[英]Reactjs - Cant render functional component
I'm trying to render a functional component.我正在尝试渲染功能组件。 But for some reason, I'm getting this sentence on the console
You need to enable JavaScript to run this app.
但出于某种原因,我在控制台上收到这句话
You need to enable JavaScript to run this app.
This is App.js这是 App.js
import './App.css';
import Home from './components/pages/home/Home';
import SignUp from './components/pages/sign/SignUp';
import Checking from './components/pages/sign/Checking';
import Login from './components/pages/sign/Login';
import Summery from './components/pages/summery/Summery';
import UserList from './components/pages/users/Users';
import { BrowserRouter as Router, Route, Routes } from 'react-router-dom';
import UploadFiles from './components/pages/files/UploadFiles';
function App() {
return (
<Router>
<Routes>
<Route exact path='/' element= {<Home />}/>
<Route path='/sign-up' component= {Checking } />
<Route path='/log-in' element= {<Login />} />
<Route path='/admin' element= {<Summery />} />
<Route path='/users' element= {<UserList />} />
<Route path='/files' element= {<UploadFiles />} />
</Routes>
</Router>
);
}
export default App;
Home, Login, Summery, UserList and UploadFiles are React Components
and not functions. Home、Login、Summery、UserList 和 UploadFiles 是
React Components
而不是函数。 Only Checking
is a function (Trying to convert everything to a function component).只有
Checking
是 function(试图将所有内容转换为 function 组件)。 They all render but only Checking
logging into console You need to enable JavaScript to run this app.
它们都呈现但仅
Checking
登录到控制台You need to enable JavaScript to run this app.
This is Checking.js file这是 Checking.js 文件
import React from "react";
import '../../../App.css';
import Button from '@material-ui/core/Button';
import SendIcon from '@material-ui/icons/Send';
import axios from 'axios';
import bcrypt from 'bcryptjs';
import Navbar from "../../navbar/Navbar";
import { useNavigate } from 'react-router-dom';
export default function Checking() {
const [companyID, setCompanyID] = React.useState('');
const [email, setEmail] = React.useState('');
const navigate = useNavigate();
function handleSubmit(Event) {
Event.preventDefault();
axios.post('/sign-up', {
companyID: companyID,
email: email})
.then(res =>{
//console.log(res.json());
console.log(res);
if(res.status === 200){
//this.app();
//history.push('/login');
}else if (res.status === 400){
console.log("duplicate ID");
}
}).catch(err =>{
// console.log("duplicate ID");
// console.log(err);
});
}
}
return (
<>
<Navbar />
<div className="register-container" ref={this.props.containerRef}>
<h1 className="sign-up">SIGN UP</h1>
<form onSubmit={handleSubmit}>
<div className="form">
<div className="form-group">
{/* <label htmlFor="company id">Company ID : </label> */}
<input
type="number"
name="companyID"
placeholder="Company id"
value={companyID}
onChange={(e) => setCompanyID(e.target.value)}
required/>
</div>
{ <div className="form-group">
{/* <label htmlFor="email">Email : </label> */}
<input
type="text"
name="email" placeholder="Email"
value={email}
onChange={(e) => setEmail(e.target.value)}
required/>
</div> }
<div className="registerbtn">
{/* <button type="submit" class="btn btn-primary">Submit</button> */}
<Button type="submit" endIcon={<SendIcon />} color="primary" variant="contained">
Sign Up
</Button>
</div>
</div>
</form>
</div>
</>
);
}
What am I doing wrong?我究竟做错了什么?
Checking
is also a react component and you need to render it like the others. Checking
也是一个反应组件,您需要像其他组件一样渲染它。
<Route path='/sign-up' element= {<Checking/> } />
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