diff --git a/src/components/accessSchedule/accessSchedule.js b/src/components/accessSchedule/accessSchedule.js
index 38f0491850..561483cde3 100644
--- a/src/components/accessSchedule/accessSchedule.js
+++ b/src/components/accessSchedule/accessSchedule.js
@@ -51,7 +51,7 @@ import template from './accessSchedule.template.html';
         };
 
         if (parseFloat(updatedSchedule.StartHour) >= parseFloat(updatedSchedule.EndHour)) {
-            return void alert(globalize.translate('ErrorStartHourGreaterThanEnd'));
+            return alert(globalize.translate('ErrorStartHourGreaterThanEnd'));
         }
 
         context.submitted = true;
diff --git a/src/components/groupedcards.js b/src/components/groupedcards.js
index 13158016ac..25dd784305 100644
--- a/src/components/groupedcards.js
+++ b/src/components/groupedcards.js
@@ -23,7 +23,7 @@ import ServerConnections from './ServerConnections';
         if (!actionableParent || actionableParent.classList.contains('cardContent')) {
             apiClient.getJSON(apiClient.getUrl('Users/' + userId + '/Items/Latest', options)).then(function (items) {
                 if (items.length === 1) {
-                    return void appRouter.showItem(items[0]);
+                    return appRouter.showItem(items[0]);
                 }
 
                 const url = 'details?id=' + itemId + '&serverId=' + serverId;
diff --git a/src/components/libraryoptionseditor/libraryoptionseditor.js b/src/components/libraryoptionseditor/libraryoptionseditor.js
index 59478280a9..1f246c8a62 100644
--- a/src/components/libraryoptionseditor/libraryoptionseditor.js
+++ b/src/components/libraryoptionseditor/libraryoptionseditor.js
@@ -323,7 +323,7 @@ import template from './libraryoptionseditor.template.html';
     function onImageFetchersContainerClick(e) {
         const btnImageOptionsForType = dom.parentWithClass(e.target, 'btnImageOptionsForType');
         if (btnImageOptionsForType) {
-            return void showImageOptionsForType(dom.parentWithClass(btnImageOptionsForType, 'imageFetcher').getAttribute('data-type'));
+            return showImageOptionsForType(dom.parentWithClass(btnImageOptionsForType, 'imageFetcher').getAttribute('data-type'));
         }
         onSortableContainerClick.call(this, e);
     }
diff --git a/src/components/tvproviders/schedulesdirect.js b/src/components/tvproviders/schedulesdirect.js
index 1d0e8a49f2..df33008aca 100644
--- a/src/components/tvproviders/schedulesdirect.js
+++ b/src/components/tvproviders/schedulesdirect.js
@@ -122,7 +122,7 @@ export default function (page, providerId, options) {
         const selectedListingsId = $('#selectListing', page).val();
 
         if (!selectedListingsId) {
-            return void Dashboard.alert({
+            return Dashboard.alert({
                 message: globalize.translate('ErrorPleaseSelectLineup')
             });
         }
@@ -168,7 +168,7 @@ export default function (page, providerId, options) {
 
     function refreshListings(value) {
         if (!value) {
-            return void $('#selectListing', page).html('');
+            return $('#selectListing', page).html('');
         }
 
         loading.show();
diff --git a/src/controllers/dashboard/dashboard.js b/src/controllers/dashboard/dashboard.js
index d4110b05ef..8d5e3730e4 100644
--- a/src/controllers/dashboard/dashboard.js
+++ b/src/controllers/dashboard/dashboard.js
@@ -175,7 +175,8 @@ import confirm from '../../components/confirm/confirm';
 
             if (!result.Items.length) {
                 view.querySelector('.activeRecordingsSection').classList.add('hide');
-                return void(itemsContainer.innerHTML = '');
+                itemsContainer.innerHTML = '';
+                return undefined;
             }
 
             view.querySelector('.activeRecordingsSection').classList.remove('hide');
diff --git a/src/controllers/itemDetails/index.js b/src/controllers/itemDetails/index.js
index 762d4ce83e..48a3a57e6e 100644
--- a/src/controllers/itemDetails/index.js
+++ b/src/controllers/itemDetails/index.js
@@ -140,7 +140,7 @@ function renderSeriesTimerSchedule(page, apiClient, seriesTimerId) {
 
 function renderTimerEditor(page, item, apiClient, user) {
     if (item.Type !== 'Recording' || !user.Policy.EnableLiveTvManagement || !item.TimerId || item.Status !== 'InProgress') {
-        return void hideAll(page, 'btnCancelTimer');
+        return hideAll(page, 'btnCancelTimer');
     }
 
     hideAll(page, 'btnCancelTimer', true);
@@ -148,7 +148,7 @@ function renderTimerEditor(page, item, apiClient, user) {
 
 function renderSeriesTimerEditor(page, item, apiClient, user) {
     if (item.Type !== 'SeriesTimer') {
-        return void hideAll(page, 'btnCancelSeriesTimer');
+        return hideAll(page, 'btnCancelSeriesTimer');
     }
 
     if (user.Policy.EnableLiveTvManagement) {
@@ -160,11 +160,11 @@ function renderSeriesTimerEditor(page, item, apiClient, user) {
 
         page.querySelector('.seriesTimerScheduleSection').classList.remove('hide');
         hideAll(page, 'btnCancelSeriesTimer', true);
-        return void renderSeriesTimerSchedule(page, apiClient, item.Id);
+        return renderSeriesTimerSchedule(page, apiClient, item.Id);
     }
 
     page.querySelector('.seriesTimerScheduleSection').classList.add('hide');
-    return void hideAll(page, 'btnCancelSeriesTimer');
+    return hideAll(page, 'btnCancelSeriesTimer');
 }
 
 function renderTrackSelections(page, instance, item, forceReload) {
@@ -806,7 +806,8 @@ function renderNextUp(page, item, user) {
     const section = page.querySelector('.nextUpSection');
 
     if (item.Type != 'Series') {
-        return void section.classList.add('hide');
+        section.classList.add('hide');
+        return undefined;
     }
 
     ServerConnections.getApiClient(item.ServerId).getNextUpEpisodes({
@@ -1113,7 +1114,7 @@ function renderMoreFromSeason(view, item, apiClient) {
 
     if (section) {
         if (item.Type !== 'Episode' || !item.SeasonId || !item.SeriesId) {
-            return void section.classList.add('hide');
+            return section.classList.add('hide');
         }
 
         const userId = apiClient.getCurrentUserId();
@@ -1123,7 +1124,7 @@ function renderMoreFromSeason(view, item, apiClient) {
             Fields: 'ItemCounts,PrimaryImageAspectRatio,BasicSyncInfo,CanDelete,MediaSourceCount'
         }).then(function (result) {
             if (result.Items.length < 2) {
-                return void section.classList.add('hide');
+                return section.classList.add('hide');
             }
 
             section.classList.remove('hide');
@@ -1158,10 +1159,10 @@ function renderMoreFromArtist(view, item, apiClient) {
     if (section) {
         if (item.Type === 'MusicArtist') {
             if (!apiClient.isMinServerVersion('3.4.1.19')) {
-                return void section.classList.add('hide');
+                return section.classList.add('hide');
             }
         } else if (item.Type !== 'MusicAlbum' || !item.AlbumArtists || !item.AlbumArtists.length) {
-            return void section.classList.add('hide');
+            return section.classList.add('hide');
         }
 
         const query = {
@@ -1180,7 +1181,7 @@ function renderMoreFromArtist(view, item, apiClient) {
 
         apiClient.getItems(apiClient.getCurrentUserId(), query).then(function (result) {
             if (!result.Items.length) {
-                return void section.classList.add('hide');
+                return section.classList.add('hide');
             }
 
             section.classList.remove('hide');
@@ -1214,7 +1215,7 @@ function renderSimilarItems(page, item, context) {
 
     if (similarCollapsible) {
         if (item.Type != 'Movie' && item.Type != 'Trailer' && item.Type != 'Series' && item.Type != 'Program' && item.Type != 'Recording' && item.Type != 'MusicAlbum' && item.Type != 'MusicArtist' && item.Type != 'Playlist') {
-            return void similarCollapsible.classList.add('hide');
+            return similarCollapsible.classList.add('hide');
         }
 
         similarCollapsible.classList.remove('hide');
@@ -1231,7 +1232,7 @@ function renderSimilarItems(page, item, context) {
 
         apiClient.getSimilarItems(item.Id, options).then(function (result) {
             if (!result.Items.length) {
-                return void similarCollapsible.classList.add('hide');
+                return similarCollapsible.classList.add('hide');
             }
 
             similarCollapsible.classList.remove('hide');
@@ -1818,7 +1819,8 @@ function renderCast(page, item) {
     });
 
     if (!people.length) {
-        return void page.querySelector('#castCollapsible').classList.add('hide');
+        page.querySelector('#castCollapsible').classList.add('hide');
+        return undefined;
     }
 
     page.querySelector('#castCollapsible').classList.remove('hide');
@@ -1913,7 +1915,7 @@ export default function (view, params) {
 
         if (item.Type === 'Program') {
             const apiClient = ServerConnections.getApiClient(item.ServerId);
-            return void apiClient.getLiveTvChannel(item.ChannelId, apiClient.getCurrentUserId()).then(function (channel) {
+            return apiClient.getLiveTvChannel(item.ChannelId, apiClient.getCurrentUserId()).then(function (channel) {
                 playbackManager.play({
                     items: [channel]
                 });
diff --git a/src/controllers/list.js b/src/controllers/list.js
index 105817605b..f465d55b57 100644
--- a/src/controllers/list.js
+++ b/src/controllers/list.js
@@ -721,7 +721,7 @@ class ItemsView {
                 return globalize.translate('Videos');
             }
 
-            return void 0;
+            return undefined;
         }
 
         function play() {
diff --git a/src/controllers/playback/video/index.js b/src/controllers/playback/video/index.js
index a27e119768..134d30f413 100644
--- a/src/controllers/playback/video/index.js
+++ b/src/controllers/playback/video/index.js
@@ -54,14 +54,14 @@ import { appRouter } from '../../../components/appRouter';
                     recordingButtonManager = null;
                 }
 
-                return void view.querySelector('.btnRecord').classList.add('hide');
+                return view.querySelector('.btnRecord').classList.add('hide');
             }
 
             ServerConnections.getApiClient(item.ServerId).getCurrentUser().then(function (user) {
                 if (user.Policy.EnableLiveTvManagement) {
                     import('../../../components/recordingcreator/recordingbutton').then(({default: RecordingButton}) => {
                         if (recordingButtonManager) {
-                            return void recordingButtonManager.refreshItem(item);
+                            return recordingButtonManager.refreshItem(item);
                         }
 
                         recordingButtonManager = new RecordingButton({
@@ -1449,7 +1449,7 @@ import { appRouter } from '../../../components/appRouter';
         /* eslint-disable-next-line compat/compat */
         dom.addEventListener(view, window.PointerEvent ? 'pointerdown' : 'click', function (e) {
             if (dom.parentWithClass(e.target, ['videoOsdBottom', 'upNextContainer'])) {
-                return void showOsd();
+                return showOsd();
             }
 
             const pointerType = e.pointerType || (layoutManager.mobile ? 'touch' : 'mouse');
diff --git a/src/controllers/session/forgotPassword/index.js b/src/controllers/session/forgotPassword/index.js
index 0b165b65f5..9f02a62c1a 100644
--- a/src/controllers/session/forgotPassword/index.js
+++ b/src/controllers/session/forgotPassword/index.js
@@ -5,14 +5,14 @@ import Dashboard from '../../../scripts/clientUtils';
 
     function processForgotPasswordResult(result) {
         if (result.Action == 'ContactAdmin') {
-            return void Dashboard.alert({
+            return Dashboard.alert({
                 message: globalize.translate('MessageContactAdminToResetPassword'),
                 title: globalize.translate('ButtonForgotPassword')
             });
         }
 
         if (result.Action == 'InNetworkRequired') {
-            return void Dashboard.alert({
+            return Dashboard.alert({
                 message: globalize.translate('MessageForgotPasswordInNetworkRequired'),
                 title: globalize.translate('ButtonForgotPassword')
             });
@@ -26,7 +26,7 @@ import Dashboard from '../../../scripts/clientUtils';
             msg += '<br/>';
             msg += result.PinFile;
             msg += '<br/>';
-            return void Dashboard.alert({
+            return Dashboard.alert({
                 message: msg,
                 title: globalize.translate('ButtonForgotPassword'),
                 callback: function () {
diff --git a/src/controllers/session/resetPassword/index.js b/src/controllers/session/resetPassword/index.js
index 9697e386a7..252798fd7e 100644
--- a/src/controllers/session/resetPassword/index.js
+++ b/src/controllers/session/resetPassword/index.js
@@ -9,7 +9,7 @@ import Dashboard from '../../../scripts/clientUtils';
             msg += '<br/>';
             msg += '<br/>';
             msg += result.UsersReset.join('<br/>');
-            return void Dashboard.alert({
+            return Dashboard.alert({
                 message: msg,
                 title: globalize.translate('HeaderPasswordReset'),
                 callback: function () {
diff --git a/src/scripts/libraryMenu.js b/src/scripts/libraryMenu.js
index f4051ea83c..c3b2400ba3 100644
--- a/src/scripts/libraryMenu.js
+++ b/src/scripts/libraryMenu.js
@@ -645,7 +645,7 @@ import Headroom from 'headroom.js';
         if (!user) {
             showBySelector('.libraryMenuDownloads', false);
             showBySelector('.lnkSyncToOtherDevices', false);
-            return void showBySelector('.userMenuOptions', false);
+            return showBySelector('.userMenuOptions', false);
         }
 
         if (user.Policy.EnableContentDownloading) {
@@ -957,7 +957,7 @@ import Headroom from 'headroom.js';
 
     function setTitle (title) {
         if (title == null) {
-            return void LibraryMenu.setDefaultTitle();
+            return LibraryMenu.setDefaultTitle();
         }
 
         if (title === '-') {