From 732adc05fee69c88793a4e3efb022776ff7fc8ef Mon Sep 17 00:00:00 2001
From: KJyang-0114 <kjyang011487@gmail.com>
Date: Tue, 10 Mar 2026 04:59:24 +0800
Subject: [PATCH] fix(javascript): highlight self as variable language

Self should be highlighted the same as window and document.
This fixes issue #4339.
---
 src/languages/lib/ecmascript.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/languages/lib/ecmascript.js b/src/languages/lib/ecmascript.js
index 742cbc3828..3ad0198e2b 100644
--- a/src/languages/lib/ecmascript.js
+++ b/src/languages/lib/ecmascript.js
@@ -157,7 +157,8 @@ export const BUILT_IN_VARIABLES = [
   "localStorage",
   "sessionStorage",
   "module",
-  "global" // Node.js
+  "global", // Node.js
+  "self"
 ];
 
 const BUILT_INS = [].concat(