From 86207a7d20e5ddedc9f45fd1c6ace65aa788616d Mon Sep 17 00:00:00 2001
From: moneko97 <poi.nyaa@qq.com>
Date: Sun, 26 Oct 2025 02:13:23 +0800
Subject: [PATCH] fix: Attempted to assign to readonly property in
 createElementType

---
 package-lock.json | 4 ++--
 package.json      | 2 +-
 src/element.ts    | 4 +++-
 3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 6bae6d4..a77b5a7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "component-register",
-  "version": "0.8.7",
+  "version": "0.8.9",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "component-register",
-      "version": "0.8.7",
+      "version": "0.8.9",
       "license": "MIT",
       "devDependencies": {
         "@babel/core": "7.24.7",
diff --git a/package.json b/package.json
index 98c05aa..f38d138 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "component-register",
   "description": "Basic Wrapper around Web Components",
-  "version": "0.8.8",
+  "version": "0.8.9",
   "author": "Ryan Carniato",
   "license": "MIT",
   "readmeFilename": "README.md",
diff --git a/src/element.ts b/src/element.ts
index 4da6ae8..f0654fd 100644
--- a/src/element.ts
+++ b/src/element.ts
@@ -49,7 +49,9 @@ export function createElementType<T>(
       this.__updating = {};
       this.props = {};
       for (let propKey of propKeys) {
-        this[propKey as never] = undefined
+        // fix: Attempted to assign to readonly property.
+        if (propKey in this) continue;
+        this[propKey as never] = undefined;
       }
     }