diff --git a/src/webui/www/eslint.config.mjs b/src/webui/www/eslint.config.mjs
index 5d78ea107..102d04aea 100644
--- a/src/webui/www/eslint.config.mjs
+++ b/src/webui/www/eslint.config.mjs
@@ -36,6 +36,7 @@ export default [
             "curly": ["error", "multi-or-nest", "consistent"],
             "eqeqeq": "error",
             "guard-for-in": "error",
+            "no-implicit-coercion": "error",
             "no-undef": "off",
             "no-unused-vars": "off",
             "no-var": "error",
@@ -73,7 +74,10 @@ export default [
             "Unicorn/no-array-for-each": "error",
             "Unicorn/no-for-loop": "error",
             "Unicorn/no-zero-fractions": "error",
+            "Unicorn/prefer-classlist-toggle": "error",
+            "Unicorn/prefer-native-coercion-functions": "error",
             "Unicorn/prefer-number-properties": "error",
+            "Unicorn/prefer-single-call": "error",
             "Unicorn/switch-case-braces": ["error", "avoid"]
         }
     }
diff --git a/src/webui/www/private/scripts/dynamicTable.js b/src/webui/www/private/scripts/dynamicTable.js
index b8e895ffb..0f69e4b1d 100644
--- a/src/webui/www/private/scripts/dynamicTable.js
+++ b/src/webui/www/private/scripts/dynamicTable.js
@@ -710,10 +710,8 @@ window.qBittorrent.DynamicTable ??= (() => {
                 colElem.classList.toggle("reverse", isReverse);
             }
             const oldColElem = getCol(this.dynamicTableFixedHeaderDivId, oldColumn);
-            if (oldColElem !== null) {
-                oldColElem.classList.remove("sorted");
-                oldColElem.classList.remove("reverse");
-            }
+            if (oldColElem !== null)
+                oldColElem.classList.remove("sorted", "reverse");
         }
 
         getSelectedRowId() {
diff --git a/src/webui/www/private/scripts/search.js b/src/webui/www/private/scripts/search.js
index 90c099467..b0f30cdfa 100644
--- a/src/webui/www/private/scripts/search.js
+++ b/src/webui/www/private/scripts/search.js
@@ -730,9 +730,7 @@ window.qBittorrent.Search ??= (() => {
                     for (const plugin of responseJSON)
                         searchPlugins.push(plugin);
 
-                    const pluginOptions = [];
-                    pluginOptions.push(createOption("QBT_TR(Only enabled)QBT_TR[CONTEXT=SearchEngineWidget]", "enabled"));
-                    pluginOptions.push(createOption("QBT_TR(All plugins)QBT_TR[CONTEXT=SearchEngineWidget]", "all"));
+                    const pluginOptions = [createOption("QBT_TR(Only enabled)QBT_TR[CONTEXT=SearchEngineWidget]", "enabled"), createOption("QBT_TR(All plugins)QBT_TR[CONTEXT=SearchEngineWidget]", "all")];
 
                     const searchPluginsEmpty = (searchPlugins.length === 0);
                     if (!searchPluginsEmpty) {
diff --git a/src/webui/www/private/views/aboutToolbar.html b/src/webui/www/private/views/aboutToolbar.html
index 23a10cec1..143a1d175 100644
--- a/src/webui/www/private/views/aboutToolbar.html
+++ b/src/webui/www/private/views/aboutToolbar.html
@@ -17,12 +17,8 @@
         MochaUI.initializeTabs("aboutTabs");
 
         const showContent = (element) => {
-            for (const content of document.querySelectorAll(".aboutTabContent")) {
-                if (content === element)
-                    content.classList.remove("invisible");
-                else
-                    content.classList.add("invisible");
-            }
+            for (const content of document.querySelectorAll(".aboutTabContent"))
+                content.classList.toggle("invisible", (content !== element));
         };
 
         document.getElementById("aboutAboutLink").addEventListener("click", (event) => {
diff --git a/src/webui/www/private/views/preferencesToolbar.html b/src/webui/www/private/views/preferencesToolbar.html
index 38dfb9dce..da9dbd332 100644
--- a/src/webui/www/private/views/preferencesToolbar.html
+++ b/src/webui/www/private/views/preferencesToolbar.html
@@ -36,12 +36,8 @@
         MochaUI.initializeTabs("preferencesTabs");
 
         const showTab = (element) => {
-            for (const tab of document.querySelectorAll(".PrefTab")) {
-                if (tab === element)
-                    tab.classList.remove("invisible");
-                else
-                    tab.classList.add("invisible");
-            }
+            for (const tab of document.querySelectorAll(".PrefTab"))
+                tab.classList.toggle("invisible", (tab !== element));
         };
 
         document.getElementById("PrefBehaviorLink").addEventListener("click", (e) => {
diff --git a/src/webui/www/private/views/rss.html b/src/webui/www/private/views/rss.html
index 26e27f77d..80723924c 100644
--- a/src/webui/www/private/views/rss.html
+++ b/src/webui/www/private/views/rss.html
@@ -620,8 +620,8 @@
 
                                 if (articlesDiffer) {
                                     // update unread count
-                                    const oldUnread = feedData[r.uid].map((art) => !art.isRead).filter((v) => v).length;
-                                    const newUnread = r.articles.map((art) => !art.isRead).filter((v) => v).length;
+                                    const oldUnread = feedData[r.uid].map((art) => !art.isRead).filter(Boolean).length;
+                                    const newUnread = r.articles.map((art) => !art.isRead).filter(Boolean).length;
                                     const unreadDifference = newUnread - oldUnread;
 
                                     // find all parents (and self) and add unread difference
@@ -733,7 +733,7 @@
                                 });
 
                                 // calculate number of unread
-                                const numberOfUnread = dataEntry.articles.map((art) => !art.isRead).filter((v) => v).length;
+                                const numberOfUnread = dataEntry.articles.map((art) => !art.isRead).filter(Boolean).length;
                                 // find all items that contain this rss feed and add unread count
                                 for (const row of rssFeedTable.getRowValues()) {
                                     if (dataEntry.fullName.slice(0, row.full_data.dataPath.length) === row.full_data.dataPath)