Questions tagged [redux-reducers]
195 questions
2
votes
0 answers
Redux Toolkit Reducers and ExtraReducers : Calling a reducer that has a prepare callback from within an extra reducer doesn't call reducer
I am building a notification system using Redux Toolkit and I am running into an issue.
Here I want to trigger the showNotification when certain actions/reducers in other slices are called. So I have added extraReducer to my NotificationSlice. When…
2
votes
1 answer
How to call other reducers in createSlice to change state?
I use redux to createSlice, here is my createSlice looks like:
export default createSlice({
name:'testSlice',
initialState,
reducers:{
setRecords: setRecordsReducer,
setObjects: setObjectsReducer,
setBoth:....
…
spspli
- 3,128
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- 75
2
votes
1 answer
If i have 100 reducers in my react app will all reducers get called when an action is dispatched?
If so will this lead to a performance issue ?
Secondly
Is there a way to specifically call a reducer without invoking all 100 reducers ?
Munsif Ali Misri
- 75
- 10
2
votes
2 answers
JavaScript strange behavour on object assignment
I am currently writing a Redux reducer and I am facing an issue with the state update.
The code bellow is supposed to toggle an open state. The problem is that the resulting state does not return the same value depending on how one accesses it.
case…
Robert
- 21
- 2
2
votes
1 answer
Using {...state} instead of state in persistReducer in redux
So I was using redux-persist in my react-native app to persist the state and everything is working fine.
For the reducer, I was using switch-case to check for different action-types, and for the default, I was returning the state.
initialState = {
…
Irfan wani
- 4,084
- 2
- 19
- 34
2
votes
2 answers
How to pass in the state to the dispatch action if using useState instead of this.state in react?
I am a beginner starting out in react and having difficulties in state management while working with react-redux and useState.
In the below code I am basically following a tutorial which passes in the this.state to the dispatch action createProject…
nikkbh
- 77
- 5
2
votes
1 answer
React createSlice's extraReducers's state access
i have the following code:
import { createSlice, createAsyncThunk } from '@reduxjs/toolkit';
import { client } from '../../api/client';
const initialState = {
logBook: [],
status: 'idle',
error: null
};
export const logNewEntry =…
Han
- 63
- 11
2
votes
2 answers
How to implement an exhaustive switch statement inside a Redux reducer function using Typescript? How to handle Redux's internal @@redux actions
I've tried to find a definitive answer do this, but haven't found one yet.
There a question here on SO that answers how to implement an exhaustive switch statement:
How do I check that a switch block is exhaustive in TypeScript?
And the answer…
cbdeveloper
- 27,898
- 37
- 155
- 336
2
votes
1 answer
React. get state from another reducer
Hi how can i get the value from another reducer?
const indexReducer = (state = initialState, action) => {
switch (action.type) {
case CALC_BET_AMOUNT:
function calcBetAmount(value) {
switch (value) {
case…
TilikWebDeloper
- 219
- 3
- 7
2
votes
0 answers
React reducers, state not updating immediately
i am working on createContext and reducers, with reducers i am updating state value, but it is not updating value at a time, i did console.log(user); in onSubmitSave(), but in console log i am not getting its updated state at a time, i can see it…
Nikul Panchal
- 1,542
- 3
- 35
- 58
2
votes
2 answers
(import from default export) Is the root reducer in Redux automatically called 'rootReducer'?
I'm going through many Redux-tutorials, and something that confuses me, is the fact, that when creating a Redux store with a combined reducer, there often is the reference to a name rootReducer as the root reducer, although it has never been…
Schelmuffsky
- 320
- 1
- 13
2
votes
1 answer
Better way for writing the reducers?
Is there a better way for writing the following code:
export const getItemsSuccess = (state, entity, payload) => {
const {count, rows} = payload
const clonedState = {...state}
clonedState[entity] = {...clonedState[entity], count, rows}
…
Yaniv Or
- 57
- 1
- 6
1
vote
1 answer
Why is Store.getState() returning 'any' type after using rootReducer with combinedReducers?
I am trying to use a root reducer to wrap my combined reducers in order to reset them on reset store action.
However, after using root reducer I am unable to directly access reducers by Store.getState().recuder1
Typescript does not give me any…
Ahmed Tariq
- 11
- 2
1
vote
2 answers
How to update one specific item in react redux?
Initial state of react redux.
reducer.js
cart {
id: 100,
name: "Pizza",
price: 550,
category: "Fasting",
time: "20-50 min",
restaurantId: "BH001",
quantity: 1,
photo: {
fileName: "",
fileType: "",
filePath: "",
},
…
Hailemelekot
- 29
- 5
1
vote
2 answers
Uncaught Error: "reducer" is a required argument, and must be a function or an object of functions that can be passed to
I have done hours of debugging and I am unable to find the solution.
import { combineReducers, applyMiddleware } from 'redux';
import thunk from 'redux-thunk';
import { configureStore } from '@redux.js/toolkit';
import { composeWithDevTools } from…
Aditya Pandey
- 13
- 2