如何检查反应组件实例答案

【问题标题】：How to check react component instance如何检查反应组件实例
【发布时间】：2023-03-03 05:23:25
【问题描述】：

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
                    });

                });
        });
}

还有一些路线：

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

如何签入此代码组件解析NotFound，可能是instanceof Notfound，react-router v1.0.0版本

【问题讨论】：

标签： node.js react-router

【解决方案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
                    });

                });
        });
}

【讨论】：