From 21f91a4f513a3ed8fceeef29de673f0281ca7254 Mon Sep 17 00:00:00 2001
From: Chang Wei <changwei1006@gmail.com>
Date: Mon, 27 Nov 2023 15:06:20 +0800
Subject: [PATCH] Update freshness.md

use the correct way to set a new state if the new state contains a part of old state
---
 docs/typings/freshness.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/typings/freshness.md b/docs/typings/freshness.md
index 065a9a4d..4c4f6eaa 100644
--- a/docs/typings/freshness.md
+++ b/docs/typings/freshness.md
@@ -80,7 +80,7 @@ interface State {
 this.setState({ foo: 'Hello' }); // Error: 没有属性 'bar'
 
 // 因为 state 包含 'foo' 与 'bar'，TypeScript 会强制你这么做：
-this.setState({ foo: 'Hello', bar: this.state.bar });
+this.setState((draft) => ({ foo: 'Hello', bar: draft.bar }));
 ```
 
 如果你想使用 Freshness，你可能需要将所有成员标记为可选，这仍然会捕捉到拼写错误：