From 32c1d1875d4b80f260429c67bc4f9366e0901250 Mon Sep 17 00:00:00 2001
From: ruanyf <yifeng.ruan@gmail.com>
Date: Sun, 10 Feb 2019 15:48:21 +0800
Subject: [PATCH] docs(generator): edit yield*

---
 docs/generator.md | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/docs/generator.md b/docs/generator.md
index b66d23b..3a658c8 100644
--- a/docs/generator.md
+++ b/docs/generator.md
@@ -1005,6 +1005,12 @@ for(let x of iterTree(tree)) {
 // e
 ```
 
+由于扩展运算符`...`默认调用 Iterator 接口，所以上面这个函数也可以用于嵌套数组的平铺。
+
+```javascript
+[...iterTree(tree)] // ["a", "b", "c", "d", "e"]
+```
+
 下面是一个稍微复杂的例子，使用`yield*`语句遍历完全二叉树。
 
 ```javascript