我是反应中的初学者,我希望在映射数组后使用react-router显示一个简单的链接列表。 这是浏览器中的错误:
警告:数组或迭代器中的每个子节点都应该有一个唯一的"键"丙
检查
App
的渲染方法。 在BrowserRouter中(在App.js:59) 在App中(在index.js:7)
这是我的所有app.js:
import React, { Component } from 'react';
import { BrowserRouter as Router, Route, Link } from 'react-router-dom';
import Photolist from './photolist';
// import logo from './logo.svg';
import './App.css';
class App extends Component {
constructor(props){
super(props);
this.state = {
}
}
render() {
const tab_albums = [
{
"albumId": 1,
"id": 1,
"title": "accusamus beatae ad facilis cum similique qui sunt",
"url": "http://placehold.it/600/92c952",
"thumbnailUrl": "http://placehold.it/150/92c952"
},
{
"albumId": 1,
"id": 2,
"title": "reprehenderit est deserunt velit ipsam",
"url": "http://placehold.it/600/771796",
"thumbnailUrl": "http://placehold.it/150/771796"
},
{
"albumId": 2,
"id": 66,
"title": "provident rerum voluptatem illo asperiores qui maiores",
"url": "http://placehold.it/600/ee0a7e",
"thumbnailUrl": "http://placehold.it/150/ee0a7e"
},
{
"albumId": 2,
"id": 67,
"title": "veritatis labore ipsum unde aut quam dolores",
"url": "http://placehold.it/600/1279e9",
"thumbnailUrl": "http://placehold.it/150/1279e9"
}
];
const albumsIds = [];
tab_albums.map((album_model) => {
return (
albumsIds.indexOf(album_model.albumId) === -1 ? albumsIds.push(album_model.albumId) : null
)
});
var album_style = {"background": "#cccccc", "marginBottom": "10px", "borderLeft": "5px solid red"};
var style_div = {"width": "50%", "float": "left"};
const liste_album = albumsIds.map((alb_id) => {
return (
<Router>
<li key={alb_id} style={album_style}><Link to={"/album"+alb_id}>Album : { alb_id }</Link></li>
{/* <Route path="/photolist" component={Photolist}/> */}
</Router>
)
});
return (
<div className="App">
<div style={style_div}>
<ul>{liste_album}</ul>
</div>
<div style={style_div}>
<button>wishlist</button>
<Photolist />
</div>
</div>
);
}
}
export default App;
&#13;
谢谢你帮忙......