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## peerDependencies について

- 一例
    - eslint-config-weseek 側の `peerDependencies`  は、使う側( growi 本体など)が `peerDependencies` のライブラリを使うこと(devDependencies に入る)を想定しているという意味合いを持つ

```
Having a peer dependency means that your package needs a dependency that is the same exact dependency as the person installing your package.
This is useful for packages like react that need to have a single copy of react-dom that is also used by the person installing it.
```
- 参考: <a href="https://classic.yarnpkg.com/en/docs/dependency-types#:~:text=Babel%20or%20Flow).-,peerDependencies,the%20person%20installing%20your%20package.">公式docs</a>
- 分かりやすい記事: https://penpen-dev.com/blog/peerdependencies-toha/

## yarn.lock に追加しない方法

- `yarn add`
- `yarn install`
- 上記2つのコマンド入力の際に `--frozen-lockfile`を入れることで、依存関係を記憶せず（yarn.lock を更新せず）、ライブラリの更新が必要な時に失敗するとのこと


- 参考
    - https://classic.yarnpkg.com/lang/en/docs/cli/install/
    - https://stackoverflow.com/questions/52630404/how-to-install-packages-based-on-the-lock-file-with-yarn#answers-header