Windymelt https://blog.hatena.ne.jp/Windymelt/ Lambdaカクテル https://blog.3qe.us/ 技術 scala cats とりあえず何かを覚えたらfizzbuzzにするクセやめたい import cats.syntax.all._ import cats.implicits._ extension (d: Int) def ~>(s: String)(n: Int) = (n % d == 0).guard[Option] as s val fizzbuzz = (((2 ~> "fizz" &&& 3 ~> "buzz") >>> (_.toList.combineAll)) &&& (_.toString)) >>> { case (fb, n) => fb.getOrElse(n) } 1 to 50 ma… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.3qe.us%2Fentry%2F2023%2F03%2F04%2F025356" title="Scala: CatsのArrowを覚えたのでfizzbuzzにする - Lambdaカクテル" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> https://cdn-ak.f.st-hatena.com/images/fotolife/W/Windymelt/20230304/20230304025308.png Hatena Blog https://hatena.blog 2023-03-04 02:53:56 rich https://blog.3qe.us/entry/2023/03/04/025356 1.0 100%