redux

Where to store WebRTC streams when building React app with redux

由 与世无争的帅哥 提交于 2021-02-06 02:02:51
问题 I'm building a React.js application that interacts with the WebRTC apis to do audio/video calling. When a call is successfully established, an 'onaddstream' event is fired on the RTCPeerConnection instance, which contains the stream that I as a developer am supposed to connect to a video element to display the remote video to the user. Problem I'm having is understanding the best way to get the stream from the event to the React component for rendering. I have it successfully working by just

Where to store WebRTC streams when building React app with redux

由 我与影子孤独终老i 提交于 2021-02-06 02:01:50
问题 I'm building a React.js application that interacts with the WebRTC apis to do audio/video calling. When a call is successfully established, an 'onaddstream' event is fired on the RTCPeerConnection instance, which contains the stream that I as a developer am supposed to connect to a video element to display the remote video to the user. Problem I'm having is understanding the best way to get the stream from the event to the React component for rendering. I have it successfully working by just

Where to store WebRTC streams when building React app with redux

由 匆匆过客 提交于 2021-02-06 02:00:05
问题 I'm building a React.js application that interacts with the WebRTC apis to do audio/video calling. When a call is successfully established, an 'onaddstream' event is fired on the RTCPeerConnection instance, which contains the stream that I as a developer am supposed to connect to a video element to display the remote video to the user. Problem I'm having is understanding the best way to get the stream from the event to the React component for rendering. I have it successfully working by just

怎样使用React Context API [每日前端夜话0x26]

由 大兔子大兔子 提交于 2021-02-05 15:20:54
怎样使用React Context API [每日前端夜话0x26] 京程一灯 前端先锋 每日前端夜话0x26 每日前端夜话，陪你聊前端。 每天晚上18:00准时推送。 正文共：5730 字 1 图 预计阅读时间： 15 分钟 翻译：疯狂的技术宅 原文： https://www.toptal.com/react/react-context-api React Context API 【 https://reactjs.org/docs/context.html】现在已经成为一个实验性功能，但是只有在 React 16.3.0 【 https://reactjs.org/blog/2018/03/29/react-v-16-3.html】中才能用在生产中。本文将向你展示两个基本的 Web 商店应用程序，一个使用了 Context API 进行构建，另一个则不用。 这个新的API解决了一个严重的问题 ——prop drilling。 即使你不熟悉这个术语，如果你曾经用 React.js 做过开发，它可能就已经在你身上发生过了。 Prop drilling 是通过将数据传递到多个中间 React 组件层，将数据从组件A 获取到组件 Z 的过程。 组件将间接的接收props，而你必须确保一切正常。 我们先探讨如何在没有 React Context API 的情况下处理常见问题： App

Redux / RTK: create enhancer for one slice?

由 有些话、适合烂在心里 提交于 2021-02-05 11:57:16
问题 In one of the slices in my Redux / RTK store, all I need to to do to make the slice do its job is to create an entity adapter using createEntityAdapter() and export the setAll CRUD function. So far, so simple - thanks to RTK :-) However, when data for that slice comes in, I need to "augment" it (or "enhance" it, as Redux docs call it), i.e. add further information derived from data coming in, for example for formatted data displayde in the UI (contrived example). I created an enhancer for

Redux / RTK: create enhancer for one slice?

由 孤者浪人 提交于 2021-02-05 11:57:05
问题 In one of the slices in my Redux / RTK store, all I need to to do to make the slice do its job is to create an entity adapter using createEntityAdapter() and export the setAll CRUD function. So far, so simple - thanks to RTK :-) However, when data for that slice comes in, I need to "augment" it (or "enhance" it, as Redux docs call it), i.e. add further information derived from data coming in, for example for formatted data displayde in the UI (contrived example). I created an enhancer for

How do I deal with “Cannot read property 'map' of undefined” react/redux

由 牧云@^-^@ 提交于 2021-02-05 11:13:20
问题 Once again, I'm facing a very common mistake "Cannot read property 'map' of undefined" . I have a initial list of items (movies) loading properly inside a <ul><li></li></ul> . However after dispatching my action by clicking my button, the error happen. I can actually see the state updated in my redux dev tool (even with the error) but I also can see that the change doesn't impact my store state in my react dev tool. So here is my reducer : export default function moviesReducer(state = {items}

React: Raw HTML tag in content

由 ε祈祈猫儿з 提交于 2021-02-05 07:12:05
问题 I am working on a React app. There is some dynamic content which contents HTML tags. When I am showing that content on the page, it's showing with raw HTML tag. For say: const msg = "Some <strong>text</strong> here" I want to show like this on page Some text here If I use dangerousHtml then it's showing like this without bold "Some text here" Can anyone please help? Thanks in advance! 回答1: You can use the 'dangerouslySetInnerHTML' like: const msg = () => ({__html: 'Some <strong>text</strong>

Re-render same component on url change in react

由 半城伤御伤魂 提交于 2021-02-04 18:48:12
问题 I have a route which takes an id and renders the same component for every id, for example : <Route path='/:code' component={Card}/> Now the in the Link tag I pass in an id to the component.Now the Card component fetches additional detail based on the id passed. But the problem is it renders only for one id and is not updating if I click back and goto the next id. I searched and found out that componentsWillReceiveProps can be used but during recent versions of React it has been deprecated. So

How to use Redux-Thunk with Redux Toolkit's createSlice?

由 心已入冬 提交于 2021-02-04 12:08:26
问题 ==================== TLDR ========================== @markerikson (see accepted answer) kindly pointed towards a current solution and a future solution. EDIT: 15th Nov 2020: Link to Docs to use an Async Thunk in Slice RTK does support thunks in reducers using the thunk middleware (see answer). In 1.3.0 release ( currently alpha in Feb 2020 ), there is a helper method createAsyncThunk() createAsyncThunk that will provide some useful functionality (i.e. triggers 3 'extended' reducers dependent
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