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【JavaScript】コールバック関数メモ

Posted at

配列arryに数字を格納し、それを1つずつコンソールに出力させる処理

app.js
const arry = [1, 2, 3, 4]

arry.forEach(function() {
  console.log(val)
})
出力結果
1
2
3
4
0
0
0

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