小编ket*_*rni的帖子

错误信息 -

提供商不支持即时更改商店.您很可能会看到此错误,因为您已更新到Redux 2.x和React Redux 2.x,它们不再自动热重新加载Reducer.有关迁移说明,请参阅https://github.com/reactjs/react-redux/releases/tag/v2.0.0.

configureStore.js -

import { createStore,applyMiddleware } from 'redux';
import ReduxThunk from 'redux-thunk';
import reducers from './reducers';

export default function configureStore(initialState) {
  const store = createStore(reducers,{},applyMiddleware(ReduxThunk));

  if (module.hot) {
    // console.log("in module.hot");
    console.log(reducers);
    module.hot.accept( () => {
      const nextRootReducer = require('./reducers/index').default;
      store.replaceReducer(nextRootReducer)
    });
  }
    return store;
}

App.js -

render(){
    const store = configureStore();
    return(
          <Provider store = {store}>
                <Container>
                      <Login/>
                </Container>
        </Provider>

参考 - 视频 - https://www.youtube.com/watch?v=t2WXfAqLXJw
github - https://github.com/reactjs/react-redux/releases/tag/v2.0.0

实现了视频中给出的解决方案

我有一个带记录 的收款余额

{  
 "_id" : "uezyuLx4jjfvcqMXN",   
  "amount" : "10",   
"createdBy" : "AGuT6zQtSojvozbbg"   
}
{  
 "_id" : "dCC8GrNdEjym3ryua",   
"amount" : "10",  
"createdBy" : "AGuT6zQtSojvozbbg"  
}

我正在尝试计算金额总和：

db.balance.aggregate([{$group:{_id:"$createdBy",total:{ $sum: "$amount"}}}])

预期输出：

{createdBy:AGuT6zQtSojvozbbg , total:20}

实际输出：

{ "_id" : "AGuT6zQtSojvozbbg", "total" : 0 }

在HTML中，我可以通过实现

<span style="background-color:red">ketan</span>

但是在本机中如何实现此功能，以便仅将颜色应用于文本。