• Drag item from List and Drop to Container
• Drag Item Around in Container
• Study react-dnd
• study useContext for state management
• study redux toolkit for state management

• React Hooks
• immutability-helper : Mutate a copy of data without changing the original source
• react-dnd
• react-redux
• @reduxjs/toolkit

• Read document of react-dnd
• Initial Box component
• useMemo for BoxStyle
• Initial Container
• Display box in Container
• Drag box around in Container
• Initial List component
• useMemo for ListStyle
• Drag item from List and Drop to Container
• Display item currently dnd to Container
• Read Document of immutability-helper
• use immutability-helper to add newItem to boxes
• check isDragBox and isDragList
• useContext for state management : isDragBox, isDragList
• Read Document of react-redux
• Read Document of redux toolkit
• update state management with Redux-toolkit
• setBoxDragging
• setListDragging
• addItemBox
• use immutability-helper to add newItem to boxItems
• setNewLocationItem
• use immutability-helper to update location of item in boxItems

.
├── .gitignore
├── package.json
├── README.md
├── public
└── src
    ├── app
        └── store.js
    ├── components
        ├── Box.jsx
        ├── BoxSlice.js
        ├── Container.jsx
        ├── List.jsx
        └── index.jsx
    ├── App.js
    ├── ItemTypes.js
    └── index.js

Use the cmd line to clone repo to your computer

git clone [github_repo_url]

Use the cmd line to install dependencies.

npm install

Run in cmd for start the dependencies server

npm start