Can someone please help me?
I declared a function stateChange in 3rd code section and it seems to be working fine.
Does I need to use useEffect or not.
Could it be optimized with useEffect
import React from 'react'
import Card from './Card'
import { cards } from './cards'
const InitialCards = () => {
return (
<section className="container">
<Card cards={cards} />
</section>
)
}
// title is used as a key so it should be unique and images can be any anything
export const cards = [
{
title: 'Tropical rainforest',
image: '/images/landscape-tropical-green-forest.jpg'
},
{
title: 'Cat Wallpaper',
image: '/images/4-47096_cat-wallpaper-background-data-src-free-download-cat.jpg'
},
{
title: 'Maple leaves',
image: '/images/beautiful-autumn-leaves-autumn-red-background-sunny-daylight-horizontal.jpg'
},
{
title: 'Lake View',
image: '/images/beautiful-shot-small-lake-with-wooden-rowboat-focus-breathtaking-clouds-sky.jpg'
},
{
title: 'Dark View',
image: '/images/old-black-background-grunge-texture-dark-wallpaper-blackboard-chalkboard-concrete.jpg'
}
]
import React, { useEffect } from 'react'
function Card({ cards }) {
const stateChange = (title) => {
const panels = document.querySelectorAll('.panel')
panels.forEach(panel => {
panel.classList.remove('active')
if (panel.innerText === title) {
panel.classList.add('active')
}
})
}
// useEffect(() => {
// stateChange()
// }, [])
return (
<>
{cards.map(card => {
const { title, image } = card
return (
<div className='panel' key={title}
style={{ backgroundImage: `url(${image})` }} onClick={() => stateChange(title)}>
<h3>{title}</h3>
</div>
)
})}
</>
)
}
export default Card
/*index.css*/
body {
display: flex;
align-items: center;
padding: 3vh;
justify-content: center;
}
.container {
width: 90vw;
display: flex;
}
.panel {
height: 90vh;
border-radius: 30px;
flex: 0.5;
margin: auto 10px;
position: relative;
transition: flex ease 2s;
background-size: auto 100%;
background-repeat: no-repeat;
background-position: center;
cursor: pointer;
}
.panel.active {
flex: 5;
}
.panel.active h3 {
opacity: 1;
}
h3 {
position: absolute;
bottom: 20px;
left: 10px;
color: white;
background-color: black;
opacity: 0;
transition: opacity 3s;
}
@media (max-width:700px) {
.container {
width: 100vw;
}
.panel:nth-of-type(4),
.panel:nth-of-type(5),
.panel:nth-of-type(6) {
display: none;
}
}