Edit

Editing: related_courses.min.js

/******/ (() => { // webpackBootstrap
var __webpack_exports__ = {};
/*!***********************************************!*\
  !*** ./resources/js/admin/related_courses.js ***!
  \***********************************************/
(function ($) {
  "use strict";

function handleSelect2() {
    var $select = $('.related-course-select2');
    $select.select2({
      placeholder: $select.data('placeholder'),
      minimumInputLength: 3,
      allowClear: true,
      ajax: {
        url: adminPanelPrefix + '/webinars/search',
        dataType: 'json',
        type: "POST",
        quietMillis: 50,
        data: function data(params) {
          var queryParameters = {
            term: params.term,
            webinar_id: $select.data('webinar-id')
          };
          return queryParameters;
        },
        processResults: function processResults(data) {
          return {
            results: $.map(data, function (item) {
              return {
                text: item.title,
                id: item.id
              };
            })
          };
        }
      }
    });
  }
  function getModalByPath(path) {
    loadingSwl();
    $.get(path, function (result) {
      if (result.code === 200) {
        Swal.fire({
          html: result.html,
          showCancelButton: false,
          showConfirmButton: false,
          customClass: {
            content: 'p-0 text-left'
          },
          width: '32rem',
          onOpen: function onOpen() {
            handleSelect2();
          }
        });
      }
    });
  }
  $('body').on('click', '#addRelatedCourse', function (e) {
    e.preventDefault();
    var path = $(this).attr('data-path');
    getModalByPath(path);
  });
  $('body').on('click', '.js-edit-related-course', function (e) {
    e.preventDefault();
    var path = $(this).attr('data-path');
    getModalByPath(path);
  });
  $('body').on('click', '#saveRelateCourse', function (e) {
    e.preventDefault();
    var $this = $(this);
    var form = $this.closest('.js-related-course-form');
    var data = serializeObjectByTag(form);
    var action = form.attr('data-action');
    $this.addClass('loadingbar primary').prop('disabled', true);
    form.find('input').removeClass('is-invalid');
    form.find('textarea').removeClass('is-invalid');
    $.post(action, data, function (result) {
      if (result && result.code === 200) {
        //window.location.reload();
        Swal.fire({
          icon: 'success',
          html: '<h3 class="font-20 text-center text-dark-blue py-25">' + result.title + '</h3>',
          showConfirmButton: false,
          width: '25rem'
        });
        setTimeout(function () {
          window.location.reload();
        }, 500);
      }
    }).fail(function (err) {
      $this.removeClass('loadingbar primary').prop('disabled', false);
      var errors = err.responseJSON;
      if (errors && errors.errors) {
        Object.keys(errors.errors).forEach(function (key) {
          var error = errors.errors[key];
          var element = form.find('.js-ajax-' + key);
          element.addClass('is-invalid');
          element.parent().find('.invalid-feedback').text(error[0]);
        });
      }
    });
  });
})(jQuery);
/******/ })()
;