[英]react-bootstrap NavBar trouble
我是ReactJS的新手,在使用react-bootstrap導航欄時遇到麻煩。 我可以使用指導,因為對此幾乎沒有信息。
當我將navbar代碼直接添加到index.js中並在那里呈現它時,它可以工作,但是我想對每個功能都使用組件。
//index.js
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App';
import './index.css';
ReactDOM.render(<App/>, document.getElementById('App'));
//App.js
import '../public/App.css';
import NavigationBar from './components/NavigationBar';
import Appintro from './components/Appintro';
class App extends Component {
render() {
return (
<div className="App">
<NavigationBar />
<Appintro />
</div>
);
}
}
export default App;
// NavBar組件[這不起作用]
let React , {Component} = require('react')
let Navbar = require("react-bootstrap/lib/Navbar");
let NavItem = require("react-bootstrap/lib/NavItem");
let Nav = require ("react-bootstrap/lib/Nav");
class NavigationBar extends Component {
render() {
return (
<div>
const appNavbar = (
<Navbar inverse collapseOnSelect>
<Navbar.Header>
<Navbar.Brand>
<a href="#">Company-x</a>
</Navbar.Brand>
<Navbar.Toggle />
</Navbar.Header>
<Navbar.Collapse>
<Nav pullRight>
<NavItem eventKey={1} href="#">home</NavItem>
<NavItem eventKey={2} href="#">about</NavItem>
<NavItem eventKey={3} href="#">products</NavItem>
<NavItem eventKey={4} href="#">services</NavItem>
</Nav>
</Navbar.Collapse>
</Navbar>
)
</div>
);
}
}
export default NavigationBar;
// 介紹
import React, { Component } from 'react';
import headeeer from '../images/headeeer.jpg';
let Jumbotron = require ("react-bootstrap/lib/Jumbotron");
class Appintro extends Component {
render() {
Jumbotron=(
<h1>Hello world, I am react-bootstrap jumbotron</h1>
)
return (
<div>
{Jumbotron}
<img src={headeeer} className='imagesss' alt='jhe' />
</div>
);
}
}
export default Appintro;
您的反應代碼無效。 請參閱以下有關執行此操作的正確方法。
let React , {Component} = require('react') let Navbar = require("react-bootstrap/lib/Navbar"); let NavItem = require("react-bootstrap/lib/NavItem"); let Nav = require ("react-bootstrap/lib/Nav"); class NavigationBar extends Component { render() { const appNavbar = ( <Navbar inverse collapseOnSelect> <Navbar.Header> <Navbar.Brand> <a href="#">Company-x</a> </Navbar.Brand> <Navbar.Toggle /> </Navbar.Header> <Navbar.Collapse> <Nav pullRight> <NavItem eventKey={1} href="#">home</NavItem> <NavItem eventKey={2} href="#">about</NavItem> <NavItem eventKey={3} href="#">products</NavItem> <NavItem eventKey={4} href="#">services</NavItem> </Nav> </Navbar.Collapse> </Navbar> ); return ( <div> {appNavbar} </div> ); } } export default NavigationBar;
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