Last Updated:2025/11/21

To validate email formats, she wrote a concise regular expression that uses concatenation, alternation, and repetition to define allowed characters.

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To validate email formats, she wrote a concise regular expression that uses concatenation, alternation, and repetition to define allowed characters.

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メール形式を検証するために、彼女は連結、選択、繰り返しの記法を使って許可される文字を定義する簡潔な正規表現を書いた。

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