From d2f6a3c96ff776b6705fdac520b6bf8f4b7802ad Mon Sep 17 00:00:00 2001
From: neverland <chenjiahan@youzan.com>
Date: Sat, 19 Mar 2022 19:42:28 +0800
Subject: [PATCH] fix(ConfigProvider): dark mode not work as default value
 (#10413)

---
 packages/vant/src/config-provider/ConfigProvider.tsx | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/packages/vant/src/config-provider/ConfigProvider.tsx b/packages/vant/src/config-provider/ConfigProvider.tsx
index 53cda1374..81e107ee0 100644
--- a/packages/vant/src/config-provider/ConfigProvider.tsx
+++ b/packages/vant/src/config-provider/ConfigProvider.tsx
@@ -61,7 +61,8 @@ export default defineComponent({
         (newVal, oldVal) => {
           document.body.classList.remove(`van-theme-${oldVal}`);
           document.body.classList.add(`van-theme-${newVal}`);
-        }
+        },
+        { immediate: true }
       );
     }