[Suggestion]: Section from useContext might not be entirely accurate

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Issue 类型
文档
描述清晰度
基本清楚
活跃度
停滞
技术栈
javascript, react
领域
documentation

调研方向

打开 useContext 参考文档中“Optimizing re-renders when passing objects and functions”部分，检查其中关于 MyApp 重新渲染的引述。验证其中描述的行为，然后修改文档，使其重新渲染条件准确无误，并在提交前运行文档检查。

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描述

type: documentation
Summary

There is a paragraph about re-rendering of children when parent re-renders which doesn't seem to be accurate, see below.

Page

https://react.dev/reference/react/useContext#optimizing-re-renders-when-passing-objects-and-functions

Details

Here: https://react.dev/reference/react/useContext#optimizing-re-renders-when-passing-objects-and-functions,
it says in the bottom of the section:

As a result of this change, even if MyApp needs to re-render, the components calling useContext(AuthContext) won’t need to re-render unless currentUser has changed.

This is not entirely true. because if MyApp re-renders, all of its children (including those consuming the context) will re-render by default, regardless if currentUser has changed or not. Unless there was React.memo used - but this is not mentioned in that part of the docs.

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