{"published":"2021-02-27 07:24:12","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkuukaix.hatenablog.com%2Fentry%2F2021%2F02%2F27%2F072412\" title=\"as\u3092\u4f7f\u3063\u3066\u578b\u306e\u5224\u5b9a - kuukaix\u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","url":"https://kuukaix.hatenablog.com/entry/2021/02/27/072412","author_url":"https://blog.hatena.ne.jp/kuukaix/","blog_url":"https://kuukaix.hatenablog.com/","categories":[],"height":"190","blog_title":"kuukaix\u306e\u65e5\u8a18","image_url":null,"author_name":"kuukaix","version":"1.0","provider_url":"https://hatena.blog","type":"rich","width":"100%","title":"as\u3092\u4f7f\u3063\u3066\u578b\u306e\u5224\u5b9a","provider_name":"Hatena Blog","description":"/* \u578b\u30ad\u30e3\u30b9\u30c8 as\u3092\u4f7f\u3063\u3066\u578b\u306e\u5224\u5b9a */ // var things = Any[]() // error: value of type 'Any.Protocol' has no subscripts var things : [Any] = [] things.append(0) things.append(0.0) for thing in things { switch thing { case 0 as Int: print(\"zero as an Int\") case 0 as Double: print(\"zero as a Double\") default: // TOFI\u2026"}