From 7518f7b12da4d8d2de1cf4a5a948a0b832c8e183 Mon Sep 17 00:00:00 2001
From: ruanyf <yifeng.ruan@gmail.com>
Date: Mon, 13 May 2019 17:24:27 +0800
Subject: [PATCH] docs(class-extends): fix #854

---
 docs/class-extends.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/class-extends.md b/docs/class-extends.md
index 5d112c4..578b903 100644
--- a/docs/class-extends.md
+++ b/docs/class-extends.md
@@ -447,7 +447,7 @@ B.__proto__ = A;
 这两条继承链，可以这样理解：作为一个对象，子类（`B`）的原型（`__proto__`属性）是父类（`A`）；作为一个构造函数，子类（`B`）的原型对象（`prototype`属性）是父类的原型对象（`prototype`属性）的实例。
 
 ```javascript
-Object.create(A.prototype);
+B.prototype = Object.create(A.prototype);
 // 等同于
 B.prototype.__proto__ = A.prototype;
 ```