我想声明操作的有效负载，但它失败了

Question

我有一个麻烦，在一个action redux切片减速器内添加有效载荷，我在互联网上搜索，但我没有找到解决这个问题的解决方案，所以有我的代码减速器:

topicsSlice code:
import {createSlice} from "@reduxjs/toolkit";
const topicsSlice = createSlice({
name : "topics",
initialState: {
topics:{}
},
reducers: {
addTopic: (state, action={type: "topics/addTopic",payload: {id, name, icon}}) => {

const newTopic = {id: id, name: name, icon: icon}
state.topics = {...state.topics, id: newTopic};
}
}
});
export const selectedTopics = (state) => state.topics.topics;
export const {addTopic} = topicsSlice.actions;
export default topicsSlice.reducer;

Answer 1

解构在这里的作用如下

addTopic: (state, {payload: {id, name, icon}}) => {