fix(ListboxVirtualizer): ignore non-element VNodes in slot children (#2578)

zernonia · claude · web-flow · commit 06042b431283 · 2026-04-06T17:47:02.000+08:00
When comment or text nodes are present in the virtualizer slot (e.g. ``), the first Fragment child may not be the actual component VNode. Filter by `typeof type !== 'symbol'` to skip Comment, Text, Static, and Fragment VNodes. Closes #2563 Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
diff --git a/packages/core/src/Listbox/ListboxVirtualizer.vue b/packages/core/src/Listbox/ListboxVirtualizer.vue
@@ -83,7 +83,7 @@ const virtualizedItems = computed(() => virtualizer.value.getVirtualItems().map(
   })[0]
 
   const targetNode = defaultNode.type === Fragment && Array.isArray(defaultNode.children)
-    ? defaultNode.children[0] as VNode
+    ? defaultNode.children.find(child => typeof (child as VNode).type !== 'symbol') as VNode
     : defaultNode
 
   return {
