correcting with es6.js

build/media_source/com_modules/js/admin-modules-modal.es6.js

@@ -0,0 +1,40 @@
+/**
+  * @copyright  Copyright (C) 2005 - 2019 Open Source Matters, Inc. All rights reserved.
+  * @license    GNU General Public License version 2 or later; see LICENSE.txt
+  */
+
+document.addEventListener('DOMContentLoaded', () => {
+    "use strict";
+
+    /** Get the elements **/
+    const modulesLinks = [].slice.call(document.querySelectorAll('.js-module-insert'));
+    const positionsLinks = [].slice.call(document.querySelectorAll('.js-position-insert'));
+
+    /** Assign listener for click event (for single module id insertion) **/
+    modulesLinks.forEach((element) => {
+        element.addEventListener('click', (event) => {
+            event.preventDefault();
+            const modid = event.target.getAttribute('data-module');
+            const editor = event.target.getAttribute('data-editor');
+
+            /** Use the API **/
+            if (window.parent.Joomla && window.parent.Joomla.editors && window.parent.Joomla.editors.instances && window.parent.Joomla.editors.instances.hasOwnProperty(editor)) {
+                window.parent.Joomla.editors.instances[editor].replaceSelection("{loadmoduleid " + modid + "}")
+            }
+        });
+    });
+
+    /** Assign listener for click event (for position insertion) **/
+    positionsLinks.forEach((element) => {
+        element.addEventListener('click', function (event) {
+            event.preventDefault();
+            const position = event.target.getAttribute('data-position');
+            const editor = event.target.getAttribute('data-editor');
+
+            /** Use the API **/
+            if (window.Joomla && window.Joomla.editors && Joomla.editors.instances && Joomla.editors.instances.hasOwnProperty(editor)) {
+                Joomla.editors.instances[editor].replaceSelection("{loadposition " + position + "}")
+            }
+        });
+    });
+});