diff --git a/src/BootstrapBlazor/Components/DateTimePicker/DateTimePicker.razor.js b/src/BootstrapBlazor/Components/DateTimePicker/DateTimePicker.razor.js
index 964cc685568..13d7cfa3603 100644
--- a/src/BootstrapBlazor/Components/DateTimePicker/DateTimePicker.razor.js
+++ b/src/BootstrapBlazor/Components/DateTimePicker/DateTimePicker.razor.js
@@ -13,7 +13,9 @@ export function init(id, invoke, options) {
             return el.classList.contains('disabled');
         },
         hideCallback: () => {
-            invoke?.invokeMethodAsync(options.triggerHideCallback);
+            if (invoke) {
+                invoke.invokeMethodAsync(options.triggerHideCallback);
+            }
         }
     });
     const dateTimePicker = {
diff --git a/src/BootstrapBlazor/Components/Table/Table.razor.js b/src/BootstrapBlazor/Components/Table/Table.razor.js
index 7a2d55c18b3..6be8c44c291 100644
--- a/src/BootstrapBlazor/Components/Table/Table.razor.js
+++ b/src/BootstrapBlazor/Components/Table/Table.razor.js
@@ -425,18 +425,22 @@ const setExcelKeyboardListener = table => {
             }
         }
         else if (keyCode === KeyCodes.UP_ARROW) {
-            cells = tr.previousElementSibling?.children;
-            while (index < cells.length) {
-                if (activeCell(cells, index)) {
-                    break;
+            cells = tr.previousElementSibling && tr.previousElementSibling.children;
+            if (cells) {
+                while (index < cells.length) {
+                    if (activeCell(cells, index)) {
+                        break;
+                    }
                 }
             }
         }
         else if (keyCode === KeyCodes.DOWN_ARROW) {
-            cells = tr.nextElementSibling?.children;
-            while (index < cells.length) {
-                if (activeCell(cells, index)) {
-                    break;
+            cells = tr.nextElementSibling && tr.nextElementSibling.children;
+            if (cells) {
+                while (index < cells.length) {
+                    if (activeCell(cells, index)) {
+                        break;
+                    }
                 }
             }
         }
diff --git a/src/BootstrapBlazor/Components/Typed/Typed.razor.js b/src/BootstrapBlazor/Components/Typed/Typed.razor.js
index 77bdab9eb44..fef645143f6 100644
--- a/src/BootstrapBlazor/Components/Typed/Typed.razor.js
+++ b/src/BootstrapBlazor/Components/Typed/Typed.razor.js
@@ -2,7 +2,7 @@
 import Typed from '../../lib/typedjs/typed.module.js'
 
 const getOptions = (text, invoke, options, callbacks) => {
-    options ??= {};
+    options ||= {};
 
     if (text) {
         options.strings = [text];
diff --git a/src/BootstrapBlazor/wwwroot/modules/fullscreen.js b/src/BootstrapBlazor/wwwroot/modules/fullscreen.js
index 695f772ae85..d7bb0f555a1 100644
--- a/src/BootstrapBlazor/wwwroot/modules/fullscreen.js
+++ b/src/BootstrapBlazor/wwwroot/modules/fullscreen.js
@@ -2,10 +2,11 @@
 
 export async function toggle(options) {
     let el = null;
-    if (options?.id) {
+    options ||= {};
+    if (options.id) {
         el = document.getElementById(options.id);
     }
-    else if (options?.element && isElement(options.element)) {
+    else if (isElement(options.element)) {
         el = options.element;
     }
     else {
diff --git a/src/BootstrapBlazor/wwwroot/modules/utility.js b/src/BootstrapBlazor/wwwroot/modules/utility.js
index f9da376607f..f0fe3e1cf5f 100644
--- a/src/BootstrapBlazor/wwwroot/modules/utility.js
+++ b/src/BootstrapBlazor/wwwroot/modules/utility.js
@@ -809,8 +809,8 @@ const deepMerge = (obj1, obj2, skipNull = true) => {
 }
 
 export function registerBootstrapBlazorModule(name, identifier, callback) {
-    window.BootstrapBlazor ??= {};
-    window.BootstrapBlazor[name] ??= {
+    window.BootstrapBlazor ||= {};
+    window.BootstrapBlazor[name] ||= {
         _init: false,
         _items: [],
         register: function (id, cb) {