小编Ale*_*oro的帖子

我有一个看起来像这样的路线配置(只显示我认为可能相关的部分):

var React = require('react');

var Router = require('react-router');
var { Route, DefaultRoute, NotFoundRoute } = Router;

var routes = (
    <Route handler={AppHandler}>
        <DefaultRoute handler={HomeHandler}/>
        <Route name='home' path='/home' handler={HomeHandler}/>
        <Route name='settings' path='/settings/?:tab?' handler={SettingsHandler}/>
        <NotFoundRoute handler={NotFoundHandler}/>
    </Route>
);

Router.run(routes, Router.HistoryLocation, function (Handler) {
    React.render(<Handler/>, document.getElementById('application'));
});

现在,在我的Settings react文件中,我有以下内容:

var Settings = React.createClass({
    mixins: [Router.State],
  render: function() { ... }
});

如果我访问host.local/settings和日志this.getParams()一切正常,文件呈现Object {tab: undefined}在控制台中显示我.但是一旦我尝试host.local/settings/user- 我希望控制台返回类似的东西Object {tab: 'user'}- 整个事情就会崩溃并开始投入Uncaught SyntaxError: Unexpected token …