From d27cbeb1bd9e671a3d7fbbf76d4becb5baef0445 Mon Sep 17 00:00:00 2001
From: katherinehhh <katherine_15995@163.com>
Date: Mon, 13 Mar 2023 19:03:53 +0800
Subject: [PATCH] feat: suport add child

---
 .../core/client/src/schema-component/antd/table-v2/utils.ts     | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/core/client/src/schema-component/antd/table-v2/utils.ts b/packages/core/client/src/schema-component/antd/table-v2/utils.ts
index 09e5445af0..d0153bf4ad 100644
--- a/packages/core/client/src/schema-component/antd/table-v2/utils.ts
+++ b/packages/core/client/src/schema-component/antd/table-v2/utils.ts
@@ -10,7 +10,7 @@ export const isColumnComponent = (schema: Schema) => {
 
 export function extractIndex(str) {
   const numbers = [];
-  str.split('.').forEach(function (element) {
+  str?.split('.').forEach(function (element) {
     if (!isNaN(element)) {
       numbers.push(String(Number(element) + 1));
     }