3つのファイルに分けて記載してます。
create-react-appを使用して作成してます。
index.js[(プロジェクト)/src 直下]
import React from 'react';
import ReactDOM from 'react-dom/client';
import App from './App';
import reportWebVitals from './reportWebVitals';
const todos = [
]
const root = ReactDOM.createRoot(document.getElementById('root'));
root.render(
<React.StrictMode>
<App articles={todos}/>
</React.StrictMode>
);
// If you want to start measuring performance in your app, pass a function
// to log results (for example: reportWebVitals(console.log))
// or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals
reportWebVitals();
App.js[(プロジェクト)/src 直下]
import Article from './components/Article';
function App(props) {
const articles = props.articles.map(
article => <Article key={article.id} contents={article.contents}></Article>
);
return (
<div>{articles}</div>
);
}
export default App;
components[(プロジェクト)/src 直下]/Article.js
const Article = (props) => {
return(
<ul>
<li>{props.contents}</li>
</ul>
)
}
export default Article;