thunk

why my redux state not updating

由 自闭症网瘾萝莉.ら 提交于 2019-12-12 02:09:25
问题 state not updating.when action is dispatched the state should update to isAuthenticated to true..but the state not updating..redux returning the initial state not the updated state. export function setCurrentUser(user) { console.log(user); return { type: "SET_CURRENT_USER", user }; } ... export function login(userData) { return dispatch => { return axios.post('/user/auth',userData).then((res) => { const { status, sessionId, username, error} = res.data; if(status === "success"){ dispatch

Redux thunk fetch return undefined

由 跟風遠走 提交于 2019-12-11 05:43:29
问题 I'm new with Redux Thunk and I'm having problems with dispatch an action after fetching async call by click on button component. actions.js import fetch from 'isomorphic-fetch' export const getPosts = (json) => { return { type: constant.GET_POSTS, payload: { data: json } } } export const loadPosts () => { return (dispatch) => { return fetch('https://jsonplaceholder.typicode.com/posts') .then(res => { res.json() }).then(json => { dispatch(getPosts(json)) }) } } button.js class Button extends

Mac gcc non-virtual thunk error

由 大城市里の小女人 提交于 2019-12-10 23:39:13
问题 I'm getting these non-virtual thunk errors only in the Deployment build of my app. It uses a private framework called Lgi. Building on 10.5.8 using XCode 3.1.4 (latest for leopard?) The error looks like this: Ld /Users/matthew/Code/Scribe-Branches/v2.00/build/Development/Scribe.app/Contents/MacOS/Scribe normal i386 cd /Users/matthew/Code/Scribe-Branches/v2.00 /Developer/usr/bin/g++-4.0 -arch i386 -L/Users/matthew/Code/Scribe-Branches/v2.00/build/Development -F/Users/matthew/Code/Scribe

基于 React.js + Redux + Bootstrap 的 Ruby China 示例

由 拈花ヽ惹草 提交于 2019-12-09 10:08:12
最近在学习前端的各大流行框架, 主要学习了 Vue.js 和 React.js, 前段时间用 Vue.js + uikit 实现了 V2EX 的克隆版本, 最近又用 React.js + redux + bootstrap 实现了 RubyChina 的克隆版本, 两个项目都支持响应式布局. 不得不说这是学习新知识的一个有效途径. 这两个项目都比较合适学习 Vue.js 和 React.js 的朋友参考. Vue.js + V2EX 项目 代码地址: <https://github.com/liuzhenangel/v2ex_frontend> Demo: <http://v2ex.liuzhen.me> 关于这个项目的一些介绍和学习资料可以访问 [这里](https://github.com/liuzhenangel/v2ex_frontend) 查看 . 这篇文章主要介绍 React.js 的相关知识. React.js + RubyChina 项目 代码地址: <https://github.com/liuzhenangel/react-ruby-china> Demo: <http://ruby-china.liuzhen.me> 项目介绍 react-ruby-china 项目是一个利用 react, react-dom, react-redux, react

ESLint Airbnb ES6 and Redux Async Action Unexpected block statement surrounding arrow body

由 霸气de小男生 提交于 2019-12-07 15:38:06
问题 What am I doing wrong? I have like three other async actions that have the same issue and can't fix it. 回答1: When you take a look at the Arrow Function Documentation (param1, param2, …, paramN) => expression // equivalent to: => { return expression; } the "Unexpected block statement surrounding arrow body" just means that you don't need a { return expression; } block for your arrow function here, as the arrow function does return by default. const getOptions = () => (dispatch, getState) => {}

Reading Explorer.exe's Thunk Data

由 和自甴很熟 提交于 2019-12-06 13:01:13
问题 I'm trying to do a little IAT hooking in explorer.exe. Specs: Windows 7 x64, Visual C++. I've made it to a point where I am capable of reading thunk data from any executable of my choosing except for C:\Windows\Explorer.exe. When I run my program against that I receive an access violation in reading memory from that executable. However, when I run this against C:\Windows\system32\Explorer.exe and C:\Windows\sysWOW64\Explorer.exe I don't have any problems. Why is this? Is C:\Windows\Explorer

Is everything in Haskell stored in thunks, even simple values?

由 馋奶兔 提交于 2019-12-03 08:08:51
问题 What do the thunks for the following value/expression/function look like in the Haskell heap? val = 5 -- is `val` a pointer to a box containing 5? add x y = x + y result = add 2 val main = print $ result Would be nice to have a picture of how these are represented in Haskell, given its lazy evaluation mode. 回答1: Official answer It's none of your business. Strictly implementation detail of your compiler. Short answer Yes. Longer answer To the Haskell program itself, the answer is always yes,

Understanding the different behavior of thunks when GHCi let bindings are involved

由 我的梦境 提交于 2019-12-03 05:26:11
问题 I've been playing with some examples from Simon Marlow's book about parallel and concurrent programming in Haskell and stumbled across an interesting behavior that I don't really understand. This is really about me trying to understand some of the inner workings of GHC. Let's say I do the following in the REPL: λ» let x = 1 + 2 :: Int λ» let z = (x,x) λ» :sprint x x = _ λ» :sprint z z = (_,_) λ» seq x () () λ» :sprint z z = (3,3) Ok, this is pretty much what I expected except that z gets

Is everything in Haskell stored in thunks, even simple values?

由 烈酒焚心 提交于 2019-12-02 21:41:35
What do the thunks for the following value/expression/function look like in the Haskell heap? val = 5 -- is `val` a pointer to a box containing 5? add x y = x + y result = add 2 val main = print $ result Would be nice to have a picture of how these are represented in Haskell, given its lazy evaluation mode. Official answer It's none of your business. Strictly implementation detail of your compiler. Short answer Yes. Longer answer To the Haskell program itself, the answer is always yes, but the compiler can and will do things differently if it finds out that it can get away with it, for

Using v-table thunks to chain procedure calls

由 孤人 提交于 2019-12-02 08:56:28
问题 I was reading some articles on net regarding Vtable thunks and I read somewhere that thunks can be used to hook /chain procedures calls. Is it achievable? Does anyone know how that works , also I am not able to find good resource explaining thunks. Any suggestions for that? 回答1: Implementing a raw thunk in the style of v-table thunks is a last resort. Whatever you need to accomplish can most likely be achieved with a wrapper function, and it will be much less painful. In general, a thunk does
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