2023/01/18 Option #66
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2023/01/18 の Rust dojo では、Optionについて学びました。
途中参加のためpanic!から教えてもらいました。
読みやすい書き方ってなんだろうと考える良い機会でした。
let none: Noneかlet none = Noneかのあたり...