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[JavaScript][Node.js]メモ:アロー関数の即時関数(関数を定義してその場で実行する)

アロー関数と即時関数を組み合わせる書き方。

const a = (() => {
    // 何らかの処理
    return 'Hello!'
})()

余談だが、即時関数の正式名は、「IIFE (即時実行関数式)」っぽい。
「即時関数」でググっても公式のドキュメントにはなかなかたどり着けない。

参考リンク

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