Javascript 无法读取属性';地点';未定义的
我尝试使用react路由器dom4.0.0库。但它给了我这个错误 未捕获的TypeError:无法读取未定义的属性“位置” 这似乎是browserHistore中的问题。在我使用react router 2.x.x之前,一切都很好。 这是我的index.jsJavascript 无法读取属性';地点';未定义的,javascript,reactjs,react-router,Javascript,Reactjs,React Router,我尝试使用react路由器dom4.0.0库。但它给了我这个错误 未捕获的TypeError:无法读取未定义的属性“位置” 这似乎是browserHistore中的问题。在我使用react router 2.x.x之前,一切都很好。 这是我的index.js import 'babel-polyfill' import React from 'react' import { Router, hashHistory } from 'react-router-dom' import { render
import 'babel-polyfill'
import React from 'react'
import { Router, hashHistory } from 'react-router-dom'
import { render } from 'react-dom'
import { Provider } from 'react-redux'
import { configureStore } from './store'
import { routes } from './routes'
const store = configureStore()
render(
<Provider store={store}>
<Router history={hashHistory} routes={routes} />
</Provider>,
document.getElementById('root')
)
React Router v4是一个完整的重写,与您在代码中假设的以前版本不兼容。话虽如此,你不应该期望仅仅升级到一个新的主要版本(V4)并让你的应用程序正常工作。您应该查看或降级回V2/3。这里有一些代码可以帮助您朝着正确的方向开始
import 'babel-polyfill'
import React from 'react'
import { BrowserRouter as Router, Route } from 'react-router-dom'
import { render } from 'react-dom'
import { Provider } from 'react-redux'
import { configureStore } from './store'
import App from './containers/App'
import Main from './containers/Main'
import First from './containers/First'
const store = configureStore()
render(
<Provider store={store}>
<Router>
<Route path='/' component={Main} />
<Route path='/path' component={First} />
</Router>
</Provider>,
document.getElementById('root')
)
导入“babel polyfill”
从“React”导入React
从“react Router dom”导入{BrowserRouter as Router,Route}
从'react dom'导入{render}
从“react redux”导入{Provider}
从“/store”导入{configureStore}
从“./containers/App”导入应用程序
从“/containers/Main”导入Main
首先从“./containers/First”导入
const store=configureStore()
渲染(
,
document.getElementById('root'))
)
import { BrowserRouter as Router, Route } from 'react-router-dom'
import { Router, Route } from 'react-router-dom'
否则,如果其版本小于4,则导入路由器:-
import { Router, Route } from 'react-router-dom'
npm i历史记录
然后在索引/路由文件中使用它,如下所示:
import React from 'react';
import ReactDOM from 'react-dom';
import { Router, Switch, Route} from 'react-router-dom';
import createBrowserHistory from 'history/createBrowserHistory';
import App from './components/App';
import './index.css'
const history = createBrowserHistory();
ReactDOM.render(
<Router history={history}>
<Switch>
<Route path='/' component={App}/>
</Switch>
</Router>,
document.getElementById('root')
);
从“React”导入React;
从“react dom”导入react dom;
从“react Router dom”导入{Router,Switch,Route};
从“历史记录/createBrowserHistory”导入createBrowserHistory;
从“./components/App”导入应用程序;
导入“./index.css”
const history=createBrowserHistory();
ReactDOM.render(
,
document.getElementById('root'))
);
import React from 'react';
import ReactDOM from 'react-dom';
import { Router, Switch, Route} from 'react-router-dom';
import createBrowserHistory from 'history/createBrowserHistory';
import App from './components/App';
import './index.css'
const history = createBrowserHistory();
ReactDOM.render(
<Router history={history}>
<Switch>
<Route path='/' component={App}/>
</Switch>
</Router>,
document.getElementById('root')
);