Questions tagged [setstate]
For inquiries concerning the [setstate] function and handling component/widget state management in both [reactjs] and [flutter], feel free to seek assistance.
After reading this informative post, I learned that React does not automatically batch state updates when dealing with non-react events like setTimeout and Promise calls. Unlike react-based events such as onClick events, which are batched by react to reduc ...
Imagine I have an object structured like this: person : { name : "Test", surname : "Test", age : 40, salary : 5000 currency : "dollar", currency_sign : "$", . . . } I am looking to achieve the following I will make ...
Hey everyone, I've been struggling with a technical issue for the past few days and would really appreciate any hints or solutions. The problem lies in creating a table using the material-table library. Specifically, I need to extract the docID and docNR v ...
/*I have successfully fetched data and set it to state, however, when attempting to generate an array of jsx items for display, the array appears empty and nothing is rendering. I tried hardcoding and it worked. I also logged the data which showed that th ...
When I try setting a value to the useState hook upon a button press, it doesn't seem to work properly. const [text, setText] = useState("") const demo = () => { setText("Hello world") alert(text) } <TouchableOpacity onPress={demo}> & ...
Currently, I am facing a situation where I need to retrieve two different values (item.id and item.name) to set the State when selecting an item from my dropdown menu. Right now, I am only able to do this for one value (item.id). Is it possible to achieve ...
How can I update the state for 'selectedValues' in a React component called CheckboxWindow when the onChange() function is triggered by clicking on a checkbox? export const CheckboxWindow: React.FC<Props> = props => { const [selected ...
I am new to the world of ReactJS and I have been exploring the concepts of state and setState(). While trying to implement a name change using setState(), I found myself wondering where exactly in my code should I invoke the setState() method: Should I c ...
My apologies for the repeated question, but I have not been able to resolve my code issue despite going through all previous answers. In my code, I am attempting to read the URL parameter using queryString and update the state with it using setState(), al ...
Recently, I decided to dive into Typescript within my React App and encountered an error that has left me stumped. I'm wondering if it's possible to access a specific key in an exported type and modify its value? Here is how I've exported my type: export ...
I'm encountering a TypeScript error while working with React that's leaving me puzzled: <html>TS2339: Property 'subEnd' does not exist on type 'SetStateAction<User>'.<br/>Property 'subEnd' does not exist on type '(prevState: User) ...
I am attempting to update the state asynchronously when my fetchWeather function is executed from my WeatherProvider component, which calls an axios request to a weather API. The result of this request should be mapped to a forecast variable within the fet ...
I have a frontend code snippet that deals with authentication: AuthContext.js: const { createContext, useState, useContext } = require("react"); const AuthContext = createContext(); export function useAuth() { return useContext(AuthContext); } export ...
import React from "react"; import { UserContext } from "./../contexts"; import { removeStoredAuthData, storedAuthIsValid, storeNewAuthData, } from "./../utils/auth"; import { getUserInfos } from "./../api/userAuthen ...
My goal is to update the state of an object using a function called updateDatas. This function takes the arguments key, possibly subKey, and value. interface Datas { code: number; item1: Item; } interface Item { id: number; name: string; } const ...
` After retrieving an array of points with city and state information, I attempted to convert these points to latitude and longitude by making a fetch call. However, upon trying to update the state of the newly generated array, I found that it remained ...
Why am I receiving an error stating that this.setState is not a function? I'm having trouble understanding why my code isn't working as expected. import React from 'react'; import axios from 'axios' import { StyleSheet, Text, View , Image} from 'react-na ...
Below is a snippet of my code. I am attempting to update the state of data (which is contained within datasets) to a value defined by the user. constructor(props) { super(props); this.state={ value:'', set:[], coun ...
In my code, I am using a useEffect hook to update the state with setState. However, I'm encountering some unusual and inconsistent behavior with the previous parameter: useEffect(() => { setCurrentPicturesObject((existing) => { ...
My component is designed to display a list of todos like: const todosData = [ { id: 1, text: "Take out the trash", completed: true }, { id: 2, text: "Grocery shopping", completed: false }, ]; ...
I have an array of integers ranging from 0 to 6 as my input. My goal is to create an object that gives the count of each number in the array. edition = [6, 6, 6, 1, 1, 2]; const [groupedEdition, setGroupedEdition] = useState([{"0": 0, "1&quo ...
I am currently working on a project where I have an array of objects that I need to render as buttons. The requirement is that when a user clicks on a button, only that specific button should change its background color, similar to a toggle switch. Event ...