From b8463d447c791aa454db4ec3bc904ffed2b4dc2b Mon Sep 17 00:00:00 2001
From: deathbots <deathbots@gmail.com>
Date: Sat, 29 May 2021 12:21:41 -0700
Subject: [PATCH] Fix concat example

Immutability / concat example suggested creating newWords but setting state to words.
---
 content/docs/optimizing-performance.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/content/docs/optimizing-performance.md b/content/docs/optimizing-performance.md
index 353b08aef62..6862f9b868e 100644
--- a/content/docs/optimizing-performance.md
+++ b/content/docs/optimizing-performance.md
@@ -233,7 +233,7 @@ could be rewritten using `concat` as:
 ```javascript
 function handleClick() {
   const newWords = words.concat(['marklar']);
-  setWords(words);
+  setWords(newWords);
 }
 ```