From f43f508513af29e9b9a5dedc492abf4fd53292cd Mon Sep 17 00:00:00 2001
From: Archkon <180910180+Archkon@users.noreply.github.com>
Date: Sun, 28 Sep 2025 00:47:19 +0800
Subject: [PATCH] replace invalid JS according to newest spec

which will cause SyntaxError: The left-hand side of a for-of loop may not be 'async'

refer to https://tc39.es/ecma262/#sec-for-in-and-for-of-statements
---
 js-quirks.md | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/js-quirks.md b/js-quirks.md
index 20c621c92..5ecf27a70 100644
--- a/js-quirks.md
+++ b/js-quirks.md
@@ -360,11 +360,11 @@ to make it a little less confusing.)
     Amazingly, both of the following are valid JS code:
 
     ```js
-    for (async of => {};;) {}
-    for (async of []) {}
+    for (using of = resource;;) {}
+    for (using of []) {}
     ```
 
-    In the first line, `async` is a keyword and `of` is an identifier;
+    In the first line, `using` is a keyword and `of` is an identifier;
     in the second line it's the other way round.
 
     Even a simplified JS grammar can't be LR(1) as long as it includes