From 03497a3fb91bcdf29ded61d8e12ce604894594e0 Mon Sep 17 00:00:00 2001
From: kimpure <gimleni593@gmail.com>
Date: Thu, 21 May 2026 15:15:53 +0000
Subject: [PATCH] fix undefined number

---
 packages/utils/saferKorean.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/utils/saferKorean.ts b/packages/utils/saferKorean.ts
index 02cb14b..903fbc1 100644
--- a/packages/utils/saferKorean.ts
+++ b/packages/utils/saferKorean.ts
@@ -205,7 +205,7 @@ export function saferKorean(input: string): string {
 
         // Process number, unit
         .replace(/(\+\d+[\s\-]+)?([\d\-]+)/g, (_, prefix: string, phone: string) => {
-            const all = prefix + phone;
+            const all = (prefix ?? "") + phone;
             if (!phone.includes("-")) return all;
             return PhoneNumberKorean.convert(all);
         })