import { useEffect, useState } from 'react' export type TTOrigin = { name: 'Name1' | 'Name2' url: string } export function App() { const [data, setData] = useState<TTOrigin[]>([]) useEffect(() => { fetch('https://swapi.dev/api/people/1/') .then((res) => res.json()) .then((json) => setData(json)) .catch((err) =>…
We use hooks like useState() instead of vanilla variables to store some state because we want the UI to update correctly. But isn't that just a solution to the overcomplicated state created by React? Could we've gotten by updating the…
I have a problem with updating my object in array. const [list, setList] = useState([]); const changeRecordIndex = list.findIndex((recordItem) => recordItem.id === recordID); I creat new array, copy object wich i need and then change one parametr of object. It's…
I am trying to fetch some data inside my component using useEffect hook and it is going in infinite loop. I am using this react tutorial page and this race conditions page for reference. Here is my code. function AppNew…
I have use two state variables to the filter colors search, resultantColors. The existing useEffect watches the search from the input and then sets the filtered array. But these effects runs on every input changes, how can i possibly refactor…
I am implementing a typewriter effect in my React app where I fetch a string from a URL and display it one character at a time. I expect the effect to start from the first character (index 0) and proceed…
I have this custom hook that used to fetch multiple requests import dashboardApi from '@api/dashboardApi' import { queryKeys } from '@constants/queryKeys' import { TOP_PROJECT_SORT } from '@models/projectCost' import { UseQueryOptions, UseQueryResult, useQuery } from '@tanstack/react-query' import { NotifyService } from…
Javascript binds variables to functions as they are created, which can cause 'dangling' out-of-date values to be used in useEffect. function Counter() { var [count, setCount] = useState(1); useEffect(() => { var timeout = setInterval(() => setCount(count => count+1), 1000);…
I'm storing an array of products added to a cart in a useState, each cart product has a quantity that can increase and decrease which all works fine. I then wanted to display the total number of all the product…
In my App, I am implementing Product Listing page which lists out the products on the listing page. I am looking to integrate some good practices based on this post - https://dev.to/vyan/using-async-functions-in-useeffect-best-practices-and-pitfalls-o75 but instead of let I am using ref…