なんかコンソールエラーが出る
2024-12-05T14:46
ハイドレーションって何…？
Console Error
Hydration failed because the server rendered HTML didn’t match the client. As a result this tree will be regenerated on the client. This can happen if a SSR-ed Client Component used
A server/client branch
if (typeof window !== 'undefined').Variable input such as
Date.now()orMath.random()which changes each time it’s called.Date formatting in a user’s locale which doesn’t match the server.
External changing data without sending a snapshot of it along with the HTML.
Invalid HTML tag nesting.
It can also happen if the client has a browser extension installed which messes with the HTML before React loaded.
See more info here: https://nextjs.org/docs/messages/react-hydration-error