diff --git a/example/pages/dashboard/index.js b/example/pages/dashboard/index.js
index cb27bd85..7ea8fec6 100644
--- a/example/pages/dashboard/index.js
+++ b/example/pages/dashboard/index.js
@@ -1,14 +1,8 @@
-import config from '../../config';
+import list from '../../config';
 import Page from '../../common/page';
 
 Page({
   data: {
-    list: config
-  },
-
-  onShareAppMessage() {
-    return {
-      title: 'Vant Weapp 组件库演示'
-    };
+    list
   }
 });
diff --git a/packages/search/README.md b/packages/search/README.md
index ea1c40dd..35260b9e 100644
--- a/packages/search/README.md
+++ b/packages/search/README.md
@@ -39,7 +39,7 @@ Search 支持自定义右侧取消按钮，使用名字为 action 的 slot 即
   use-action-slot
   @search="onSearch"
 >
-  <view slot="action" @click="onSearch">搜索</view>
+  <view slot="action" bind:tap="onSearch">搜索</view>
 </van-search>
 ```
 
diff --git a/packages/utils/index.js b/packages/utils/index.js
new file mode 100644
index 00000000..71ddfc64
--- /dev/null
+++ b/packages/utils/index.js
@@ -0,0 +1,13 @@
+function isDef(value) {
+  return value !== undefined && value !== null;
+}
+
+function isObj(x) {
+  const type = typeof x;
+  return x !== null && (type === 'object' || type === 'function');
+}
+
+export {
+  isObj,
+  isDef
+};