在中更新两次相同的状态

Question

如何在同一个减速器中两次更新我的状态

我在redux商店的状态

const initialState = {
 cart:[] as any ,
   Products:[
     {
       id: "1",
       title: "Realme 3 pro",
       image: {
         img1: "https://www.monotain.com/wp-content/uploads/2019/12/realme-5-pro.jpg",
         img2: "https://static.techspot.com/images/products/2019/smartphones/org/2019-05-20-product-7.jpg"
       },
       price: "10000",
       details: "Take photography a notch higher with the Realme 3 Pro as it comes with a 25 MP AI Selfie Camera and 16 MP + 5 MP Rear Camera with Sony IMX519 Sensor. The Qualcomm Snapdragon 710 AIE, multi-core AI Engine and Adreno 616 GPU redefine your smartphone experience.",
       seller: "Cloudtail India",
       quantity: 0
     }
   ],

用于更新状态的

减速器

case ADD_TO_CART :
  let num = parseInt(action.product.quantity) + 1
  console.log(num)
  if (state.cart.includes(action.product)) {
    alert("Please increase the product at cart page");
  } else {
    return {
      ...state,
      cart: state.cart.concat(action.product)    
    }
  }

在这里，我希望将产品更新为cart状态，同时也希望增加更新到cart的数量。

Answer 1

不要发出警告，请尝试：

const updatedCart = {...cart}
updatedCart.find(i => i.id === action.product.id).quantity +=1
return {
      ...state,
      cart: updatedCart
}