How to use useEffect and for loop to generate multiple JSX elements

I want to use useEffect and for-loop to generate multiple JSX elements but nothing is rendered in this case. warning code: “React Hook useEffect has a missing dependency: ‘renderInfoCard’. Either …

How to better setup fetch with useEffect?

Im learning JS and React and I came to the code example below and some parts I don’t understand properly. The second .then is inside useUffect is this ok, or it’s better to be in getData func? Also in …

How to generate data for the child component?

Here is the parent code: import {Col,Container,Row} from ‘react-bootstrap’; import {useEffect,useState} from “react”; import AppConfig from ‘../../utils/AppConfig’; import BB from ‘./BB’; …

React store problem using easy peasy, unexpcted rendering mess up the model in store

When I call an action, first time data is loaded perfectly fine. Component re-renders again and messes up the state. Default State menu_detail: { error: null, menu_id: 0, detail: {} } …

Sibling component not re-rerendering on state change (using useEffect, useState and Context)

In my Main.js I create a first global state with a username and a list of users I’m following. Then, both the Wall component and FollowingSidebar render the list of follows and their messages (plus …

dispatching actions on every render

I am dispatching action addProducts on every mount of the ProductList component whereas i want to dispatch the action one timeusing useEffect hook and store the data in the redux and then use it. …

setInterval keeps on running after clearInterval called

This is a snippet of the code: var interval3 = null; React.useEffect(() => { if(running) { if(interval3) clearInterval(interval3); interval3 = setInterval(() => { …

Converting componentDidMount into useEffect

I am trying to learn React hooks, and trying to convert existing codebase to use hooks, but I am confused. Is it normal to set state inside useEffect? Would I be causing the dreaded infinite loop if I …

Do I need to use useEffect to rerender a component?

I had an issue getting a component to update when it´s props changed. I got it to work using useEffect, but am unsure if it is the correct way to solve my problem. This is my code: import * as React …

Behaviour of a function in useEffect when different browser tab is active

I have a weird issue. I’ve created a function that aims to reset the Linearprogress element after 60 seconds. Then, I have a render of linear progress element like this : Now the weird part : when Im looking at my app all looks normal, after 60 seconds the bar resets to start and that repeats on. However, when I change the active tab in the browser just after resetting and come back in 55 seconds ( the bar should be near the end ) – the bar is in the middle. It looks like the useeffect doesnt re-execute the