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Reactメモ

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メモ

App.js

// 基本形:
// Reactをインポート
import React from 'react';

// Appクラスを定義
class App extends React.Component{
  const text='Hello' //render()の外ならjavascrptがかける
  render(){ //jsxを戻り値とするメソッドの定義の定義
    return (
       <div>{/*必ず<div>で囲う */}

       </div>
    );
  }
}

// Appクラスをエクスポート
export default App  ;

App.js

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