{"version":"1.0","type":"rich","categories":["Programming","Ruby"],"provider_url":"https://hatena.blog","description":"\u6c17\u304c\u3064\u3044\u305f\u3089\u3001\u5e74\u304c\u660e\u3051\u3066\u307e\u3057\u305f\u3002\u3042\u3051\u307e\u3057\u3066\u304a\u3081\u3067\u3068\u3046\u3054\u3056\u3044\u307e\u3059\u3002\u65e9\u901f\u672c\u984c\u306b\u5165\u308a\u307e\u3059\u3002JavaScript\u306f\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u306a\u3069\u7121\u304f\u30d5\u30ea\u30fc\u30c0\u30e0\u306a\u306e\u3067this[key] = value\u306e\u5f62\u3067\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u66f8\u304d\u63db\u3048\u3089\u308c\u307e\u3059\u304c\u3001Ruby\u3067\u306fself[key] = value\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u306f\u3066\u3068\u601d\u3044\u3001Ruby\u30de\u30cb\u30e5\u30a2\u30eb\u3092\u773a\u3081\u3066\u3044\u305f\u3089\u3001\u305d\u308c\u3063\u307d\u3044Object#instance_variable_set\u3068\u3044\u3046\u30e1\u30bd\u30c3\u30c9\u304c\u3042\u308a\u307e\u3057\u305f\u3002\u78ba\u8a8d\u306e\u305f\u3081\u3001\u7c21\u5358\u306a\u30b5\u30f3\u30d7\u30eb\u3092\u4f5c\u3063\u3066\u307f\u307e\u3057\u305f\u3002 class Hoge def initialize(copy=nil) @foo = 1 @bar = 2 if copy copy.ea\u2026","height":"190","author_url":"https://blog.hatena.ne.jp/s-shin/","image_url":null,"url":"https://shin.hateblo.jp/entry/2013/01/02/153540","published":"2013-01-02 15:35:40","provider_name":"Hatena Blog","author_name":"s-shin","title":"Ruby\u3067\u5909\u6570\u540d\u3092\u6307\u5b9a\u3057\u3066\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570\u3092\u66f8\u304d\u63db\u3048\u308b\u65b9\u6cd5","blog_url":"https://shin.hateblo.jp/","blog_title":"$ cat /var/log/shin","width":"100%","html":""}