redux

问题 I'm getting this error with React Native, not ReactJS so all the solutions/workarounds with webpack or browserify wont help. Full error: You are currently using minified code outside of NODE_ENV=== "production". This means that you are running a slower development build of Redux. You can use ... bla bla bla ( workarounds for ReactJS ) I'm currently running this config : "expo": "^23.0.0", "react": "16.0.0", "react-native": "https://github.com/expo/react-native/archive/sdk-23.0.0.tar.gz",

问题 I'm experiencing following unwanted behaviour in Redux (React/ Redux + redux-thunk): I'm triggering an event (click) wich lets an action fire and dispatch some additional data as objects in an array. When I'm clicking the first time the action dispatches once with one object in the array (result 1: one new object) - and that's fine. But now the unwanted thing happens: When I'm clicking the second time calling for new additional data the action dispatches twice - first time with the formerly

问题 I'm experiencing following unwanted behaviour in Redux (React/ Redux + redux-thunk): I'm triggering an event (click) wich lets an action fire and dispatch some additional data as objects in an array. When I'm clicking the first time the action dispatches once with one object in the array (result 1: one new object) - and that's fine. But now the unwanted thing happens: When I'm clicking the second time calling for new additional data the action dispatches twice - first time with the formerly

问题 Is there a way to do a leading debounce? The example on the recipes only shows a trailing debounce. So below is trailing debounce example where we delay the logic fro 500ms: import { call, cancel, fork, take, delay } from 'redux-saga/effects' function* handleInput(input) { // debounce by 500ms yield delay(500) ... } function* watchInput() { let task while (true) { const { input } = yield take('INPUT_CHANGED') if (task) { yield cancel(task) } task = yield fork(handleInput, input) } } where as

问题 Is there a way to do a leading debounce? The example on the recipes only shows a trailing debounce. So below is trailing debounce example where we delay the logic fro 500ms: import { call, cancel, fork, take, delay } from 'redux-saga/effects' function* handleInput(input) { // debounce by 500ms yield delay(500) ... } function* watchInput() { let task while (true) { const { input } = yield take('INPUT_CHANGED') if (task) { yield cancel(task) } task = yield fork(handleInput, input) } } where as

问题 Is there a way to do a leading debounce? The example on the recipes only shows a trailing debounce. So below is trailing debounce example where we delay the logic fro 500ms: import { call, cancel, fork, take, delay } from 'redux-saga/effects' function* handleInput(input) { // debounce by 500ms yield delay(500) ... } function* watchInput() { let task while (true) { const { input } = yield take('INPUT_CHANGED') if (task) { yield cancel(task) } task = yield fork(handleInput, input) } } where as

问题 I am writing a react-redux app where I am making some service calls in my middlewares using superagent. I have found a very strange behavior where the first call to my search api always gets terminated. I have tried waiting 10-30 seconds before making the first call, and logging every step along the process and I cannot seem to pinpoint why this is happening. My action creator looks like export function getSearchResults(searchQuery) { return { query: searchQuery, type: actions.GO_TO_SEARCH

问题 I have a normal selector which is just used to get part of the state: export const getAllPosts = state => { return state.posts; }; If I use the reselect to wrap the selector: import { createSelector } from 'reselect'; export const allPosts = createSelector( getAllPosts, (posts) => posts ); Does it make any sense such as improving performance ? In my opinion, the wrapper is unnecessary. 回答1: No, it does not make sense to create a memoized selector just to get part of the state tree. The reason

问题 I am working in React-redux and creating a number type field. The event.target.value returns a string, since it is number type editor it must return value as number so I parse the value to number. The problem comes when I try to enter 4.5 . Firstly, when I type 4 it will get parsed into 4 (sting to number). But when the . entered the number 4. get parse into 4 , so I just failed to enter the floating point values. let onChangeText = (value)=> { fieldProps.onChange(parseFloat(value)); } If I

问题 I have several routes that use the same controller: <Route component={Search} path='/accommodation(/:state)(/:region)(/:area)' /> and when the route is changed I call the api function from within the component: componentWillReceiveProps = (nextProps) => { if (this.props.params != nextProps.params) { loadSearch(nextProps.params); } } which is an action as follows: export function loadSearch (params) { return (dispatch) => { return dispatch( loadDestination(params) ).then(() => { return