• ★★★Material-UI/core
• Material-UI/icons
• react-query
• Came a hard problem, how to type axios, or fetch, or async& await, promise, it's hard to me
• read more function
• useContext/ useReducer
• localStorage
• Add item with certain color selected, the type of item in the cart is different from the product type
• imitate and implement Sephora's color selection function (seems the tricky logic for me)
• useMemo to store the initial value of CartItem, the only changed value is product color
• build a branch to implement useContext