redux-toolkit react-redux typescript 连接错误答案

【问题标题】：redux-toolket react-redux typescript connect errorredux-toolkit react-redux typescript 连接错误
【发布时间】：2021-04-26 08:19:34
【问题描述】：

我通过create-react-app test --template redux-typescript创建我的项目，然后我通过connect而不是钩子重写/src/features/counter/Counter.tsx，然后vscode给出这个错误。

import React, { Component } from 'react';
import { connect } from 'react-redux';
import { bindActionCreators } from 'redux';
import { RootState, AppDispatch } from '../../app/store';
import {
  decrement,
  increment,
  incrementByAmount,
  incrementAsync,
  incrementIfOdd,
} from './counterSlice';
import styles from './Counter.module.css';

const mapState = (state: RootState) => {
  return {
    count: state.counter.value
  }
}

const mapDispatch = (dispatch: AppDispatch) => {
  return {
    decrement: bindActionCreators(decrement, dispatch),
    increment: bindActionCreators(increment, dispatch),
    incrementByAmount: bindActionCreators(incrementByAmount, dispatch),
    incrementAsync: bindActionCreators(incrementAsync, dispatch),
    incrementIfOdd: bindActionCreators(incrementIfOdd, dispatch),
  }
}

type TypeofMapState = ReturnType<typeof mapState>;
type TypeofMapDispatch = ReturnType<typeof mapDispatch>;

type Ipros = TypeofMapState & TypeofMapDispatch;

class CounterComp extends Component<Ipros> {
  state = {
    incrementAmount: '2'
  }

  setIncrementAmount = (incrementAmount: string) => {
    this.setState({ incrementAmount });
  }

  render() {
    ...
  }
}

const Counter = connect<TypeofMapState, TypeofMapDispatch>(mapState, mapDispatch)(CounterComp);

export {
  Counter
}

不知道哪里出了问题，我只添加了TypeofMapState和TypeofDispatch的连接类型参数。

【问题讨论】：

标签： typescript react-redux connect redux-toolkit

【解决方案1】：

使用

const Counter = connect<TypeofMapState, TypeofMapDispatch, {}, RootState>(mapState, mapDispatch)(CounterComp);

解决这个错误

【讨论】：