react-hooks Questions
7
Solved
I'm trying to understand how react-hook-form is working.
For this I created the following example:
import React from 'react';
import { useForm } from 'react-hook-form';
const InputForm = () => ...
Galateah asked 5/7, 2020 at 13:36
3
Solved
As I understand, useImperativeHandle helps parent component able to call function of its children component. You can see a simple example below
const Parent = () => {
const ref = useRef(null);
...
Gluey asked 24/8, 2022 at 7:1
5
I am trying to use useEffect() in my react hook to update the state when my props change. but there is a delay and the useEffect is only firing after I click again on an element in my hook. Im fair...
Caravel asked 4/9, 2019 at 12:46
20
Solved
I was trying the useEffect example something like below:
useEffect(async () => {
try {
const response = await fetch(`https://www.reddit.com/r/${subreddit}.json`);
const json = await response....
Consultative asked 16/11, 2018 at 6:7
4
Solved
Are there any benefits in using useMemo (e.g. for an intensive function call) instead of using a combination of useEffect and useState?
Here are two custom hooks that work exactly the same on first...
Spilt asked 7/5, 2019 at 18:58
4
Solved
From the react official documentation we know that "React relies on the order in which Hooks are called". So is there anything wrong with "reserving" a spot for a hook if I want...
Monkhood asked 3/6, 2021 at 19:3
5
I'm using TinyMCE-React and when I type my text in the TinyMCE Editor with an initial value, the cursor constantly returns at the start of the text...
import { Editor } from "@tinymce/tinymce...
Buffo asked 29/7, 2021 at 9:49
19
Solved
What is the correct way of updating state, in a nested object, in React with Hooks?
export Example = () => {
const [exampleState, setExampleState] = useState(
{masterField: {
fieldOne: "...
Exocarp asked 11/1, 2019 at 16:47
4
React state shouldn't be mutated directly. But, what if the state is an instance of a class that shall be mutable with its own methods. Is there another way than having to deep-clone and re-instant...
Defibrillator asked 5/2, 2021 at 11:54
55
Solved
I want to show some records in a table using React but I got this error:
Invalid hook call. Hooks can only be called inside of the body of a
function component. This could happen for one of the fo...
Drug asked 19/6, 2019 at 8:57
3
Solved
During the job interview, I was asked how to optimize a component in React.
So I answered with an example of using useCallback and useMemo hooks.
Because whenever a components re-renders, functions...
Coincidentally asked 2/9, 2021 at 12:8
7
Solved
I am getting the following eslint error after adding // eslint-disable-next-line react-hooks/exhaustive-deps in my code.
8:14 error Definition for rule 'react-hooks/exhaustive-deps' was not foun...
Coimbatore asked 6/1, 2020 at 12:6
20
Solved
As far as I understood I can use refs for a single element like this:
const { useRef, useState, useEffect } = React;
const App = () => {
const elRef = useRef();
const [elWidth, setEl...
Emilia asked 11/2, 2019 at 15:18
4
Can you use useState (and other react hooks?) with Server Side Rendering? Every time I am trying to run the code below I get the error
TypeError: Cannot read property 'useState' of null.
However,...
Thermomotor asked 29/8, 2022 at 2:9
11
Solved
Given the following component, when I press down on the age selector and change the value to 15, such that I render a form without the driver license field, I get the error:
Uncaught Error: Render...
Triennium asked 25/11, 2018 at 22:51
4
Solved
I am new to react and I find it sore in the eyes to look at the component flooded with lots of functions and variable initializations together with the UI. Is it possible to separate them?
Instead ...
Adolfo asked 26/9, 2021 at 7:57
4
Solved
Is it good practice to use IIFE in useEffect or I should declare async function and then call it?
useEffect(() => {
(async () => {
const response = await fetch(
"https://jsonplacehol...
Remorseful asked 15/3, 2022 at 10:16
3
Solved
Trying out Next.js but I'm struggling with the following. Just tried to install react-hook-mousetrap and imported it like I normally would:
import useMousetrap from "react-hook-mousetrap"...
Dylane asked 17/2, 2021 at 15:25
28
ReactSelect V2 and V3 seems to have several props like clearValue, resetValue and setValue. Whatever I'm trying, I'm not able to clear the selections programmatically. resetValue seems not to be ac...
Anabal asked 18/5, 2018 at 13:51
3
I'm trying to detect a click outside a set of components. I have multiple components called Block, inside an Artboard component. Inside each Block component, this is what I have as of now:
const h...
Resiniferous asked 30/10, 2019 at 13:5
3
In < Next 13 (or with appDir disabled), you could do:
const MyComponent = () => {
const router = useRouter();
const toggleStatic = () => {
if (router.query.static) {
router.push(rou...
Gio asked 13/4, 2023 at 15:55
1
Solved
I am learning React-testing library and struggling to understand how to validate error messages with onchange.
I even simplified it so the form is disabled until both inputs are valid.
It works per...
Swipe asked 21/3 at 10:33
16
Solved
I am creating a page for user to update personal data with React-Hook-Form.
Once paged is loaded, I use useEffect to fetch the user's current personal data and set them into default value of the fo...
Shoring asked 7/6, 2020 at 8:16
7
I have three pages that I want to share data between (these are the core of the web app) but I also have a bunch of blog pages that don't care about that data. Everywhere I've looked suggests putti...
Munster asked 6/11, 2020 at 21:24
3
Solved
Using React's useCallback hook is essentially just a wrapper around useMemo specialized for functions to avoid constantly creating new function instances within components' props. My question comes...
Phalanstery asked 16/4, 2020 at 16:20
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