{"categories":["Swift2.0","iOS","Xcode","\u5099\u5fd8\u9332"],"width":"100%","provider_url":"https://hatena.blog","version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Faryzae.hatenablog.com%2Fentry%2F2016%2F06%2F14%2F220000\" title=\"guard let \u30672\u3064\u4ee5\u4e0a\u306e\u5909\u6570\u3092\u307e\u3068\u3081\u3066\u51e6\u7406\u3059\u308b - \u9762\u767d\u304d\u3053\u3068\u306f\u826f\u304d\u3053\u3068\u306a\u308a\" 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,"title":"guard let \u30672\u3064\u4ee5\u4e0a\u306e\u5909\u6570\u3092\u307e\u3068\u3081\u3066\u51e6\u7406\u3059\u308b","url":"https://aryzae.hatenablog.com/entry/2016/06/14/220000","type":"rich","published":"2016-06-14 22:00:00","author_url":"https://blog.hatena.ne.jp/aryzae/","provider_name":"Hatena Blog","blog_url":"https://aryzae.hatenablog.com/","blog_title":"\u9762\u767d\u304d\u3053\u3068\u306f\u826f\u304d\u3053\u3068\u306a\u308a","description":"Swift2\u304b\u3089optional\u578b\u3092unwrap\u3092\u4fdd\u8a3c\u3057\u3064\u3064nil\u3067\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306bguard let\u69cb\u6587\u304c\u7528\u610f\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u3002 \u975e\u5e38\u306b\u4fbf\u5229\u306a\u306e\u3067\u7a4d\u6975\u7684\u306b\u4f7f\u308f\u308c\u308b\u3051\u3069\u3001\u62ec\u5f27\u3084return\u304c\u5fc5\u8981\u306a\u306e\u3067\u3044\u304f\u3064\u3082guard let\u3092\u4f7f\u304a\u3046\u3068\u3059\u308b\u3068\u304b\u3055\u3070\u308b\u3068\u304a\u3082\u3063\u3066\u3044\u305f\u3002\u3057\u304b\u3057\u3001\u5b9f\u306fguard let\u69cb\u6587\u306f\u307e\u3068\u3081\u3066\u66f8\u3051\u308b\u3053\u3068\u3092\u77e5\u3063\u305f\u306e\u3067\u30e1\u30e2\u3057\u3066\u304a\u304f\u3002 // 1\u3064\u3060\u3051unwrap\u3068nil\u30c1\u30a7\u30c3\u30af\u3059\u308b guard let hoge = hoge else { return } // 2\u3064\u4ee5\u4e0aunwrap\u3068nil\u30c1\u30a7\u30c3\u30af\u3059\u308b\u5834\u5408\u306f\",\"\u533a\u5207\u308a\u306b\u3059\u308b // \u5148\u306bunwrap\u3057\u305f\u3082\u306e\u306f\u30012\u3064\u76ee\u4ee5\u964d\u3067\u2026","author_name":"aryzae","height":"190"}