From 4533c104e4673fbf1f2ba1a08e81b8fd58eca0cf Mon Sep 17 00:00:00 2001
From: Hsieh Chin Fan <pham@topo.tw>
Date: Thu, 10 Oct 2024 02:13:23 +0800
Subject: fix: null check for config.id

---
 src/dumbymap.mjs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/dumbymap.mjs b/src/dumbymap.mjs
index 8203818..ac8392c 100644
--- a/src/dumbymap.mjs
+++ b/src/dumbymap.mjs
@@ -316,7 +316,7 @@ export const generateMaps = (container, { layouts = [], delay, renderCallback }
   // Set unique ID for map container
   const mapIdList = []
   const assignMapId = config => {
-    let mapId = config.id.replaceAll('\x20', '_')
+    let mapId = config.id?.replaceAll('\x20', '_')
     if (!mapId) {
       mapId = config.use?.split('/')?.at(-1)
       let counter = 1
-- 
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