[英]Why isn't TinyMCE 5 rendering formatted html on page and in database?
[英]Why can't rendering HTML page in React application?
我的 React 应用程序中有 3 个组件用于导航栏。 在每个组件中,都有一个 id = 'root' 的 div 元素
索引.html
<div id="root"></div>
这就是我的 App.js 的外观 -
应用程序.js
import logo from './logo.svg';
import './App.css';
import {Home} from './Home';
import {Department} from './Department';
import {Employee} from './Employee';
import {Navigation} from './Navigation';
import {BrowserRouter, Route, Routes} from 'react-router-dom';
function App() {
return (
<BrowserRouter>
<div className="container">
<h3 className="m-3 d-flex justify-content-center">
React JS Tutorial
</h3>
<Navigation/>
<Routes>
<Route path='/' component={Home} exact/>
<Route path='/department' component={Department}/>
<Route path='/employee' component={Employee}/>
</Routes>
</div>
</BrowserRouter>
);
}
部门组件示例:
部门.js
import React, {Component} from 'react';
export class Department extends Component{
render(){
return(
<div className="mt-5 d-flex justify-content-left">
This is Department page
</div>
)
}
}
这是我的 index.js
import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
import reportWebVitals from './reportWebVitals';
import { Home } from './Home';
//ReactDOM.render(React.createElement(App, null), document.getElementById('root'));
const root = ReactDOM.createRoot(
document.getElementById('root')
);
const element = <h1>Hello, world</h1>;
root.render(React.createElement(App, null), document.getElementsByClassName('root'));
我尝试改用 ReactDOM 但没有任何成功,这就是它的外观
更新已解决
问题是我按组件而不是元素路由
错误<Route path='/department' component={Department}/>
正确<Route path='/department' element={<Department/>}/>
解决了
问题是我按组件而不是元素路由
错误<Route path='/department' component={Department}/>
正确<Route path='/department' element={<Department/>}/>
您正在使用getElementsByClassName
,但您的 div: <div id="root"></div>
没有属性class="root"
改用getElementById("root")
。
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