{"provider_name":"Hatena Blog","title":"Crystal \u306f\u914d\u5217\u304c\u81ea\u52d5\u62e1\u5f35\u3055\u308c\u306a\u304f\u3066\u3064\u3089\u3044","description":"\u3053\u308c\u306f\u300cRuby\u8133\u306b\u306fCrystal\u3064\u3089\u3044 Advent Calendar 2015\u300d\u306e1\u65e5\u76ee\u306e\u8a18\u4e8b\u3067\u3059\u3002 qiita.com Ruby \u3060\u3068\u914d\u5217\u306e\u7bc4\u56f2\u5916\u306b\u5024\u3092\u4ee3\u5165\u3059\u308b\u3068\u3001 array = [0, 1, 2] array[4] = 4 array #=> [0, 1, 2, nil, 4] \u306e\u3088\u3046\u306b\u3001\u914d\u5217\u304c\u81ea\u52d5\u62e1\u5f35\u3055\u308c\u308b\u306e\u3067\u3059\u304c\u3001Crystal \u3067\u540c\u3058\u3053\u3068\u3092\u3059\u308b\u3068\u4f8b\u5916\u304c\u767a\u751f\u3057\u3066\u3064\u3089\u3044\u3002 % crystal a.cr Index out of bounds (IndexError) [4346711] *CallStack::unwind:Array(Pointer(Void)) +87 [43\u2026","version":"1.0","type":"rich","height":"190","author_url":"https://blog.hatena.ne.jp/tmtms/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.tmtms.net%2Fentry%2F2015%2F12%2F01%2Fcrystal\" title=\"Crystal \u306f\u914d\u5217\u304c\u81ea\u52d5\u62e1\u5f35\u3055\u308c\u306a\u304f\u3066\u3064\u3089\u3044 - tmtms \u306e\u30e1\u30e2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":["Crystal","Ruby"],"published":"2015-12-01 00:00:00","image_url":null,"author_name":"tmtms","provider_url":"https://hatena.blog","blog_url":"https://blog.tmtms.net/","width":"100%","url":"https://blog.tmtms.net/entry/2015/12/01/crystal","blog_title":"tmtms \u306e\u30e1\u30e2"}