From ba4ea41929d2fb9ee05fc576b1dcdca8ffe7ae22 Mon Sep 17 00:00:00 2001
From: ruanyf <yifeng.ruan@gmail.com>
Date: Tue, 27 Oct 2015 17:37:52 +0800
Subject: [PATCH] edit iterator

---
 docs/iterator.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs/iterator.md b/docs/iterator.md
index 15741d6..22393bd 100644
--- a/docs/iterator.md
+++ b/docs/iterator.md
@@ -502,11 +502,11 @@ JavaScript原有的`for...in`循环，只能获得对象的键名，不能直接
 ```javascript
 var arr = ["a", "b", "c", "d"];
 
-for (a in arr) {
+for (let a in arr) {
   console.log(a); // 0 1 2 3
 }
 
-for (a of arr) {
+for (let a of arr) {
   console.log(a); // a b c d
 }
 ```