A perfect Ajax Call with function

Perfect Ajax Call.js

        <script>
                function showToaster(type) {
                    setTimeout(function() {
                        toastr.options = {
                            closeButton: true,
                            progressBar: false,
                            positionClass: "toast-bottom-right",
                            showMethod: 'slideDown',
                            timeOut: 3000
                        };
                        if (type == "success"){
                            toastr.success('', "Role Updated");
                        } else {
                            toastr.error('', "Something went wrong. Please, try again");
                        }

                    }, 60);
                }

                $(document).ready(function() {
                    var userId = "{!! $user->id !!}";
                    var requestUri = "{!! route('user.roleUpdate') !!}";
                    $('#roleChange').on("click", '.clickableSwitch', function (e) {
                        var roleId = $(this).attr('roleId');
                        roleUpdate(userId, roleId);
                    });

                    function roleUpdate(userId, roleId){
                    /*    console.log(userId, roleId); */
                        $.ajax({
                            // Switch off caching
                            cache: false,
                            //Set the type of request
                            type: "GET",
                            // Set the timeout
                            timeout: 5000,
                            // set url to which the request is sent
                            url: requestUri,
                            // define data type
                            dataType: "json",
                            // your data
                            data: {userId: userId, roleId: roleId},
                            // if the request is success get the response
                            success: function (response) {
                                showToaster("success");
                            },
                            // if the request is error get the response
                            error: function(response) {
                                showToaster("error");
                            }
                        });
                    }
                });
            </script>