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アロー関数への書き換え #3

@watagit

Description

@watagit

モダンな JavaScript では、アロー関数がよく用いられるので、書き換えてみましょう。

例えばこんな感じです

$up.addEventListener('click', function () {
  count = count + 1;
  counter.innerHTML = count;
});

↓ 書き換え

$up.addEventListener('click', () => {
  count = count + 1;
  counter.innerHTML = count;
});

📝 Reference

[MDN] アロー関数式

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