{"height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fjiikko.hatenadiary.org%2Fentry%2F20150509%2F1431186075\" title=\"\u30d6\u30ed\u30c3\u30af\u5909\u6570\u306e\u6570\u3068\u98df\u30d1\u30f3\u306e\u6570 - \u30c4\u30e6\u30c0\u30af\u306e\u8089\u5897\u3057\u306eRuby on Rails\u306e\u521d\u5fc3\u8005\u3067\" 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/jiikko/","provider_name":"Hatena Blog","image_url":null,"width":"100%","blog_url":"https://jiikko.hatenadiary.org/","published":"2015-05-09 00:41:15","provider_url":"https://hatena.blog","version":"1.0","url":"https://jiikko.hatenadiary.org/entry/20150509/1431186075","title":"\u30d6\u30ed\u30c3\u30af\u5909\u6570\u306e\u6570\u3068\u98df\u30d1\u30f3\u306e\u6570","type":"rich","categories":["Ruby"],"blog_title":"\u30c4\u30e6\u30c0\u30af\u306e\u8089\u5897\u3057\u306eRuby on Rails\u306e\u521d\u5fc3\u8005\u3067","description":"\u30d6\u30ed\u30c3\u30af\u5909\u6570\u306e\u500b\u6570\u306b\u3088\u3063\u3066\u3001\u30d6\u30ed\u30c3\u30af\u5909\u6570\u306b\u5165\u3063\u3066\u304f\u308b\u5024\u304c\u5909\u308f\u3063\u3066\u304f\u308b\u3053\u3068\u3092\u77e5\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002 [27] pry(main)> { a: 1, b: 2 }.map { |x| x } => [[:a, 1], [:b, 2]] [32] pry(main)> { a: 1, b: 2 }.map { |k, v| [k, v] } => [[:a, 1], [:b, 2]] \u500b\u6570\u304c1\u3064\u3060\u3068\u30ad\u30fc\u3068\u30d0\u30ea\u30e5\u30fc\u304c\u914d\u5217\u306b\u306a\u3063\u3066\u3044\u3066\u30012\u3064\u3060\u3068\u30ad\u30fc\u3068\u30d0\u30ea\u30e5\u30fc\u304c\u5225\u3005\u306b\u306a\u3063\u3066\u3044\u308b\u306e\u56f3\u3002 rails4.1\u3060\u304b\u304b\u3089\u6700\u521d\u304b\u3089Gemfile\u306b\u66f8\u3044\u3066\u3044\u308bbyebug\u3068\u3044\u3046gem\u3001step\u5b9f\u884c\u3068\u304b\u3067\u304d\u308b\u3051\u3069\u8272\u3064\u304b\u306a\u3044\u306e\u3067\u304b\u2026","author_name":"jiikko"}