I am learning redux. I am trying to learn redux by increment decrementing value. I have written a code. While I am dispatching INCREMENT_BY_VALUE it is showing NaN But INCREMENT, DECREMENT and RESET are working properly. Here is my code: const { createStore } = require("redux") const INCREMENT = ‘INCREMENT’ const DECREMENT = ‘DECREMENT’ const… Read More Why getting NaN on redux while adding a number
New to unit testing in general and especially in Redux, forgive the dumb question. I’m trying to test a simple reducer but can’t get to make it work. Reducer: import { ActionTypes } from "../constants/action-types"; const initialState = { products: [], }; export const productReducer = (state = initialState, { type, payload }) => {… Read More Testing Redux reducer fails to pass
I am putting together a web app using React/Redux/TypeScript and I don’t have a lot of experience with TypeScript. For the register user flow I having an issue in my code where I get the error: Expected 0 arguments, but got 1.ts(2554) when I try to pass the new user form data to the dispatch… Read More React/Redux Toolkit TypeScript issue with useDispatch `Expected 0 arguments, but got 1`
My goal is to update the animatedPhotoUrl value for chatId #1 (or the first object in the chats array. const chats = [ {"admin": "590", "animatedPhotoUrl": "", "chatId": "1"}, {"admin": "680", "animatedPhotoUrl": "", "chatId": "2"}, {"admin": "420", "animatedPhotoUrl": "", "chatId": "2"} ] However, when I console.log(chats) after I update in the reducer, I get the… Read More Update a specific objects values in an array of objects redux
requests = { name: url, name: url, …} I’ve tried to fetch every url and return { name: data, name: data, …} Code async function fetchMovies(url: string) { const data = await fetch(baseURL + url).then((r) => r.json()); return data.results; } export const getMovies = createAsyncThunk("movies/getMovies", async () => { const responses = Object.entries(requests).map(async ([key, value])… Read More TypeScript error with Object.fromEntries from fetched data
I’m working on a project that uses React redux typescript. The json file has "data_start": "2022-09-02" Is it possible to output it in this format ? (2022, 09, 02) I’m just learning programming so I don’t know how to do it >Solution : To get the desired output you could do the following: `(${data_start.replaceAll(‘-‘, ‘,… Read More Output of a part of data from a json array
can’t able to get data before rendering the page using useSelector after dispatch, my screen appears totally blank. I have used react and redux code: const UsersProfile = () => { const { id } = useParams(); const dispatch = useDispatch(); const { loading, data } = useSelector((state) => state.searchedUser); console.log(data); useEffect(() => { dispatch(searchedUser(id));… Read More how to render page after getting data using reducer [Uncaught TypeError: Cannot read properties of undefined]
I’m using Redux Toolkit and Redux Thunk. I successfully get my data asynchronously from a data source back into my component. Inside my component, I can observe the data coming with useSelector: const booksData = useSelector((state) => state.books); At this point, I would like to loop the books I’m getting and render my Book component… Read More React – updated state observed with useSelector() doesn't render new components
I am dispatching a function like the following: ChartHandlePureFunc.js: export function getBasic() { return async (dispatch) => { const response = await axios.get `https://financialmodelingprep.com/api/v3/historical-price-full/AAPL?apikey=*********`; dispatch(changeValue(response.data)); }; } ChartHandler.js: useEffect(() => { if (!req) { dispatch(getBasic()); } }, [req]); The above code works and the only thing I am trying to change is for getBasic to… Read More dispatch argument to returned function
I am trying to create a scraping application using redux toolkit for learning purposes but the scraping process fails whenever I pass custom parameters in the dispatch statement but works correctly on passing default parameters in the thunk My async thunk export const loadData = createAsyncThunk( "alldata/getdata", async ({ pageNo, language }, thunkAPI) => {… Read More error when passing parameters to an async redux action