jquery - creating a generic ajax function [duplicate]

Answer 1

This is what's comes to my mind with "generic" - but it's still asynchronous:

function CallMethod(url, parameters, successCallback) {
                //show loading... image

                $.ajax({
                    type: 'POST',
                    url: url,
                    data: JSON.stringify(parameters),
                    contentType: 'application/json;',
                    dataType: 'json',
                    success: successCallback,
                    error: function(xhr, textStatus, errorThrown) {
                        console.log('error');
                    }
                });
            }

CallMethod(url, pars, onSuccess);

function onSuccess(param) {
    //remove loading... image
    //do something with the response
}