From cf00244e01b2f48505ccedef2b43fbd3c21b2eb7 Mon Sep 17 00:00:00 2001
From: fisker Cheung <lionkay@gmail.com>
Date: Wed, 17 Jun 2026 06:23:25 +0800
Subject: [PATCH] Enable `unicorn/operator-assignment` rule (#19392)

---
 eslint.config.js                   | 1 -
 src/language-css/parser-postcss.js | 2 +-
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/eslint.config.js b/eslint.config.js
index 6eeb3c57a..052df209b 100644
--- a/eslint.config.js
+++ b/eslint.config.js
@@ -295,7 +295,6 @@ const configs = [
       ],
       "unicorn/number-literal-case": "off",
       "unicorn/numeric-separators-style": "off",
-      "unicorn/operator-assignment": "off",
       "unicorn/prefer-array-flat": [
         "error",
         {
diff --git a/src/language-css/parser-postcss.js b/src/language-css/parser-postcss.js
index 9587f8838..17ff99b8e 100644
--- a/src/language-css/parser-postcss.js
+++ b/src/language-css/parser-postcss.js
@@ -127,7 +127,7 @@ function parseNestedCSS(node, options) {
       }
 
       if (node.raws.between && node.raws.between.trim().length > 0) {
-        params = params + node.raws.between;
+        params += node.raws.between;
       }
 
       params = params.trim();