React 的 reduxjs/toolkit 在 typescript 报错的原因？

Question

报错：TS2322: Type  any  is not assignable to type  never 

const ErrorSlice = createSlice({
    name: 'error',
    initialState: [],
    reducers: {
        Publish: (state, action) => {
            console.log(action)
            state = [...state, action.payload]
        },
        Consume: () => [],
    }
})

调用端

await axios
    .post(`host`, Params)
    .then((data: Response) => data.data.Response)
    .catch((e) => {
        ErrorState.dispatch(Publish(e.response.data.Error))
    })

我不太明白 never 什么意思我给的不是字符么很明显的

Answer 1

需要使用插件自己的数据类型 PayloadAction

import { createSlice, PayloadAction } from '@reduxjs/toolkit'

const ErrorSlice = createSlice({
    name: 'error',
    initialState: "",
    reducers: {
        Publish: (_, action: PayloadAction<你自己的类型或者基础类型>) => action.payload,
        Consume: () => "",
    }
})

• 参考：https://redux.js.org/usage/usage-with-typescript#standard-red...