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@dapontain株式会社ディー・エヌ・エー

querySelectorAllをmapする

Last updated at Posted at 2019-11-21

スクレイピング時に手軽にリストを展開したいとき

querySelectorAllはArrayではないのでforEachはありますがmapはありません
中のコンテンツを取り出したいときにforEach+pushだと煩わしさがあるのでmapでなんとかしたいと思うでしょう。

以下の方法でmapすることができます

サンプルコード

const data = [...document.querySelectorAll('.list li')].map((node) => {
  return node.textContent
})
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