Question

I am using jQuery Ajax API to handle my CRUD operations. I encounter the situation that I want to call the server using AJAX but do not want to handle the result with a callback function. Is there any way to handle the result without using callback functions.

There is sample code describes what I want.

        if (ConfirmUserName(userName)) {
            return "User Already Exist";
        }
        else {
            return true;
        } 

The function used validates userName. Please note SendRequest method sends synchronous AJAX call to server.

function ConfirmUserName(userName) {
            var validate = false;
            SendRequest("/ClientUser/ValidateUserName", { ClientUserName: userName }, null, function (returnedData) {
                validate = returnedData;

            }, function () { }, null);
        return validate;
        }

Answer 1

If you are not expecting any output results from the Ajax request, you can simply ignore the success attribute. However, this will have its own implications.