[英]React modal custom component not showing the correct data
我使用 react hooks 構建了這個模態組件。 但是,模態彈出時顯示的數據不正確(它始終顯示數組中最后一個元素的名稱屬性)。
//Modal.js
import ReactDOM from 'react-dom';
const Modal = ({ isShowing, hide, home_team }) => {return isShowing ? ReactDOM.createPortal(
<React.Fragment>
<div className="modal-overlay"/>
<div className="modal-wrapper">
<div className="modal">
<div className="modal-header">
<a>Home team: {home_team}</a>
<button type="button" className="modal-close-button" onClick={hide}>
</button>
</div>
</div>
</div>
</React.Fragment>, document.body
) : null;}
export default Modal;
// 主要組件
const League = ({ league, matches }) =>{
const {isShowing, toggle} = useModal();
return (
<Fragment>
<h2>{league}</h2>
{
matches.map((
{
match_id,
country_id,
home_team
}
) =>
{
return (
<div>
<p>{match_id}</p>
<button className="button-default" onClick={toggle}>Show Modal</button>
<a>{home_team}</a>
<Modal
isShowing={isShowing}
hide={toggle}
home_team={home_team}
/>
<p>{home_team}</p>
</div>
)
})
}
</Fragment>
)};
這是匹配數據集的樣子:
[{
match_id: "269568",
country_id:"22",
home_team: "Real Kings"
},
{
match_id: "269569",
country_id:"22",
home_team: "Steenberg United"
},
{
match_id: "269570",
country_id:"22",
home_team: "JDR Stars "
},
{
match_id: "269571",
country_id:"22",
home_team: "Pretoria U"
},
]
我不確定發生了什么,因為數據似乎傳遞得很好。
<p>{home_team}</p>
在主要組件中每次都顯示預期的屬性,但是模態總是顯示數組中的最后一個home_team
項目(例如Pretoria U)
您需要在 map 函數內部調用 useModal 。 否則,您將打開切換所有模態,最后一個與其他模態重疊
const HomeTeam = ({ match_id, country_id, home_team }) => {
const {isShowing, toggle} = useModal();
return (
<div>
<p>{match_id}</p>
<button className="button-default" onClick={toggle}>Show Modal</button>
<a>{home_team}</a>
<Modal
isShowing={isShowing}
hide={toggle}
home_team={home_team}
/>
<p>{home_team}</p>
</div>
)
}
const League = ({ league, matches }) => (
<Fragment>
<h2>{league}</h2>
{ matches.map((match) => <Hometeam {...match} /> }
</Fragment>
);
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