我使用 bootstrap 4 形式。任何人都知道如何正確添加密碼與驗證不匹配。謝謝  // Check if passwords match    $('#pwdId, #confirmPassword').on('keyup', function () {        if ($('#newPassword').val() != '' && $('#confirmPassword').val() != '' && $('#confirmPassword').val() == $('#confirmPassword').val()) {               }    });// Example starter JavaScript for disabling form submissions if there are invalid fields    (function() {        'use strict';        window.addEventListener('load', function() {            // Fetch all the forms we want to apply custom Bootstrap validation styles to            var forms = document.getElementsByClassName('needs-validation');            // Loop over them and prevent submission            var validation = Array.prototype.filter.call(forms, function(form) {                form.addEventListener('submit', function(event) {                    if (form.checkValidity() === false) {                        event.preventDefault();                        event.stopPropagation();                    }                    form.classList.add('was-validated');                }, false);            });        }, false);    })();