redux

问题 I have search filter and sort inputs on the same component.I'm using reselect(selector package) where the data array is filtered and sorted. The mapStateToProps is updating the component on each search filter result.but the mapStateToProps is not updating the component after sorting the array. selectors/index.js import { createSelector } from 'reselect' const getListOfCategory = (state) => state.products.product const getSearchText = (state) => state.products.searchText const getSortValue =

问题 I an Angular 2 app using Redux (with @ngrx/store), I have modeled the store this way: { modelA: { ids: [1, 2], entities: { 1: { name: "name modelA 1" }, 2: { name: "name modelA 2" } } }, modelB: { ids: [5, 8], entities: { 5: { name: "name modelB 5" }, 8: { name: "name modelA 8" }, 9: { name: "name modelA 9" } } } } Basically, I have 2 types of objects: modelA and modelB. This is ok for now. But I can't find which is the best way to write a relationship between then, representing something

问题 I'm attempting to implement container components in React and Redux, and I'm unsure of what should take responsibility for lifecycle methods; containers or presentational components. One could argue that the lifecycle methods are presentational as they control DOM updates, but in that respect, aren't they also behavioural? Furthermore, all of the implementations of container components that I've seen thus far utilise the react-redux bindings, as do my own. Even if I keep the concerns clearly

问题 I am trying to understand how to manage redux state in my react-native app. In particular, I am trying to work out what happens when my app is minimized or the device is turned off. With this knowledge I can then work out best how to persist state, and prepare for any illegal states that may arise from the redux state being reset. Is it a fair assumption to make that if the redux state is reset, the entire app itself will restart (and therefore any initialization of the redux store will be

问题 I'm new to react-native and I'm trying for the first time to save the states of my app. In order to achieve this I've been suggested to use redux-persist. I expected to find more examples and topics about it in the web and I feel that my idea about how redux-persist works is not that limpid. I've followed the short guide in the github page but once I close and re-open my app I can't see saved states values but I see the default, initial states values. This is my app.js file: import React, {

问题 trying to figure out how to pull Redux store state into my component from Redux. I've got mapStateToProps and "connect" wired up. However, when I click my button in "App" component, this.props doesn't have my Redux values in it. // React and Redux Const const { Component } = React; const { render } = ReactDOM; const { Provider, connect } = ReactRedux; const {createStore, combineReducers, bindActionCreators } = Redux; function tweetReducer(state=[],action) { if(action.type === 'ADD_TWEET') {

问题 i am following the usage with React Redux tutorial. Something I really don't get is how to retrieve user input. They build a FilterLink container, whose mapDispatchToProps is const mapDispatchToProps = (dispatch, ownProps) => { return { onClick: () => { dispatch(setVisibilityFilter(ownProps.filter)) } } } So it injects its ownProps.filter to the connected presentational component. If we go and see how this container is construced const Footer = () => ( <p> Show:{" "} <FilterLink filter="SHOW

问题 I have a hard time understanding how to use redux together with react-router. index.js [...] // Map Redux state to component props function mapStateToProps(state) { return { cards: state.cards }; } // Connected Component: let ReduxApp = connect(mapStateToProps)(App); const routes = <Route component={ReduxApp}> <Route path="/" component={Start}></Route> <Route path="/show" component={Show}></Route> </Route>; ReactDOM.render( <Provider store={store}> <Router>{routes}</Router> </Provider>,

问题 Question: I need guidance on how to write a mechanism in Angular to set the "Look and Feel" of components globally in my application. Please note, I'm trying to learn @ngrx/platform and I thought this would be an interesting design constraint; however, I'm willing to let it go if it just doesn't make sense. Breakdown: I have an application in progress with many components. Each component in my application has currently 3 possible "look and feels(L&F)": Morning (sepia) Afternoon (white)

问题 I am developing a React Native application. I want to save the user id of the person who is logged in and then check if the user is logged in in every single component. So what I am looking for is something like cookies, sessions or global states. I have read that I should use Redux, but this seems to be overly complicated and it is very difficult to make it work with react-navigation . It forces me to define actions and reducers for almost everything although the only thing I want is to be