            list.append(toListItem(this.extras.join(", ")));
        }
    });
    $('body').html(list);
});