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[英]Is there a way to use react-redux (useDispatch) in react using class based components? I am using useDispatch inside render function
[英]I am trying to use map in my react redux app. but after using useDispatch, the console is showing error
我正在开发一个应用程序,但我在控制台中遇到错误。 我正在发送错误图片以及导致错误的代码。 谁能告诉我是什么导致了这个问题?
import React from 'react';
import { useSelector, shallowEqual } from 'react-redux';
import AddBook from './form';
import SingleBook from './singleBook';
const DisplayBooks = () => {
const books = useSelector((state) => state.booksArray, shallowEqual);
return (
<div className="book-list">
{books.map((book) => <SingleBook key={book.id} title={book.title} author={book.author} />)}
<AddBook />
</div>
)
};
export default DisplayBooks;
下面我粘贴了控制台图像。
我认为这行代码导致了问题
const books = useSelector((state) => state.booksArray, shallowEqual)
改成,
const books = useSelector((state) => state.booksArray)
console.log(books) -> to check whether the books is an array or not
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