[Typo]: Code example mistake in useMemo page

Summary

There is a mistake in the ChatRoom example code on the useMemo page, specifically in the 'Preventing an Effect from firing too often' section.

Page

https://react.dev/reference/react/useMemo#preventing-an-effect-from-firing-too-often

Details

There are two mistakes in the ChatRoom example under the 'Preventing an Effect from firing too often' section:

1. The line const options = createOptions() suddenly appears in the code without context. It seems like this should be removed.
2. In the comment 'Only changes when createOptions changes', the reference to 'createOptions' should be replaced with 'options object'. This is because options is the actual dependency in the useEffect.

Screenshot of typo:

React useMemoのリファレンスページを「Preventing an Effect from firing too often」セクションで開き、ChatRoomの例を確認してください。余分なcreateOptions行と依存関係のコメントを確認し、そのうえで例が自己完結しており、文言がoptionsオブジェクトを正確に説明していることを検証してください。