From fde167e654e65d00b1e9d9f49ac0a7b854af0ae3 Mon Sep 17 00:00:00 2001
From: Kristjan ESPERANTO <35647502+KristjanESPERANTO@users.noreply.github.com>
Date: Fri, 10 Oct 2025 19:46:27 +0200
Subject: [PATCH] feat: add ESlint rule `no-sparse-arrays` for config check

---
 CHANGELOG.md       | 2 ++
 js/check_config.js | 5 ++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 797cb57ad2..404fdc988e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,6 +19,8 @@ planned for 2026-01-01
 
 ### Fixed
 
+- feat: add ESlint rule `no-sparse-arrays` for config check to fix #3910 (#3911)
+
 ### Updated
 
 - [core] Update dependencies (#3909)
diff --git a/js/check_config.js b/js/check_config.js
index 14fda3c51e..d8c9735840 100644
--- a/js/check_config.js
+++ b/js/check_config.js
@@ -58,7 +58,10 @@ function checkConfigFile () {
 					...globals.node
 				}
 			},
-			rules: { "no-undef": "error" }
+			rules: {
+				"no-sparse-arrays": "error",
+				"no-undef": "error"
+			}
 		},
 		configFileName
 	);