redux

问题 im following this tutorial from redux form official page http://redux-form.com/5.3.1/#/getting-started?_k=8q7qyo there are two issue im facing 1: how to get form data in handleSubmit function or in any other function. so that i can process form data according to my needs. 2: each time when i submit form my page get refresh. i dont want to refresh my page import React, {Component} from 'react'; import {reduxForm} from 'redux-form'; class ContactForm extends Component { render() { const {fields

问题 The below super simple code is not working as expected. I am using react and injecting/providing props via redux store. what my understanding is store inject props in the React component. To make this component work why I need both line1 and line 2 ? import React from 'react'; import './sytles.css'; import { fetchUsers } from "./actions/userAction" import { connect } from "react-redux" @connect((store) => { return { signup: store.users, }; }) class Signup extends React.Component { handleClick

问题 New to React.js, I am having hard time using the spread operator in my reducers to update my state that has an 2D-array property. For instance initial state is so: let initialState = { grid: new Array(5).fill(new Array(5).fill(0)), player: { coords: [2,3], health: 100 } } After binding the action, lets say the payload goes to PRESS_LEFT case PRESS_LEFT: { let oldCoords = [state.player.coords[0], state.player.coords[1]]; let newCoords = [state.player.coords[0], state.player.coords[1]-1]; let

问题 why do we add this in static.json file at root => { "root": "dist/", "routes": { "/**": "index.html" } } 回答1: static.json file is used with heroku-buildpack-static during deployment with heroku for handling static sites and single page web apps. A number of options can be configured in static.json . Amongst them Root allows you to specify a different asset root for the directory of your application. By default it is public_html/ Custom Routes You can define custom routes that combine to a

问题 I started working with Vuex 2 weeks ago and I realized that Vuex is very good to handle the state of the app. But, it is difficult to handle the error of API calls. When I get data from the server, I dispatch an action. When data is successfully returned, of course, everything is fine. But when an error happens, I change state, I don't know how to detect it through the state from Vuejs components to notify to the user. Could anyone give me some advice? 回答1: I typically have the following

问题 The more I read about this subject it seems like going down a rabbit hole. This is a new Trading application which receives realtime data through web sockets which is based on a request-response paradigm. There are three separate SPA's in which apart from initial load, every user action triggers a call to the dataStore with a new MDXQuery. So in turn I would need to make fresh subscriptions on a componentDidMount() as well as in the respective ActionCreators.I would like to streamline the

问题 I have a redux form where I included some radio buttons: <label htmlFor="passType">Pass type</label> {passType.touched && passType.error && <span className="error">{passType.error}</span>} <br /> <input type="radio" {...passType} id="passType" value="0" checked={passType.value === '0'} /> VIP<br /> <input {...passType} type="radio" id="passType" value="1" checked={passType.value === '1'} /> Regular<br /> All well and good, but now the pass types must be dynamically generated from state:

问题 I would like to use Redux for React Native. Currently I have no set data management, so the index.ios.js has the following: renderScene(route, navigator){ this._navigator = navigator return ( <route.component navigator={navigator} {...route.passProps}/> ) } <Navigator configureScene={this.configureScene} initialRoute={{name: 'Login', component: Login}} renderScene={(route, navigator) => this.renderScene(route, navigator)} style={styles.container} navigationBar={ <Navigator.NavigationBar style

问题 I would like to use Redux for React Native. Currently I have no set data management, so the index.ios.js has the following: renderScene(route, navigator){ this._navigator = navigator return ( <route.component navigator={navigator} {...route.passProps}/> ) } <Navigator configureScene={this.configureScene} initialRoute={{name: 'Login', component: Login}} renderScene={(route, navigator) => this.renderScene(route, navigator)} style={styles.container} navigationBar={ <Navigator.NavigationBar style

问题 I would like to use Redux for React Native. Currently I have no set data management, so the index.ios.js has the following: renderScene(route, navigator){ this._navigator = navigator return ( <route.component navigator={navigator} {...route.passProps}/> ) } <Navigator configureScene={this.configureScene} initialRoute={{name: 'Login', component: Login}} renderScene={(route, navigator) => this.renderScene(route, navigator)} style={styles.container} navigationBar={ <Navigator.NavigationBar style