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【React】childrenの数を数える方法

React

Last updated at 2024-01-10Posted at 2023-12-26

以下のようにChildren.count()を使用することでchildrenの要素の数を数えることができます。

import { Children } from 'react';

function RowList({ children }) {
  return (
    <>
      <h1>Total rows: {Children.count(children)}</h1>
      ...
    </>
  );
}

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