ajax async false

            var items = [];
            var apiUrl = "/Servicio.svc/operador";

            $.ajax({
                async: false,
                url: apiUrl,
                type: "GET",
                contentType: "application/json; charset=utf-8",
                dataType: "json",
                success: function (data) {
                    //console.log(data.Data);
                    items = data.Data;

                },
                error: function (e) {
                    alert("Error al guardar operadores:\n");
                }
            });