{"width":"100%","author_name":"Windymelt","author_url":"https://blog.hatena.ne.jp/Windymelt/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.3qe.us%2Fentry%2F2023%2F05%2F06%2F024015\" title=\"Scala\u3067Seq\u306e\u5148\u982d\u3068\u4e2d\u9593\u3068\u6700\u5f8c\u3092\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u3067\u53d6\u308a\u51fa\u3059\u306b\u306f+:\u3068:+\u3092\u4f7f\u3046\u3068\u826f\u3044 - Lambda\u30ab\u30af\u30c6\u30eb\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","image_url":null,"published":"2023-05-06 02:40:15","version":"1.0","blog_title":"Lambda\u30ab\u30af\u30c6\u30eb","provider_url":"https://hatena.blog","blog_url":"https://blog.3qe.us/","url":"https://blog.3qe.us/entry/2023/05/06/024015","provider_name":"Hatena Blog","categories":["\u6280\u8853","scala"],"height":"190","type":"rich","description":"\u3053\u3046\u3044\u3046Seq\u304c\u3042\u308b\u3068\u3059\u308b\u3002 val lis = Seq(1, 2, 3, 4, 5, 6, 7, 8, 9, 10) \u3053\u308c\u306e\u5148\u982d\u8981\u7d20\u3068\u3001\u6700\u5f8c\u306e\u8981\u7d20\u3001\u305d\u3057\u3066\u3069\u3061\u3089\u3067\u3082\u306a\u3044\u4e2d\u9593\u306e\u8981\u7d20\u3092\u53d6\u308a\u51fa\u3057\u305f\u3044\u3002 \u7d20\u6734\u306b\u3084\u308b\u3068\u3001head\u3068last\u3068\u3092\u4f7f\u3063\u3066\u3001slice(1, lis.size)\u3092\u4f7f\u3046\u3053\u3068\u306b\u306a\u308b\u304c\u3001\u3053\u308c\u3092\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u3067\u3084\u308a\u305f\u3044\u3002 \u5b9f\u306fScala\u3067\u306f\u30eb\u30fc\u30c8\u306e\u30d1\u30c3\u30b1\u30fc\u30b8\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b+:\u3068:+\u3068\u3044\u3046extractor\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u3051\u308b\u306e\u3060: lis match { case head +: mid :+ last => s\"head is $head, mid contain\u2026","title":"Scala\u3067Seq\u306e\u5148\u982d\u3068\u4e2d\u9593\u3068\u6700\u5f8c\u3092\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u3067\u53d6\u308a\u51fa\u3059\u306b\u306f+:\u3068:+\u3092\u4f7f\u3046\u3068\u826f\u3044"}