next.js 嘿,我正试图使用本地存储在新的应用程序路由器在未来的js 13,但应用程序打破每次我使用它,虽然我申请使用客户端在顶部

hgc7kmma  于 2023-08-04  发布在  其他
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这是redux片,我想使用本地存储添加产品到购物车,但它不工作在下一个js13应用程序,我用使用客户端方法也

import { createSlice } from "@reduxjs/toolkit";
import toast from "react-hot-toast";

const initialState = {
  cartState: false,
  cartItems: localStorage.getItem("cart")
    ? JSON.parse(localStorage.getItem("cart"))
    : [], // Let Suppose Database
  cartTotalAmount: 0,
  cartTotalQantity: 0,
};

const CartSlice = createSlice({
  initialState,
  name: "cart",
  reducers: {
    setOpenCart: (state, action) => {
      state.cartState = action.payload.cartState;
    },
    setCloseCart: (state, action) => {
      state.cartState = action.payload.cartState;
    },
    setAddItemToCart: (state, action) => {
      const itemIndex = state.cartItems.findIndex(
        (item) => item.id === action.payload.id
      );

      if (itemIndex >= 0) {
        state.cartItems[itemIndex].cartQuantity += 1;

        toast.success(`Item QTY Increased`);
      } else {
        const temp = { ...action.payload, cartQuantity: 1 };
        state.cartItems.push(temp);

        toast.success(`${action.payload.title} added to Cart`);
      }

      localStorage.setItem("cart", JSON.stringify(state.cartItems));
    },

    setRemoveItemFromCart: (state, action) => {
      const removeItem = state.cartItems.filter(
        (item) => item.id !== action.payload.id
      );

      state.cartItems = removeItem;
      localStorage.setItem("cart", JSON.stringify(state.cartItems));

      toast.success(`${action.payload.title} Removed From Cart`);
    },

    setIncreaseItemQTY: (state, action) => {
      const itemIndex = state.cartItems.findIndex(
        (item) => item.id === action.payload.id
      );

      if (itemIndex >= 0) {
        state.cartItems[itemIndex].cartQuantity += 1;

        toast.success(`Item QTY Increased`);
      }
      localStorage.setItem("cart", JSON.stringify(state.cartItems));
    },

    setDecreaseItemQTY: (state, action) => {
      const itemIndex = state.cartItems.findIndex(
        (item) => item.id === action.payload.id
      );

      if (state.cartItems[itemIndex].cartQuantity > 1) {
        state.cartItems[itemIndex].cartQuantity -= 1;

        toast.success(`Item QTY Decreased`);
      }
      localStorage.setItem("cart", JSON.stringify(state.cartItems));
    },

    setClearCartItems: (state, action) => {
      state.cartItems = [];
      toast.success(`Cart Cleared`);
      localStorage.setItem("cart", JSON.stringify(state.cartItems));
    },

    setGetTotals: (state, action) => {
      let { totalAmount, totalQTY } = state.cartItems.reduce((cartTotal, cartItem)=> {
        const { price, cartQuantity } = cartItem;
        const totalPrice = price * cartQuantity;

        cartTotal.totalAmount += totalPrice;
        cartTotal.totalQTY += cartQuantity;

        return cartTotal;
      }, {
        totalAmount: 0,
        totalQTY: 0,
      });

      state.cartTotalAmount = totalAmount;
      state.cartTotalQantity = totalQTY;
    },
  },
});

export const {
  setOpenCart,
  setCloseCart,
  setAddItemToCart,
  setRemoveItemFromCart,
  setIncreaseItemQTY,
  setDecreaseItemQTY,
  setClearCartItems,
  setGetTotals
} = CartSlice.actions;

export const selectCartState = (state) => state.cart.cartState;
export const selectCartItems = (state) => state.cart.cartItems;

export const selectTotalAmount = (state) => state.cart.cartTotalAmount;
export const selectTotalQTY = (state) => state.cart.cartTotalQantity;

export default CartSlice.reducer;

字符串
这是redux slice,我想使用本地存储将产品添加到购物车,但它在next.js 13应用程序上不起作用,我使用了使用客户端方法,也可以使用本地存储API

mf98qq94

mf98qq941#

即使是带有use client的组件,在第一次页面加载时也会呈现在服务器上。您必须将if (typeof window !== "undefined")检查添加到服务器上不可用的所有内容。
此外,确保在服务器上,您的存储永远不会更改-因为如果您将其作为export const store =类型的变量,服务器端,该存储将在SSRed的 * 所有 * 请求之间共享,因此如果您在其中添加数据,则数据会混淆。

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