I am new to React and using React 18 in this app. My problem is that if I click one button inside a map function, it reflects information about all the items. I want only that item information to show for which I clicked the button. The isShown === true part in the CountryInfo.js file is what should reflect only one item; currently clicking the show button shows all item information on the UI (I don't want this to happen). How do I do this?
Visually, this is my UI,
If you see the image above, clicking any show button returns all countries information, which should not happen.
Below is my code:
App.js
import { useState, useEffect } from 'react';
import axios from "axios";
import CountryInfo from './components/CountryInfo';
const App = () => {
const [countries, setCountries] = useState([]);
const [searchCountry, setSearchCountry] = useState("");
const handleCountryChange = event => {
setSearchCountry(event.target.value);
}
const getAllCountriesData = () => {
axios.get("https://restcountries.com/v3.1/all")
.then(response => {
setCountries(response.data);
})
}
useEffect(() => {
getAllCountriesData();
}, []);
return (
<>
<h2>Data for countries</h2>
find countries:
<input value={searchCountry} onChange={handleCountryChange} />
{searchCountry.length > 0 && <CountryInfo countries={countries} searchCountry={searchCountry} />}
</>
)
}
export default App;
CountryInfo.js
import React from "react";
import { useState } from "react";
const CountryInfo = ({ countries, searchCountry }) => {
const [isShown, setIsShown] = useState(false);
let filteredList = countries.filter(country =>
country.name.common.toLowerCase().includes(searchCountry.toLowerCase()));
const handleClick = () => {
setIsShown(true);
}
if (filteredList.length > 10) {
return <div>Too many matches, specify another filter</div>
}
else {
return filteredList.map(country => {
return (
<>
<div key={country.name.common}>
{!isShown &&
<div>
{country.name.common}
<button type="submit" onClick={handleClick}>show</button>
</div>
}
{isShown &&
<div key={country.name.common}>
<h2>{country.name.common}</h2>
<p>
Capital: {country.capital}
{'\n'}
Area: {country.area}
</p>
Languages:
<ul>
{
Object.values(country.languages)
.map((language, index) => <li key={index}>{language}</li>)
}
</ul>
<img src={country.flags.png} alt={`${country.name.common} flag`} height={150} />
</div>
}
</div>
</>
)
})
}
}
export default CountryInfo;
