[英]How to pass a application variables through window object to console using reactjs?
[英]Reactjs Javascript How to get window variables into react
我一直在關注關於如何從 javascript 獲取變量到 reactjs 的另一篇文章。
我在Javascript中有如下對象數組
window.dataArr = [];
function makeJsObj(descr, currDate, done) {
var data = {};
console.log(descr + " " + currDate + " " + done);
data['desc'] = descr;
data['targetDate'] = currDate;
data['done'] = done;
dataArr.push(data);
}
在反應中,這就是我調用上述數組的方式
<App items={window.dataArr}/>
<TodoList items={items} />
和
function TodoList({ items }) {
return items.map(item => (
<h1>{item.desc}</h1>
));
}
我收到一個錯誤,我在未定義上使用地圖
可運行代碼段
import React from 'react';
import logo from './logo.svg';
import './App.css';
function App({items}) {
return (
<div className="App">
<header className="App-header">
<img src={logo} className="App-logo" alt="logo" />
<p>
Edit <code>src/App.js</code> and save to reload.
</p>
<a
className="App-link"
href="https://reactjs.org"
target="_blank"
rel="noopener noreferrer"
>
Learn React
</a>
</header>
<TodoList items={items} />
</div>
);
}
function TodoList({ items }) {
return items.map(item => (
<h1>{item.desc}</h1>
));
}
export default App;
import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
import * as serviceWorker from './serviceWorker';
ReactDOM.render(<App items={window.dataArr}/>, document.getElementById('root'));
serviceWorker.unregister();
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.