Can anyone explain how to initialize a value via the useState hook from the store where user information is stored? After the first rendering it returns undefined const [lastName, setLastName] = useState<string|null>(store.user.lastName); I've used useEffect. But idk how to do…
Problem Summary: I have a parent component that has a state. I need this state changed from component d. The problem is this the child of a child of a child component, as pictured below: I just need an example…
Form import { useState, createContext } from "react"; import { data } from "../../../../data"; export const peopleContext = createContext(); export default function Form() { const [people, setPeople] = useState(data); const [name, setName] = useState(""); const handleSubmit = (e) => {…
I get an error every time I try to add a child element (div) of a button via cloneElement. This error is: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got:…
I have implemented two hooks. They are useWatch1 and useWatch2, respectively. The function of useWatch is to execute a cb function when the listening value changes. The user first clicks the ADD COUNT button a few times, and then the…
I have a steate with an array of objects: const [Value, setValue] = useState([ { value1: false, value2: false, value3: false }, { value1: false, value2: false, value3: false }, { value1: false, value2: false, value3: false } ]); And…
I am using React Query to practice fetching data and displaying them in the UI. I have a JSON server that serves an array of colors with an id and a label. I want to use pagination to display only…
I have a list with a large amount of items inside. In order to improve rendering performance I decided to memoize single items. This is the code I used: Parent component const randomList = []; for (let i = 0;…
import React from 'react' const desserts = [ { title: 'Chocolate Cake', description: 'Chocolate cake is a cake flavored with melted chocolate', calories: 500, }, { title: 'Chocolate Cake', description: 'Chocolate cake is a cake flavored with melted chocolate', calories:…
I'm encountering an issue with React refs that's a bit perplexing. I have a higher-order component (HOC) that dynamically generates child components based on a prop, and I'm trying to use refs to access those child components. However, it seems…