From fdf4a5d10ab927fa6c484355ea17b76b87c834d4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=AB=98=E8=89=B3=E5=85=B5?= <yanbing.gao@aliyun.com>
Date: Mon, 28 Sep 2026 10:38:58 +0800
Subject: [PATCH] fix: preserve zero-valued children

---
 package.json                 |  2 +-
 src/MutateObserver.tsx       |  3 ++-
 tests/renderability.test.tsx | 14 ++++++++++++++
 3 files changed, 17 insertions(+), 2 deletions(-)
 create mode 100644 tests/renderability.test.tsx

diff --git a/package.json b/package.json
index 99e94b7..896d565 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
     "watch": "father dev"
   },
   "dependencies": {
-    "@rc-component/util": "^1.11.1"
+    "@rc-component/util": "^1.13.0"
   },
   "devDependencies": {
     "@eslint/js": "^10.0.1",
diff --git a/src/MutateObserver.tsx b/src/MutateObserver.tsx
index eef3664..a568e99 100644
--- a/src/MutateObserver.tsx
+++ b/src/MutateObserver.tsx
@@ -1,5 +1,6 @@
 import {
   getDOM,
+  isReactRenderable,
   getNodeRef,
   supportNodeRef,
   useComposeRef,
@@ -34,7 +35,7 @@ const MutateObserver: React.FC<MutationObserverProps> = props => {
   }, [canRef]);
 
   // =========================== Render ===========================
-  if (!children) {
+  if (!isReactRenderable(children)) {
     if (process.env.NODE_ENV !== 'production') {
       console.error('MutationObserver need children props');
     }
diff --git a/tests/renderability.test.tsx b/tests/renderability.test.tsx
new file mode 100644
index 0000000..ef20bac
--- /dev/null
+++ b/tests/renderability.test.tsx
@@ -0,0 +1,14 @@
+import React from 'react';
+import { render } from '@testing-library/react';
+import MutateObserver from '../src';
+
+it('preserves a zero child without reporting a missing child', () => {
+  const error = jest.spyOn(console, 'error').mockImplementation(() => {});
+  try {
+    const { container } = render(<MutateObserver>{0}</MutateObserver>);
+    expect(container.textContent).toBe('0');
+    expect(error).not.toHaveBeenCalled();
+  } finally {
+    error.mockRestore();
+  }
+});