您必须将组件传递给connect返回的函数。而不是收到未定义

The code below gives

下面的代码给出了

Uncaught Error: You must pass a component to the function returned by connect. Instead received undefined

未捕获错误:必须将组件传递给connect返回的函数。而不是收到未定义

List.js

List.js

import React from 'react';
import { connect, bindActionCreators } from 'react-redux';
import PostList from '../components/PostList'; // Component I wish to wrap with actions and state
import postList from '../Actions/PostList' //Action Creator defined by me

const mapStateToProps = (state, ownProps) => {
    return state.postsList
}

const mapDispatchToProps = (dispatch) => {
    return bindActionCreators({"postsList":postList},dispatch)
}

export default connect(mapStateToProps, mapDispatchToProps)(PostList);

PostList.js

PostList.js

import React from 'react'

export const PostList = (props) => {
    return <div>List</div>
}

Please help me with a solution?

请帮我个忙好吗?

1 个解决方案

#1

You are doing import PostList from '../components/PostList'; so you need to use export default in your PostList.js file.

您正在从'../组件/PostList'进行导入PostList;所以需要在PostList中使用export default。js文件。

Otherwise you need to do import { PostList } from '../components/PostList';.

否则需要从'../组件/PostList'中导入{PostList};

To whoever is interested, here is a nice article about es6 import/export syntax: http://www.2ality.com/2014/09/es6-modules-final.html

对于感兴趣的人，这里有一篇关于es6导入/导出语法的好文章:http://www.2ality.com/2014/09/es6-modules-final.html

#1