{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftanihiro.hatenablog.com%2Fentry%2F2014%2F10%2F22%2F194717\" title=\"\u3010swift\u3011Optional Binding\u306b\u3064\u3044\u3066 - tanihiro.log\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_url":"https://blog.hatena.ne.jp/w6500/","author_name":"w6500","description":"\u524d\u56deswift\u3067\u306enil\u306e\u53d6\u308a\u6271\u3044\u306b\u3064\u3044\u3066\u307e\u3068\u3081\u307e\u3057\u305f\u3002 \u3010swift\u3011nil\u3068optional\u306a\u578b\u306e\u53d6\u308a\u6271\u3044 - tanihiro.log \u4eca\u56de\u306fnil\u3092\u53d6\u308a\u6271\u3046\u6642\u306b\u4fbf\u5229\u306a\u8a18\u6cd5\u306eOptional Binding\u306b\u3064\u3044\u3066\u307e\u3068\u3081\u307e\u3059\u3002 Optional Binding \u5fc5\u8981\u306b\u306a\u308b\u30b1\u30fc\u30b9 \u4f8b\u3048\u3070\u3001\u95a2\u6570\u306e\u4e2d\u306b\u306f\u8fd4\u308a\u5024\u304cOptional\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002 \u914d\u5217\u304b\u3089index\u306e\u5024\u3092\u53d6\u5f97\u3059\u308bfind\u306a\u3069\u304c\u305d\u3046\u3067\u3059\u3002 var array: [String] = [\"a\", \"b\", \"c\"] find(array, 'c') // 2 find(array, 'd') // nil \u305d\u3053\u3067\u3001find\u306e\u8fd4\u308a\u5024\u2026","published":"2014-10-22 19:47:17","title":"\u3010swift\u3011Optional Binding\u306b\u3064\u3044\u3066","url":"https://tanihiro.hatenablog.com/entry/2014/10/22/194717","image_url":null,"provider_name":"Hatena Blog","version":"1.0","provider_url":"https://hatena.blog","type":"rich","height":"190","width":"100%","categories":["swift","iOS"],"blog_title":"tanihiro.log","blog_url":"https://tanihiro.hatenablog.com/"}