{"blog_title":"\u305c\u306e\u305c","url":"https://giarrium.hatenablog.com/entry/2021/10/26/203443","height":"190","description":"\u65e5\u8a18 \u4eca\u65e5\u66f8\u3044\u305f\u30b3\u30fc\u30c9 @dynamicMemberLookup struct DynamicStruct { var dictionary = [ \"a\": 0, \"b\": 1, ] subscript(dynamicMember member: String) -> Int { dictionary[member] ?? -1 } } var ds = DynamicStruct() print(ds.a) // 0 ds.dictionary[\"c\"] = 3 print(ds.c) // 3 var d: Double = ds.d // Cannot convert value of\u2026","type":"rich","provider_url":"https://hatena.blog","image_url":null,"width":"100%","title":"130\u65e5\u76ee ","author_name":"gurrium","version":"1.0","published":"2021-10-26 20:34:43","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fgiarrium.hatenablog.com%2Fentry%2F2021%2F10%2F26%2F203443\" title=\"130\u65e5\u76ee  - \u305c\u306e\u305c\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","blog_url":"https://giarrium.hatenablog.com/","author_url":"https://blog.hatena.ne.jp/gurrium/","categories":["Swift"]}