如何隐藏ajax表单？[关闭]

我使用这个插件https://jqueryvalidation.org/

提交后如何隐藏表单，此 hide() 失败。表格有好几种，所以我需要隐藏填写的那个

$(document).ready(function () {

        $(".vacancies-form").validate({
            ignore: ":hidden",
            rules: {
                name: {
                    required: true,
                    minlength: 2
                },
                phone: {
                    required: true,
                    minlength: 6
                }
            },
            submitHandler: function (form) {
                $.ajax({
                    type: "POST",
                    url: "sender.php",
                    data: $(form).serialize(),
                    success: function () {
                       $(this).hide();
                    }
                });
                return false;
            }
        });

    });