flux

Structuring the store of a localized react / redux app

由 泄露秘密 提交于 2020-01-23 11:26:55
问题 I am having a hard time structure my data in a localized blogging app. My app is displaying posts, with embedded pictures (one-to-many), in three languages (English, French and Russian). The visitor can choose its locale. The editors can edit the localized versions of their posts in the three languages. For the moment, the structure of my store looks like this: { articles: { en: { 1: { id: 1, title: "my first title", body: "my first body", picture_ids: [1, 2, 3]}, 2: { id: 2, title: "my

Redux的工作流程

由 若如初见. 提交于 2020-01-22 17:02:42
Redux = Reducer + Flux。react在2013年开源的时候，facebook的团队除了放出react这个框架之外，他还放出了一个框架，叫做flux。flux这个框架实际上就是官方推出的最原始的辅助react使用的数据层框架。当然在他推出之后，业界的人在使用之后发现flux实际上有一些缺点。比如说他的公共存储区域store这个部分可以有很多个store所组成。这样的话，数据存储的时候，就可能存在一个数据依赖的问题。总之他不是特别的好用，于是有人，就把flux做了一个升级，升级成了我们目前使用的redux。在redux里面除了借鉴flux以前很多的设计理念之外呢，他又引入了一个reducer的概念。因为flux这个框架实际上目前已经有些过时了。所以就没必要去在意他的一些细节点了。 看上图，react components指的是页面上的每个组件。store指的是存储数据的公共区域。那么action creators 和 reduces又是什么？我们可以把react components当作是一个借书的用户。那么action creators就是我们要对管理说的要借什么书的那句话。store是图书馆的管理员，他接收到了要借什么书的一个信号，但是他没有办法知道图书馆的所有存储情况。可是他有一个记录本叫reducer，他通过查看记录本上的信息，知道这个书在哪

类 Flux 状态管理的官方实现

由 我是研究僧i 提交于 2020-01-22 04:08:56
由于状态零散地分布在许多组件和组件之间的交互中，大型应用复杂度也经常逐渐增长。为了解决这个问题，Vue 提供 vuex ：我们有受到 Elm 启发的状态管理库。vuex 甚至集成到 vue-devtools ，无需配置即可进行 时光旅行调试 (time travel debugging) 。 经常被忽略的是，Vue 应用中原始 数据 对象的实际来源 - 当访问数据对象时，一个 Vue 实例只是简单的代理访问。所以，如果你有一处需要被多个实例间共享的状态，可以简单地通过维护一份数据来实现共享： const sourceOfTruth = {} const vmA = new Vue({ data: sourceOfTruth }) const vmB = new Vue({ data: sourceOfTruth }) 现在当 sourceOfTruth 发生变化， vmA 和 vmB 都将自动的更新引用它们的视图。子组件们的每个实例也会通过 this.$root.$data 去访问。现在我们有了唯一的数据来源，但是，调试将会变为噩梦。任何时间，我们应用中的任何部分， 在任何数据改变后，都不会留下变更过的记录。 为了解决这个问题，我们采用一个简单的 store 模式 ： var store = { debug: true, state: { message: 'Hello!' },

Call state value of another script with redux

由 房东的猫 提交于 2020-01-22 02:31:11
问题 I want to call a speed value of Screen2.js to Screen1.js . I'm trying with redux, but I'm not very familiar with it. I tried to create a store and return my speed value, and set my speed Screen1 for Screen2 speed. Screen2.js import React, { Component } from 'react'; import { StyleSheet, View, Text } from 'react-native'; import Screen1 from './Screen1'; import { createStore } from 'redux'; import { Provider } from 'react-redux' import { connect } from 'react-redux'; function mapStateToProps

React: How to read from the DOM after mount?

由 柔情痞子 提交于 2020-01-14 15:50:00
问题 In my React component, I need to read data from the DOM when it's available for later parts of my application to work. I need to persist the data into state, as well as send it through Flux by dispatching an action. Is there a best practice for doing this? To be more specific, I need the data from the DOM in at least two cases: Visually immediate, as in the first thing the user sees should be "correct," which involves calculations based on data read from the DOM. Data used at a later time

React: How to read from the DOM after mount?

由 て烟熏妆下的殇ゞ 提交于 2020-01-14 15:47:10
问题 In my React component, I need to read data from the DOM when it's available for later parts of my application to work. I need to persist the data into state, as well as send it through Flux by dispatching an action. Is there a best practice for doing this? To be more specific, I need the data from the DOM in at least two cases: Visually immediate, as in the first thing the user sees should be "correct," which involves calculations based on data read from the DOM. Data used at a later time

Update redux state with an input

由 牧云@^-^@ 提交于 2020-01-13 08:21:05
问题 How can I update redux's state from a text input? I'm trying to do a very simple "Hello World" with a text input. When someone types into the text input, it should update my store's "searchTerm" value. I can't figure out these things: 1. How can I get and pass the input's value into it's "onChange" handler? 2. The "search" action seems to be called correctly, but my reducer function is never used (no console.log). SearchForm.js (component) import React, {Component, PropTypes} from 'react';

Dispatching cascading/dependent async requests in Flux/React

由 ぐ巨炮叔叔 提交于 2020-01-13 05:13:13
问题 I know this question has been asked more times in different flavours, but I didn’t find the "right" answer yet (maybe there just isn't one), so I’m looking for the "most Flux" one. Simple example: two components - LoginForm and Information user has to provide his/hers login information, submit the form and only after that he/she has right to "ask" for the information (this should be done automatically after login) Project structure along these lines: + actions |-- LoginAction |-- InfoAction +

WebFlux系列(五)WebClient基本应用

由 六月ゝ 毕业季﹏ 提交于 2020-01-10 07:37:08
#Java#Spring#WebFlux#WebClient#Reactor# WebClient如何调用远程接口 视频讲解: https://www.bilibili.com/video/av82532764/ WebfluxServerApplication.java package com.example.webfluxserver; import lombok.extern.log4j.Log4j2; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.http.MediaType; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RestController; import reactor.core.publisher.Flux; import java.time.Duration; @Log4j2 @SpringBootApplication public class

http请求类库（okHttpClient、restTemplate、flux-webclient）

由 六眼飞鱼酱① 提交于 2020-01-09 20:36:56
【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> public final class HttpTest { public static OkHttpClient httpClient = new OkHttpClient.Builder() .readTimeout(2, TimeUnit.SECONDS) .writeTimeout(2, TimeUnit.SECONDS) .connectTimeout(3, TimeUnit.SECONDS) .build(); private Map<String, Object> map = new ConcurrentHashMap<String, Object>(); private static String URL_FACTOR = FileUtil.readString(new File("D:\\WorkSpace\\url.txt"), "utf-8"); private final static String AUTH_VALULE = FileUtil.readString(new File("D:\\WorkSpace\\auth.txt"), "utf-8"); private final static List<String> IMEIS = Files.linesOf(new File(
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