diff --git a/src/layout/components/Sidebar/SidebarItem.vue b/src/layout/components/Sidebar/SidebarItem.vue
index 3720062..5e82ea3 100644
--- a/src/layout/components/Sidebar/SidebarItem.vue
+++ b/src/layout/components/Sidebar/SidebarItem.vue
@@ -59,11 +59,9 @@ const hasOneShowingChild = (parent: RouteRecordRaw, children?: RouteRecordRaw[])
   const showingChildren = children.filter((item) => {
     if (item.hidden) {
       return false;
-    } else {
-      // Temp set(will be used if only has one showing child)
-      onlyOneChild.value = item;
-      return true;
     }
+    onlyOneChild.value = item;
+    return true;
   });
 
   // When there is only one child router, the child router is displayed by default
diff --git a/src/plugins/cache.ts b/src/plugins/cache.ts
index cf43680..e5ceead 100644
--- a/src/plugins/cache.ts
+++ b/src/plugins/cache.ts
@@ -26,6 +26,7 @@ const sessionCache = {
     if (value != null) {
       return JSON.parse(value);
     }
+    return null;
   },
   remove(key: string) {
     sessionStorage.removeItem(key);
@@ -59,6 +60,7 @@ const localCache = {
     if (value != null) {
       return JSON.parse(value);
     }
+    return null;
   },
   remove(key: string) {
     localStorage.removeItem(key);
diff --git a/src/router/index.ts b/src/router/index.ts
index 6c12791..c5b472f 100644
--- a/src/router/index.ts
+++ b/src/router/index.ts
@@ -189,9 +189,8 @@ const router = createRouter({
   scrollBehavior(to, from, savedPosition) {
     if (savedPosition) {
       return savedPosition;
-    } else {
-      return { top: 0 };
     }
+    return { top: 0 };
   }
 });