From 152c9e24a971197b73f7e03419f535c64b241fd0 Mon Sep 17 00:00:00 2001
From: mg-chao <chao@mgchao.top>
Date: Thu, 6 Jan 2022 20:25:45 +0800
Subject: [PATCH] fix: for loop code example

---
 course-book/contents/advance/functional-programing/iterator.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/course-book/contents/advance/functional-programing/iterator.md b/course-book/contents/advance/functional-programing/iterator.md
index 209bd5dd..f17caeb0 100644
--- a/course-book/contents/advance/functional-programing/iterator.md
+++ b/course-book/contents/advance/functional-programing/iterator.md
@@ -9,7 +9,7 @@
 例如以下的JS代码就是一个循环:
 ```javascript
 let arr = [1, 2, 3];
-for i = 0; i < arr.length() - 1; i ++ {
+for (let i = 0; i < arr.length; i++) {
     console.log(arr[i]);
 }
 ```