如何检查反应组件实例

Question

我有一些代码：

export default function universalRouter(location, history, store) {

return new Promise((resolve, reject) => {
        Router.run(routes, location, [createTransitionHook(store)], (error, initialState, transition) => {                    
                const component = (<Provider store={store}
                    key = 'provider' > {() => < Router{...initialState}  
                    children = {routes}/>} < /Provider>);
                    return resolve({
                        component,
                        isRedirect: false
                    });

                });
        });
}

和一些路线：

<Route>
   ...
   <Route path='*' component={NotFound}/>
</Route>

如何检入此代码组件解析NotFound，也许是instanceof Notfound，react-router v1.0.0的版本

Answer 1

export default function universalRouter(location, history, store) {

return new Promise((resolve, reject) => {
        Router.run(routes, location, [createTransitionHook(store)], (error, initialState, transition) => {                    
                const component = (<Provider store={store}
                    key = 'provider' > {() => < Router{...initialState}  
                    children = {routes}/>} < /Provider>);
                    return resolve({
                        component,
                        isRedirect: true
                    });

                });
        });
}