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javascriptでアルファベットから数値へ変換する

Last updated at Posted at 2020-05-07

列のアルファベットを数値へ変換したいタイミングがあったので。

アルファベットから数値へ
// アルファベットを数値へ変換(順番に)
function convertToInt(a) {
const alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
return alphabet.indexOf(a) + 1 ;
}

2020年5月27日追記:コメントでいただいた記載の方がスマートに感じたので、配列→文字列へ変更

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