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JavaScript(ES6)でアルファベットの連番を作成する

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アルファベット連番

A-Zの連番。
単純な話。需要が無いのか意外と情報が無い。

[...Array(26)].map((v, i) => String.fromCodePoint(i + 65));
// Array(26) [ "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", … ]

コードが少し長くなるが、中間配列を生成しない場合は以下。

Array.from({length: 26}, (v, i) => String.fromCodePoint(i + 65));
// Array(26) [ "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", … ]
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