1.创建counterSlice
features/counter/counterSlice.js
import { createSlice } from '@reduxjs/toolkit'
import type { PayloadAction } from '@reduxjs/toolkit'
export interface CounterState {
value: number
}
const initialState: CounterState = {
value: 0,
}
export const counterSlice = createSlice({
name: 'counter',
initialState,
reducers: {
increment: (state) => {
// Redux Toolkit allows us to write "mutating" logic in reducers. It
// doesn't actually mutate the state because it uses the Immer library,
// which detects changes to a "draft state" and produces a brand new
// immutable state based off those changes
state.value += 1
},
decrement: (state) => {
state.value -= 1
},
incrementByAmount: (state, action: PayloadAction<number>) => {
state.value += action.payload
},
},
})
// Action creators are generated for each case reducer function
export const { increment, decrement, incrementByAmount } = counterSlice.actions
export default counterSlice.reducer
2.store中引入counterSlice
app/store.js
import { configureStore } from '@reduxjs/toolkit'
import counterReducer from '../features/counter/counterSlice'
export const store = configureStore({
reducer: {
counter: counterReducer,
},
})
// Infer the `RootState` and `AppDispatch` types from the store itself
export type RootState = ReturnType<typeof store.getState>
// Inferred type: {posts: PostsState, comments: CommentsState, users: UsersState}
export type AppDispatch = typeof store.dispatch
3.使用store
index.js
import React from 'react'
import ReactDOM from 'react-dom'
import './index.css'
import App from './App'
import { store } from './app/store'
import { Provider } from 'react-redux'
ReactDOM.render(
<Provider store={store}>
<App />
</Provider>,
document.getElementById('root')
)
参考链接:
https://redux-toolkit.js.org/tutorials/quick-start