Packacges

• npm i @emotion/core @emotion/styled
• npm i @emotion/babel-preset-css-prop babel-plugin-emotion
• npm install @emotion/react
• npm install @babel/core --save
• npm i firebase
• npm i firebase-admin
• npm i react-firebase-file-uploader
• npm i date-fns
• npm i -g firebase-tools

firebase hosting

1. firebase login
2. firebase init hosting