{"description":"deep_dup \u306e\u8a71\u304c Twitter \u3067\u51fa\u305f\u306e\u3067\u8a66\u3057\u3066\u307f\u307e\u3057\u305f\u3002 ActiveSupport \u306e #deep_dup \u3092\u3064\u304b\u3063\u305f\u5834\u5408 ActiveSupport \u306b #deep_dup \u306e\u5b9f\u88c5\u304c\u3042\u308b\u306e\u3067\u305d\u308c\u3067\u8a66\u3057\u3066\u307f\u307e\u3057\u305f\u3002 require \"active_support\" require \"active_support/core_ext/object/deep_dup.rb\" a = [1, 2, 3] a[3] = a # error: in `map': stack level too deep (SystemStackError) p a.deep_dup \u3068\u3001\u3044\u3046\u3053\u3068\u3067 Syst\u2026","provider_name":"Hatena Blog","type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsecret-garden.hatenablog.com%2Fentry%2F2020%2F05%2F31%2F114307\" title=\"Ruby \u3067\u5faa\u74b0\u53c2\u7167\u3057\u3066\u308b\u914d\u5217\u3067 deep_dup \u3059\u308b\u3068\u3069\u3046\u306a\u308b\u304b - Secret Garden(Instrumental)\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"Secret Garden(Instrumental)","categories":["Ruby"],"width":"100%","blog_url":"https://secret-garden.hatenablog.com/","image_url":null,"title":"Ruby \u3067\u5faa\u74b0\u53c2\u7167\u3057\u3066\u308b\u914d\u5217\u3067 deep_dup \u3059\u308b\u3068\u3069\u3046\u306a\u308b\u304b","url":"https://secret-garden.hatenablog.com/entry/2020/05/31/114307","author_url":"https://blog.hatena.ne.jp/osyo-manga/","published":"2020-05-31 11:43:07","version":"1.0","height":"190","provider_url":"https://hatena.blog","author_name":"osyo-manga"}