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@langhuanamacha

reactコース＃４

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今日やったこと

・state

学んだこと

・同じ更新用関数を繰り返したかったら関数型更新を使う

setCount(count + 1);  
setCount(count + 1); 
これはだめ

setCount(prev => prev + 1);
setCount(prev => prev + 1);
関数型更新を使う

次やること

・55 ステートとコンポーネントの関係

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