From 85f218d09625d3939179fb0e5aa694de7cf76adf Mon Sep 17 00:00:00 2001
From: Jovi De Croock <decroockjovi@gmail.com>
Date: Wed, 2 Oct 2024 20:36:05 +0200
Subject: [PATCH] Performance test for array deopt

---
 src/diff/props.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/diff/props.js b/src/diff/props.js
index 316146f0fd..7d0960765a 100644
--- a/src/diff/props.js
+++ b/src/diff/props.js
@@ -135,7 +135,10 @@ export function setProperty(dom, name, value, oldValue, namespace) {
 
 		if (typeof value == 'function') {
 			// never serialize functions as attribute values
-		} else if (value != null && (value !== false || name[4] === '-')) {
+		} else if (
+			value != null &&
+			(value !== false || (name.length > 4 && name[4] === '-'))
+		) {
 			dom.setAttribute(name, name == 'popover' && value == true ? '' : value);
 		} else {
 			dom.removeAttribute(name);