From b3bcdebdb7b96c8a69fc141b4b796648e33ec8ee Mon Sep 17 00:00:00 2001
From: zhongsp <patrick.zhongsp@gmail.com>
Date: Tue, 17 Sep 2019 20:06:41 +0800
Subject: [PATCH] Add the recommendation not to use the Symbol wrapper object
 type PR1001

---
 doc/handbook/declaration files/Do's and Don'ts.md | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/doc/handbook/declaration files/Do's and Don'ts.md b/doc/handbook/declaration files/Do's and Don'ts.md
index 3d86ec1..0c4abf0 100644
--- a/doc/handbook/declaration files/Do's and Don'ts.md	
+++ b/doc/handbook/declaration files/Do's and Don'ts.md	
@@ -1,8 +1,8 @@
 # 普通类型
 
-## `Number`，`String`，`Boolean`和`Object`
+## `Number`，`String`，`Boolean`，`Symbol`和`Object`
 
-*不要*使用如下类型`Number`，`String`，`Boolean`或`Object`。
+*不要*使用如下类型`Number`，`String`，`Boolean`，`Symbol`或`Object`。
 这些类型指的是非原始的装盒对象，它们几乎没在JavaScript代码里正确地使用过。
 
 ```ts
@@ -10,7 +10,7 @@
 function reverse(s: String): String;
 ```
 
-*应该*使用类型`number`，`string`，and `boolean`。
+*应该*使用类型`number`，`string`，`boolean`和`symbol`。
 
 ```ts
 /* OK */