Functions for manipulating a Shopping Cart made up of an array, held in State. #react

Cart Manipulation Functions.md

State

[ cartItems, setCartItems ] = useState([])

Add To Cart

function addToCart(newItem) {
        setCartItems(prevItems => [...prevItems, newItem])
}

Remove From Cart

function removeFromCart(itemId) {
        setCartItems(prevItems => prevItems.filter(item => item.id !== itemId))
}

Empty Cart

function emptyCart() {
        setCartItems([])
}