Package Version Manager Tools

1. Yarn Berry란?

   PnP(Plugin n Play)방식으로 패키지 버전을 관리하는 툴.

2. ESLint & Prettier

   1. yarn add --dev eslint prettier
   2. yarn add eslint-config-react-app
   3. yarn add eslint-config-airbnb
   4. yarn add eslint-plugin-prettier eslint-config-prettier