{"id":76564,"date":"2018-10-17T18:46:12","date_gmt":"2018-10-17T09:46:12","guid":{"rendered":"https:\/\/www.sejuku.net\/blog\/?p=76564"},"modified":"2024-05-06T11:53:05","modified_gmt":"2024-05-06T02:53:05","slug":"%e3%81%af%e3%81%98%e3%82%81%e3%81%a6%e3%81%aeruby%ef%bc%81dup%e3%83%a1%e3%82%bd%e3%83%83%e3%83%89%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%e3%82%92%e3%82%84%e3%81%95%e3%81%97%e3%81%8f%e8%a7%a3%e8%aa%ac","status":"publish","type":"post","link":"https:\/\/www.sejuku.net\/blog\/76564","title":{"rendered":"\u306f\u3058\u3081\u3066\u306eRuby\uff01dup\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9\u3092\u3084\u3055\u3057\u304f\u89e3\u8aac"},"content":{"rendered":"

\u3053\u3093\u306b\u3061\u306f\uff01\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u30bf\u30ca\u30ab\u30b4\u30c0\u30a4\u3067\u3059\u3002 <\/p>\n

ruby\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u30b3\u30d4\u30fc\u3057\u3066\u3001\u30b3\u30d4\u30fc\u5148\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u4e2d\u8eab\u3092\u5909\u66f4\u3057\u305f\u3068\u304d\u3001\u300c\u30b3\u30d4\u30fc\u5143\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u4e2d\u8eab\u3082\u5909\u308f\u3063\u3066\u3057\u307e\u3063\u305f\u2026\u300d\u3068\u3044\u3046\u3088\u3046\u306a\u7d4c\u9a13\u306f\u3042\u308a\u307e\u305b\u3093\u304b\uff1f<\/p>\n

\u305d\u306e\u3088\u3046\u306a\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u65b9\u6cd5\u3068\u3057\u3066\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30b3\u30d4\u30fc\u3092\u4f5c\u6210\u3059\u308bdup\u30e1\u30bd\u30c3\u30c9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n


\n\u3010\u57fa\u790e\u3011dup\u30e1\u30bd\u30c3\u30c9\u3068\u306f\u4f55\u304b\uff1f
\n\u3010\u57fa\u790e\u3011dup\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9
\n\u3010\u767a\u5c55\u3011dup\u30e1\u30bd\u30c3\u30c9\u306e\u985e\u4f3c\u30e1\u30bd\u30c3\u30c9\u3067\u3042\u308bclone\u30e1\u30bd\u30c3\u30c9\u3068\u306f\uff1f
\n\u3010\u767a\u5c55\u3011dup\u30e1\u30bd\u30c3\u30c9\u3068clone\u30e1\u30bd\u30c3\u30c9\u306e\u9055\u3044
\n<\/p>\n

\u306a\u3069\u306edup\u30e1\u30bd\u30c3\u30c9\u306b\u95a2\u9023\u3059\u308b\u57fa\u672c\u304b\u3089\u5fdc\u7528\u7684\u306a\u5185\u5bb9\u306b\u3064\u3044\u3066\u3082\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n

dup\u30e1\u30bd\u30c3\u30c9\u3068\u306f<\/h2>\n

dup\u30e1\u30bd\u30c3\u30c9\u3068\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30b3\u30d4\u30fc\u3092\u4f5c\u6210\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002<\/p>\n

dup\u30e1\u30bd\u30c3\u30c9\u306f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570\u3092\u30b3\u30d4\u30fc\u3057\u305f\u5f8c\u306b\u3001Object\u30af\u30e9\u30b9\u306einitialize_copy\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u307e\u3059\u3002<\/p>\n

\u305d\u3057\u3066\u3001Object\u30af\u30e9\u30b9\u304c\u6301\u3064\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u30e1\u30bd\u30c3\u30c9\u306a\u306e\u3067\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u7d9a\u3051\u3066\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

dup\u30e1\u30bd\u30c3\u30c9\u306e\u57fa\u672c\u7684\u306a\u66f8\u304d\u65b9\u3092\u4ee5\u4e0b\u306b\u8a18\u8f09\u3057\u307e\u3059\u3002<\/p>\n

original_object = ["a", "b", "c"]\r\ncopied_object = original_object.dup\r\np copied_object<\/pre>\n
["a", "b", "c"]<\/pre>\n
\u4e0a\u8a18\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u306f\u3001original_object\u306e\u5185\u5bb9\u3092dup\u30e1\u30bd\u30c3\u30c9\u3067copied_object\u306b\u30b3\u30d4\u30fc\u3092\u4f5c\u6210\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u51fa\u529b\u7d50\u679c\u3092\u78ba\u8a8d\u3059\u308b\u3068\u3001original_object\u306e\u5024\u304ccopied_object\u306b\u30b3\u30d4\u30fc\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n
dup\u30e1\u30bd\u30c3\u30c9\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9<\/h2>\n
\u3053\u3053\u3067\u306f\u3001dup\u30e1\u30bd\u30c3\u30c9\u306f\u300c\u3069\u306e\u3088\u3046\u306b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u30b3\u30d4\u30fc\u3057\u3066\u3044\u308b\u304b\u300d\u3092\u3001\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u7528\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n
\u521d\u3081\u306b\u7d50\u8ad6\u304b\u3089\u8ff0\u3079\u308b\u3068\u3001dup\u30e1\u30bd\u30c3\u30c9\u306f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u53c2\u7167\u5024\u3092\u30b3\u30d4\u30fc\u3057\u3066\u65b0\u3057\u304f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u3064\u307e\u308a\u3001dup\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u30b3\u30d4\u30fc\u3059\u308b\u3068\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u6301\u3064id\u304c\u65b0\u3057\u304f\u751f\u6210\u3055\u308c\u308b\u306e\u3067\u3059\u3002<\/p>\n
\u3053\u306e\u6319\u52d5\u306fdup\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\u3068\u3001=\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\u306eobject_id\u306e\u5909\u5316\u3092\u78ba\u8a8d\u3057\u306a\u304c\u3089\u7406\u89e3\u3059\u308b\u3068\u3044\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n
\u4ee5\u4e0b\u306e\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u306f\u3001a\u306b\u914d\u5217[{:a=>1}, {:b=>2}, {:c=>3}]\u3092\u4ee3\u5165\u3057\u3001\u305d\u306ea\u3092b\u306b\u4ee3\u5165\u3001\u3055\u3089\u306bb\u3092dup\u30e1\u30bd\u30c3\u30c9\u3067\u30b3\u30d4\u30fc\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u3053\u306e\u6642\u306ea, b, c\u305d\u308c\u305e\u308c\u306eobject_id\u3092\u2460\u3067\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n
\u3055\u3089\u306b\u3001b[0]\u306e\u5024\u3092\u5909\u66f4\u3057\u3001a, b, c\u305d\u308c\u305e\u308c\u306e\u5024\u306e\u78ba\u8a8d\u3092\u2461\u3067\u884c\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n
a = [{:a=>1}, {:b=>2}, {:c=>3}]\r\nb = a\r\nc = b.dup\r\n\r\n# \u2460\uff1aobject_id\u306e\u78ba\u8a8d\r\np a.object_id # a\u306eobject_id\r\np b.object_id # b\u306eobject_id\r\np c.object_id # c\u306eobject_id\r\n\r\nb[0] = {:a=>111}\r\n\r\n# \u2461\uff1a\u5024\u306e\u78ba\u8a8d\r\np a # a\u306e\u5024\r\np b # b\u306e\u5024\r\np c # c\u306e\u5024<\/pre>\n
\u4e0a\u8a18\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u51fa\u529b\u7d50\u679c\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n
# \u2460\uff1aobject_id\u306e\u78ba\u8a8d\r\n6690120 # a\u306eobject_id\r\n6690120 # b\u306eobject_id\r\n6628380 # c\u306eobject_id\r\n\r\n# \u2461\uff1a\u5024\u306e\u78ba\u8a8d\r\n[{:a=>111}, {:b=>2}, {:c=>3}] # a\u306e\u5024\r\n[{:a=>111}, {:b=>2}, {:c=>3}] # b\u306e\u5024\r\n[{:a=>1}, {:b=>2}, {:c=>3}] # c\u306e\u5024<\/pre>\n
\u2460\u306e\u7d50\u679c\u3067\u306f\u3001a\u306eobject_id\u3068b\u306eobject_id\u304c\u7b49\u3057\u304f\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n
=\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\u306f\u3001b\u306ba\u3068\u3044\u3046\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4ee3\u5165\u3059\u308b\u3001\u3068\u3044\u3046\u6319\u52d5\u306b\u306a\u308b\u305f\u3081a\u3068b\u306eobject_id\u304c\u7b49\u3057\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n
\u5bfe\u3057\u3066\u3001c\u306eobject_id\u306fdup\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u305f\u3053\u3068\u306b\u3088\u308a\u3001\u65b0\u3057\u3044object_id\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n
\u305d\u3057\u3066\u3001object_id\u304c\u7570\u306a\u308b\u3068\u3044\u3046\u3053\u3068\u306f\u2461\u306e\u7d50\u679c\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002<\/p>\n
\u2461\u3067\u306f\u3001b[0]\u306e\u5024\u3092\u5909\u66f4\u3057\u3066\u3001a, b, c\u305d\u308c\u305e\u308c\u306e\u5024\u3092\u51fa\u529b\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u2460\u3067\u5206\u304b\u3063\u305f\u901a\u308aa\u3068b\u306f\u540c\u3058\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u53c2\u7167\u3057\u3066\u3044\u308b\u305f\u3081\u3001b[0]\u306e\u5024\u3092\u5909\u66f4\u3059\u308b\u3068a\u306e\u51fa\u529b\u7d50\u679c\u3082\u5909\u308f\u3063\u3066\u304d\u307e\u3059\u3002<\/p>\n
c\u306f\u3001a, b\u3068\u7570\u306a\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u53c2\u7167\u3057\u3066\u3044\u308b\u305f\u3081\u3001b[0]\u306e\u5024\u3092\u5909\u66f4\u3057\u3066\u3082c\u306e\u5024\u306e\u51fa\u529b\u7d50\u679c\u306b\u306f\u5f71\u97ff\u304c\u51fa\u306a\u3044\u3068\u3044\u3046\u308f\u3051\u3067\u3059\u3002<\/p>\n
\u3053\u306e\u3088\u3046\u306b\u3057\u3066\u3001dup\u30e1\u30bd\u30c3\u30c9\u306f\u5024\u3092\u30b3\u30d4\u30fc\u3057\u3066\u65b0\u305f\u306b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u306a\u306e\u3067\u3059\u3002<\/p>\n
dup\u30e1\u30bd\u30c3\u30c9\u3068clone\u30e1\u30bd\u30c3\u30c9\u306e\u9055\u3044\u3068\u306f<\/h2>\n
dup\u30e1\u30bd\u30c3\u30c9\u306b\u985e\u4f3c\u3057\u3066\u3044\u308b\u30e1\u30bd\u30c3\u30c9\u3068\u3057\u3066\u3001clone\u30e1\u30bd\u30c3\u30c9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
clone\u30e1\u30bd\u30c3\u30c9\u3068\u306f\u3001dup\u30e1\u30bd\u30c3\u30c9\u3068\u540c\u69d8\u306b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u30b3\u30d4\u30fc\u3057\u3066\u4f5c\u6210\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002<\/p>\n
\u66f8\u304d\u65b9\u306fdup\u30e1\u30bd\u30c3\u30c9\u3068\u5909\u308f\u308a\u306a\u304f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u7d9a\u3051\u3066clone\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n
origin = ["a", "b", "c"]\r\nclone = origin.clone\r\np clone<\/pre>\n
["a", "b", "c"]<\/pre>\n
\u3067\u306f\u3001dup\u30e1\u30bd\u30c3\u30c9\u3068clone\u30e1\u30bd\u30c3\u30c9\u3067\u306f\u4f55\u304c\u9055\u3046\u306e\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n
\u3069\u3061\u3089\u3082\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u30b3\u30d4\u30fc\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u304c\u3001\u4ee5\u4e0b\u306e\u70b9\u306b\u304a\u3044\u3066\u30012\u3064\u306e\u30e1\u30bd\u30c3\u30c9\u306b\u5dee\u7570\u304c\u751f\u3058\u307e\u3059\u3002<\/p>\n

\n\u30fbclone\u30e1\u30bd\u30c3\u30c9\u306f\u51cd\u7d50\u72b6\u614b\/\u6c5a\u67d3\u72b6\u614b\/\u4fe1\u983c\u72b6\u614b\/\u7279\u7570\u30e1\u30bd\u30c3\u30c9\u307e\u3067\u30b3\u30d4\u30fc
\n\u30fbdup\u30e1\u30bd\u30c3\u30c9\u306f\u6c5a\u67d3\u72b6\u614b\/\u4fe1\u983c\u72b6\u614b\u3092\u30b3\u30d4\u30fc\u3057\u3001\u51cd\u7d50\u72b6\u614b\/\u7279\u7570\u30e1\u30bd\u30c3\u30c9\u306f\u30b3\u30d4\u30fc\u3057\u306a\u3044
\n<\/p>\n
\u4ee5\u4e0b\u306e\u8868\u3067\u3001dup\u30e1\u30bd\u30c3\u30c9\u3068clone\u30e1\u30bd\u30c3\u30c9\u306e\u5dee\u7570\u306b\u3064\u3044\u3066\u307e\u3068\u3081\u307e\u3057\u305f\u3002<\/p>\n\n\n\n\n\t\n\n\t\n\t
\u30e1\u30bd\u30c3\u30c9<\/th>\u51cd\u7d50\u72b6\u614b<\/th>\u6c5a\u67d3\u72b6\u614b<\/th>\u4fe1\u983c\u72b6\u614b
\n<\/th>		\u7279\u7570\u30e1\u30bd\u30c3\u30c9<\/th>\n<\/tr>\n<\/thead>\n
dup\u30e1\u30bd\u30c3\u30c9<\/td>\u30b3\u30d4\u30fc\u3057\u306a\u3044<\/td>\u30b3\u30d4\u30fc\u3059\u308b<\/td>\u30b3\u30d4\u30fc\u3059\u308b<\/td>\u30b3\u30d4\u30fc\u3057\u306a\u3044<\/td>\n<\/tr>\n
clone\u30e1\u30bd\u30c3\u30c9<\/td>\u30b3\u30d4\u30fc\u3059\u308b<\/td>\u30b3\u30d4\u30fc\u3059\u308b<\/td>\u30b3\u30d4\u30fc\u3059\u308b<\/td>\u30b3\u30d4\u30fc\u3059\u308b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n
\u305d\u308c\u3067\u306f\u5b9f\u969b\u306bdup\u30e1\u30bd\u30c3\u30c9\u3068clone\u30e1\u30bd\u30c3\u30c9\u306e\u9055\u3044\u3092\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
\u51cd\u7d50\u72b6\u614b<\/h3>\n
\u51cd\u7d50\u72b6\u614b\u3068\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u5909\u66f4\u53ef\u80fd\u304b\u3069\u3046\u304b\u3092\u793a\u3059\u72b6\u614b\u306e\u3053\u3068\u3067\u3059\u3002<\/p>\n
Object\u30af\u30e9\u30b9\u304c\u3082\u3064freeze\u30e1\u30bd\u30c3\u30c9\u3067\u51cd\u7d50\u72b6\u614b\u306b\u5909\u66f4\u3057\u3001frozen?\u30e1\u30bd\u30c3\u30c9\u3067\u51cd\u7d50\u72b6\u614b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
dup\u30e1\u30bd\u30c3\u30c9\u3068clone\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u305f\u969b\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u51cd\u7d50\u72b6\u614b\u306b\u3064\u3044\u3066\u3001\u5b9f\u969b\u306e\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n
a = "aaa"\r\na.freeze # \u51cd\u7d50\u72b6\u614b\u306b\u3059\u308b\r\np a.frozen? # \u51cd\u7d50\u72b6\u614b\u3092\u78ba\u8a8d(1-1)\r\n\r\na_dup = a.dup\r\np a_dup.frozen? # dup\u306e\u51cd\u7d50\u72b6\u614b\u3092\u78ba\u8a8d(1-2)\r\n\r\na_clone = a.clone\r\np a_clone.frozen? # clone\u306e\u51cd\u7d50\u72b6\u614b\u3092\u78ba\u8a8d(1-3)<\/pre>\n
true\r\nfalse\r\ntrue<\/pre>\n
\u51fa\u529b\u7d50\u679c\u3088\u308a\u3001dup\u30e1\u30bd\u30c3\u30c9\u306f\u51cd\u7d50\u72b6\u614b\u3092\u30b3\u30d4\u30fc\u305b\u305a\u3001clone\u30e1\u30bd\u30c3\u30c9\u306f\u51cd\u7d50\u72b6\u614b\u3092\u30b3\u30d4\u30fc\u3059\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n
\u6c5a\u67d3\u72b6\u614b<\/h3>\n
\u6c5a\u67d3\u72b6\u614b\u3068\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u6c5a\u67d3\u3055\u308c\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u793a\u3059\u72b6\u614b\u306e\u3053\u3068\u3067\u3059\u3002<\/p>\n
Object\u30af\u30e9\u30b9\u304c\u3082\u3064taint\u30e1\u30bd\u30c3\u30c9\u3067\u6c5a\u67d3\u72b6\u614b\u306b\u5909\u66f4\u3057\u3001untaint\u30e1\u30bd\u30c3\u30c9\u3067\u6c5a\u67d3\u72b6\u614b\u3092\u89e3\u9664\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u307e\u305f\u3001tainted?\u30e1\u30bd\u30c3\u30c9\u3067\u6c5a\u67d3\u72b6\u614b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
dup\u30e1\u30bd\u30c3\u30c9\u3068clone\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u305f\u969b\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u6c5a\u67d3\u72b6\u614b\u306b\u3064\u3044\u3066\u3001\u5b9f\u969b\u306e\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n
a = "aaa"\r\na.taint # \u6c5a\u67d3\u72b6\u614b\u306b\u3059\u308b\r\np a.tainted? # \u6c5a\u67d3\u72b6\u614b\u3092\u78ba\u8a8d(2-1)\r\n\r\na_dup = a.dup\r\np a_dup.tainted? # dup\u306e\u6c5a\u67d3\u72b6\u614b\u3092\u78ba\u8a8d(2-2)\r\n\r\na_clone = a.clone\r\np a_clone.tainted? # clone\u306e\u6c5a\u67d3\u72b6\u614b\u3092\u78ba\u8a8d(2-3)<\/pre>\n
true\r\ntrue\r\ntrue<\/pre>\n
\u51fa\u529b\u7d50\u679c\u3088\u308a\u3001dup\u30e1\u30bd\u30c3\u30c9\u3068clone\u30e1\u30bd\u30c3\u30c9\u306f\u3069\u3061\u3089\u3082\u6c5a\u67d3\u72b6\u614b\u3092\u30b3\u30d4\u30fc\u3059\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n
\u4fe1\u983c\u72b6\u614b<\/h3>\n
\u4fe1\u983c\u72b6\u614b\u3068\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u4fe1\u983c\u3055\u308c\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u793a\u3059\u72b6\u614b\u306e\u3053\u3068\u3067\u3059\u3002<\/p>\n
Object\u30af\u30e9\u30b9\u304c\u3082\u3064trust\u30e1\u30bd\u30c3\u30c9\u3067\u4fe1\u983c\u72b6\u614b\u306b\u5909\u66f4\u3057\u3001untrust\u30e1\u30bd\u30c3\u30c9\u3067\u4fe1\u983c\u3055\u308c\u3066\u3044\u306a\u3044\u72b6\u614b\u306b\u5909\u66f4\u3057\u307e\u3059\u3002<\/p>\n
\u307e\u305f\u3001untrusted?\u30e1\u30bd\u30c3\u30c9\u3067\u4fe1\u983c\u72b6\u614b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
dup\u30e1\u30bd\u30c3\u30c9\u3068clone\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u305f\u969b\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u4fe1\u983c\u72b6\u614b\u306b\u3064\u3044\u3066\u3001\u5b9f\u969b\u306e\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n
a = "aaa"\r\na.untrust # \u4fe1\u983c\u3055\u308c\u306a\u3044\u72b6\u614b\u306b\u3059\u308b\r\np a.untrusted? # \u4fe1\u983c\u72b6\u614b\u3092\u78ba\u8a8d(3-1)\r\n\r\na_dup = a.dup\r\np a_dup.untrusted? # dup\u306e\u4fe1\u983c\u72b6\u614b\u3092\u78ba\u8a8d(3-2)\r\n\r\na_clone = a.clone\r\np a_clone.untrusted? # clone\u306e\u4fe1\u983c\u72b6\u614b\u3092\u78ba\u8a8d(3-3)<\/pre>\n
true\r\ntrue\r\ntrue<\/pre>\n
\u51fa\u529b\u7d50\u679c\u3088\u308a\u3001dup\u30e1\u30bd\u30c3\u30c9\u3068clone\u30e1\u30bd\u30c3\u30c9\u306f\u3069\u3061\u3089\u3082\u4fe1\u983c\u72b6\u614b\u3092\u30b3\u30d4\u30fc\u3059\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n
\u7279\u7570\u30e1\u30bd\u30c3\u30c9<\/h3>\n
\u6700\u5f8c\u306b\u7279\u7570\u30e1\u30bd\u30c3\u30c9\u306b\u3064\u3044\u3066\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n
\u7279\u7570\u30e1\u30bd\u30c3\u30c9\u3068\u306f\u3001\u7c21\u6f54\u306b\u8aac\u660e\u3059\u308b\u3068\u5bfe\u8c61\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u56fa\u6709\u3067\u6301\u3064\u30e1\u30bd\u30c3\u30c9\u306e\u3053\u3068\u3067\u3059\u3002<\/p>\n
\u4ee5\u4e0b\u306f\u3001a\u3068\u3044\u3046\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306bsingular_method\u3068\u3044\u3046\u7279\u7570\u30e1\u30bd\u30c3\u30c9\u3092\u5b9a\u7fa9\u3057\u3001\u3053\u306e\u7279\u7570\u30e1\u30bd\u30c3\u30c9singular_method\u304c\u3001dup\u30e1\u30bd\u30c3\u30c9\u3068clone\u30e1\u30bd\u30c3\u30c9\u3067\u30b3\u30d4\u30fc\u3055\u308c\u308b\u304b\u5426\u304b\u3092\u78ba\u8a8d\u3059\u308b\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3059\u3002<\/p>\n
a = "aaa"\r\n# a\u306b\u7279\u7570\u30e1\u30bd\u30c3\u30c9singular_method\u3092\u5b9a\u7fa9\r\ndef a.singular_method\r\n  p "\u7279\u7570\u30e1\u30bd\u30c3\u30c9"\r\nend\r\na.methods.grep(\/singular_method\/) # a\u304csingular_method\u3092\u6301\u3063\u3066\u3044\u308b\u304b\u8abf\u3079\u308b(4-1)\r\na.singular_method # singular_method\u3092\u5b9f\u884c(4-2)\r\n\r\na_dup = a.dup\r\na_dup.methods.grep(\/singular_method\/) # (4-3)\r\na_dup.singular_method # (4-4)\r\n\r\na_clone = a.clone\r\na_clone.methods.grep(\/singular_method\/) # (4-5)\r\na_clone.singular_method # (4-6)<\/pre>\n
[:singular_method] # (4-1)\r\n"\u7279\u7570\u30e1\u30bd\u30c3\u30c9" # (4-2)\r\n\r\n [] # (4-3)\r\nNoMethodError: undefined method `singular_method' for "aaa":String # (4-4)\r\n\r\n[:singular_method] # (4-5)\r\n"\u7279\u7570\u30e1\u30bd\u30c3\u30c9" # (4-6)<\/pre>\n
\u51fa\u529b\u7d50\u679c\u3088\u308a\u3001dup\u30e1\u30bd\u30c3\u30c9\u306fNoMethodError\u304c\u51fa\u3066\u3044\u308b\u305f\u3081\u7279\u7570\u30e1\u30bd\u30c3\u30c9singular_method\u307e\u3067\u306f\u30b3\u30d4\u30fc\u3057\u3066\u3044\u306a\u3044\u3053\u3068\u304c\u308f\u304b\u308a\u3001clone\u30e1\u30bd\u30c3\u30c9\u306f\u7279\u7570\u30e1\u30bd\u30c3\u30c9singular_method\u307e\u3067\u30b3\u30d4\u30fc\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n
\u307e\u3068\u3081<\/h2>\n
\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001dup\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9\u3092\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u7528\u3044\u3066\u89e3\u8aac\u3057\u307e\u3057\u305f\u3002 <\/p>\n
dup\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30b3\u30d4\u30fc\u3092\u4f5c\u6210\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002 <\/p>\n
\u307e\u305f\u3001dup\u30e1\u30bd\u30c3\u30c9\u4ee5\u5916\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30b3\u30d4\u30fc\u3092\u4f5c\u6210\u3059\u308bclone\u30e1\u30bd\u30c3\u30c9\u306b\u3064\u3044\u3066\u3082\u9055\u3044\u3068\u3068\u3082\u306b\u89e3\u8aac\u3057\u307e\u3057\u305f\u3002<\/p>\n
\u305c\u3072\u3053\u306e\u6a5f\u4f1a\u306bdup\u30e1\u30bd\u30c3\u30c9\/clone\u30e1\u30bd\u30c3\u30c9\u3092\u30de\u30b9\u30bf\u30fc\u3057\u3066\u304f\u3060\u3055\u3044\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u3053\u3093\u306b\u3061\u306f\uff01\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u30bf\u30ca\u30ab\u30b4\u30c0\u30a4\u3067\u3059\u3002 ruby\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u30b3\u30d4\u30fc\u3057\u3066\u3001\u30b3\u30d4\u30fc\u5148\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u4e2d\u8eab\u3092\u5909\u66f4\u3057\u305f\u3068\u304d\u3001\u300c\u30b3\u30d4\u30fc\u5143\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u4e2d\u8eab\u3082\u5909\u308f\u3063\u3066\u3057\u307e\u3063\u305f\u2026\u300d\u3068\u3044\u3046\u3088\u3046\u306a\u7d4c\u9a13\u306f\u3042\u308a\u307e\u305b\u3093\u304b\uff1f \u305d\u306e\u3088\u3046\u306a […]<\/p>\n","protected":false},"author":16433,"featured_media":76566,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"swell_btn_cv_data":"","footnotes":""},"categories":[2352],"tags":[114],"class_list":["post-76564","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ruby-study","tag-ruby"],"acf":[],"yoast_head":"\n\u306f\u3058\u3081\u3066\u306eRuby\uff01dup\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9\u3092\u3084\u3055\u3057\u304f\u89e3\u8aac | \u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0<\/title>\n<meta name=\"description\" content=\"\u3053\u306e\u8a18\u4e8b\u3067\u306f\u300c \u306f\u3058\u3081\u3066\u306eRuby\uff01dup\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9\u3092\u3084\u3055\u3057\u304f\u89e3\u8aac \u300d\u306b\u3064\u3044\u3066\u3001\u8ab0\u3067\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3081\u3070\u3001\u3042\u306a\u305f\u306e\u60a9\u307f\u304c\u89e3\u6c7a\u3059\u308b\u3060\u3051\u3058\u3083\u306a\u304f\u3001\u65b0\u305f\u306a\u6c17\u4ed8\u304d\u3082\u767a\u898b\u3067\u304d\u308b\u3053\u3068\u3067\u3057\u3087\u3046\u3002\u304a\u60a9\u307f\u306e\u65b9\u306f\u305c\u3072\u3054\u4e00\u8aad\u304f\u3060\u3055\u3044\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sejuku.net\/blog\/76564\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u306f\u3058\u3081\u3066\u306eRuby\uff01dup\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9\u3092\u3084\u3055\u3057\u304f\u89e3\u8aac | \u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0\" \/>\n<meta property=\"og:description\" content=\"\u3053\u306e\u8a18\u4e8b\u3067\u306f\u300c \u306f\u3058\u3081\u3066\u306eRuby\uff01dup\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9\u3092\u3084\u3055\u3057\u304f\u89e3\u8aac \u300d\u306b\u3064\u3044\u3066\u3001\u8ab0\u3067\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3081\u3070\u3001\u3042\u306a\u305f\u306e\u60a9\u307f\u304c\u89e3\u6c7a\u3059\u308b\u3060\u3051\u3058\u3083\u306a\u304f\u3001\u65b0\u305f\u306a\u6c17\u4ed8\u304d\u3082\u767a\u898b\u3067\u304d\u308b\u3053\u3068\u3067\u3057\u3087\u3046\u3002\u304a\u60a9\u307f\u306e\u65b9\u306f\u305c\u3072\u3054\u4e00\u8aad\u304f\u3060\u3055\u3044\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.sejuku.net\/blog\/76564\" \/>\n<meta property=\"og:site_name\" content=\"\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/sejuku2013\" \/>\n<meta property=\"article:published_time\" content=\"2018-10-17T09:46:12+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-05-06T02:53:05+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/10\/ruby1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"700\" \/>\n\t<meta property=\"og:image:height\" content=\"400\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"\u4f8d\u30c6\u30c3\u30af\u7de8\u96c6\u90e8\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@samuraijuku\" \/>\n<meta name=\"twitter:site\" content=\"@samuraijuku\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/76564#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/76564\"},\"author\":{\"name\":\"\u4f8d\u30c6\u30c3\u30af\u7de8\u96c6\u90e8\",\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/#\\\/schema\\\/person\\\/d20c57b59dba15001519a8a671183095\"},\"headline\":\"\u306f\u3058\u3081\u3066\u306eRuby\uff01dup\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9\u3092\u3084\u3055\u3057\u304f\u89e3\u8aac\",\"datePublished\":\"2018-10-17T09:46:12+00:00\",\"dateModified\":\"2024-05-06T02:53:05+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/76564\"},\"wordCount\":256,\"publisher\":{\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/76564#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/wp-content\\\/uploads\\\/2018\\\/10\\\/ruby1.jpg\",\"keywords\":[\"ruby\"],\"articleSection\":[\"Ruby\u5b66\u7fd2\"],\"inLanguage\":\"ja\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/76564\",\"url\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/76564\",\"name\":\"\u306f\u3058\u3081\u3066\u306eRuby\uff01dup\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9\u3092\u3084\u3055\u3057\u304f\u89e3\u8aac | \u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/76564#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/76564#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/wp-content\\\/uploads\\\/2018\\\/10\\\/ruby1.jpg\",\"datePublished\":\"2018-10-17T09:46:12+00:00\",\"dateModified\":\"2024-05-06T02:53:05+00:00\",\"description\":\"\u3053\u306e\u8a18\u4e8b\u3067\u306f\u300c \u306f\u3058\u3081\u3066\u306eRuby\uff01dup\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9\u3092\u3084\u3055\u3057\u304f\u89e3\u8aac \u300d\u306b\u3064\u3044\u3066\u3001\u8ab0\u3067\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3081\u3070\u3001\u3042\u306a\u305f\u306e\u60a9\u307f\u304c\u89e3\u6c7a\u3059\u308b\u3060\u3051\u3058\u3083\u306a\u304f\u3001\u65b0\u305f\u306a\u6c17\u4ed8\u304d\u3082\u767a\u898b\u3067\u304d\u308b\u3053\u3068\u3067\u3057\u3087\u3046\u3002\u304a\u60a9\u307f\u306e\u65b9\u306f\u305c\u3072\u3054\u4e00\u8aad\u304f\u3060\u3055\u3044\u3002\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/76564#breadcrumb\"},\"inLanguage\":\"ja\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/76564\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/76564#primaryimage\",\"url\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/wp-content\\\/uploads\\\/2018\\\/10\\\/ruby1.jpg\",\"contentUrl\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/wp-content\\\/uploads\\\/2018\\\/10\\\/ruby1.jpg\",\"width\":700,\"height\":400},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/76564#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u306f\u3058\u3081\u3066\u306eRuby\uff01dup\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9\u3092\u3084\u3055\u3057\u304f\u89e3\u8aac\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/\",\"name\":\"\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0\",\"description\":\"\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u5b66\u7fd2\u306e\u3059\u3079\u3066\u304c\u30b3\u30b3\u306b\u3002\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ja\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/#organization\",\"name\":\"\u682a\u5f0f\u4f1a\u793eSAMURAI\",\"url\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/wp-content\\\/uploads\\\/2023\\\/07\\\/logo.png\",\"contentUrl\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/wp-content\\\/uploads\\\/2023\\\/07\\\/logo.png\",\"width\":600,\"height\":600,\"caption\":\"\u682a\u5f0f\u4f1a\u793eSAMURAI\"},\"image\":{\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/sejuku2013\",\"https:\\\/\\\/x.com\\\/samuraijuku\",\"https:\\\/\\\/www.youtube.com\\\/channel\\\/UCCFOQO5aDK0xXam4cUQXT8g\\\/featured\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/#\\\/schema\\\/person\\\/d20c57b59dba15001519a8a671183095\",\"name\":\"\u4f8d\u30c6\u30c3\u30af\u7de8\u96c6\u90e8\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/d91ed20aaa7f873a0f4f35586561303460c1e3864746dddb6ebe0fb093c1952d?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/d91ed20aaa7f873a0f4f35586561303460c1e3864746dddb6ebe0fb093c1952d?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/d91ed20aaa7f873a0f4f35586561303460c1e3864746dddb6ebe0fb093c1952d?s=96&d=mm&r=g\",\"caption\":\"\u4f8d\u30c6\u30c3\u30af\u7de8\u96c6\u90e8\"},\"description\":\"\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u587e\u306f\u300c\u4eba\u751f\u3092\u5909\u3048\u308b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u5b66\u7fd2\u300d\u3092\u30b3\u30f3\u30bb\u30f3\u30d7\u30c8\u306b\u3001\u904e\u53bb\u591a\u304f\u306e\u30d5\u30ea\u30fc\u30e9\u30f3\u30b9\u30a8\u30f3\u30b8\u30cb\u30a2\u3092\u8f29\u51fa\u3057\u305f\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30af\u30fc\u30eb\u3067\u3059\u3002\u4f8d\u30c6\u30c3\u30af\u7de8\u96c6\u90e8\u3067\u306f\u6280\u8853\u7cfb\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u4e2d\u5fc3\u306b\u6709\u7528\u306a\u60c5\u5831\u3092\u767a\u4fe1\u3057\u3066\u3044\u304d\u307e\u3059\u3002\",\"url\":\"https:\\\/\\\/www.sejuku.net\\\/blog\\\/author\\\/samurai-tech\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u306f\u3058\u3081\u3066\u306eRuby\uff01dup\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9\u3092\u3084\u3055\u3057\u304f\u89e3\u8aac | \u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0","description":"\u3053\u306e\u8a18\u4e8b\u3067\u306f\u300c \u306f\u3058\u3081\u3066\u306eRuby\uff01dup\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9\u3092\u3084\u3055\u3057\u304f\u89e3\u8aac \u300d\u306b\u3064\u3044\u3066\u3001\u8ab0\u3067\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3081\u3070\u3001\u3042\u306a\u305f\u306e\u60a9\u307f\u304c\u89e3\u6c7a\u3059\u308b\u3060\u3051\u3058\u3083\u306a\u304f\u3001\u65b0\u305f\u306a\u6c17\u4ed8\u304d\u3082\u767a\u898b\u3067\u304d\u308b\u3053\u3068\u3067\u3057\u3087\u3046\u3002\u304a\u60a9\u307f\u306e\u65b9\u306f\u305c\u3072\u3054\u4e00\u8aad\u304f\u3060\u3055\u3044\u3002","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.sejuku.net\/blog\/76564","og_locale":"ja_JP","og_type":"article","og_title":"\u306f\u3058\u3081\u3066\u306eRuby\uff01dup\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9\u3092\u3084\u3055\u3057\u304f\u89e3\u8aac | \u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0","og_description":"\u3053\u306e\u8a18\u4e8b\u3067\u306f\u300c \u306f\u3058\u3081\u3066\u306eRuby\uff01dup\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9\u3092\u3084\u3055\u3057\u304f\u89e3\u8aac \u300d\u306b\u3064\u3044\u3066\u3001\u8ab0\u3067\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3081\u3070\u3001\u3042\u306a\u305f\u306e\u60a9\u307f\u304c\u89e3\u6c7a\u3059\u308b\u3060\u3051\u3058\u3083\u306a\u304f\u3001\u65b0\u305f\u306a\u6c17\u4ed8\u304d\u3082\u767a\u898b\u3067\u304d\u308b\u3053\u3068\u3067\u3057\u3087\u3046\u3002\u304a\u60a9\u307f\u306e\u65b9\u306f\u305c\u3072\u3054\u4e00\u8aad\u304f\u3060\u3055\u3044\u3002","og_url":"https:\/\/www.sejuku.net\/blog\/76564","og_site_name":"\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0","article_publisher":"https:\/\/www.facebook.com\/sejuku2013","article_published_time":"2018-10-17T09:46:12+00:00","article_modified_time":"2024-05-06T02:53:05+00:00","og_image":[{"width":700,"height":400,"url":"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/10\/ruby1.jpg","type":"image\/jpeg"}],"author":"\u4f8d\u30c6\u30c3\u30af\u7de8\u96c6\u90e8","twitter_card":"summary_large_image","twitter_creator":"@samuraijuku","twitter_site":"@samuraijuku","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.sejuku.net\/blog\/76564#article","isPartOf":{"@id":"https:\/\/www.sejuku.net\/blog\/76564"},"author":{"name":"\u4f8d\u30c6\u30c3\u30af\u7de8\u96c6\u90e8","@id":"https:\/\/www.sejuku.net\/blog\/#\/schema\/person\/d20c57b59dba15001519a8a671183095"},"headline":"\u306f\u3058\u3081\u3066\u306eRuby\uff01dup\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9\u3092\u3084\u3055\u3057\u304f\u89e3\u8aac","datePublished":"2018-10-17T09:46:12+00:00","dateModified":"2024-05-06T02:53:05+00:00","mainEntityOfPage":{"@id":"https:\/\/www.sejuku.net\/blog\/76564"},"wordCount":256,"publisher":{"@id":"https:\/\/www.sejuku.net\/blog\/#organization"},"image":{"@id":"https:\/\/www.sejuku.net\/blog\/76564#primaryimage"},"thumbnailUrl":"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/10\/ruby1.jpg","keywords":["ruby"],"articleSection":["Ruby\u5b66\u7fd2"],"inLanguage":"ja"},{"@type":"WebPage","@id":"https:\/\/www.sejuku.net\/blog\/76564","url":"https:\/\/www.sejuku.net\/blog\/76564","name":"\u306f\u3058\u3081\u3066\u306eRuby\uff01dup\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9\u3092\u3084\u3055\u3057\u304f\u89e3\u8aac | \u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0","isPartOf":{"@id":"https:\/\/www.sejuku.net\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.sejuku.net\/blog\/76564#primaryimage"},"image":{"@id":"https:\/\/www.sejuku.net\/blog\/76564#primaryimage"},"thumbnailUrl":"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/10\/ruby1.jpg","datePublished":"2018-10-17T09:46:12+00:00","dateModified":"2024-05-06T02:53:05+00:00","description":"\u3053\u306e\u8a18\u4e8b\u3067\u306f\u300c \u306f\u3058\u3081\u3066\u306eRuby\uff01dup\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9\u3092\u3084\u3055\u3057\u304f\u89e3\u8aac \u300d\u306b\u3064\u3044\u3066\u3001\u8ab0\u3067\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3081\u3070\u3001\u3042\u306a\u305f\u306e\u60a9\u307f\u304c\u89e3\u6c7a\u3059\u308b\u3060\u3051\u3058\u3083\u306a\u304f\u3001\u65b0\u305f\u306a\u6c17\u4ed8\u304d\u3082\u767a\u898b\u3067\u304d\u308b\u3053\u3068\u3067\u3057\u3087\u3046\u3002\u304a\u60a9\u307f\u306e\u65b9\u306f\u305c\u3072\u3054\u4e00\u8aad\u304f\u3060\u3055\u3044\u3002","breadcrumb":{"@id":"https:\/\/www.sejuku.net\/blog\/76564#breadcrumb"},"inLanguage":"ja","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.sejuku.net\/blog\/76564"]}]},{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/www.sejuku.net\/blog\/76564#primaryimage","url":"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/10\/ruby1.jpg","contentUrl":"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/10\/ruby1.jpg","width":700,"height":400},{"@type":"BreadcrumbList","@id":"https:\/\/www.sejuku.net\/blog\/76564#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.sejuku.net\/blog\/"},{"@type":"ListItem","position":2,"name":"\u306f\u3058\u3081\u3066\u306eRuby\uff01dup\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9\u3092\u3084\u3055\u3057\u304f\u89e3\u8aac"}]},{"@type":"WebSite","@id":"https:\/\/www.sejuku.net\/blog\/#website","url":"https:\/\/www.sejuku.net\/blog\/","name":"\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0","description":"\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u5b66\u7fd2\u306e\u3059\u3079\u3066\u304c\u30b3\u30b3\u306b\u3002","publisher":{"@id":"https:\/\/www.sejuku.net\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.sejuku.net\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ja"},{"@type":"Organization","@id":"https:\/\/www.sejuku.net\/blog\/#organization","name":"\u682a\u5f0f\u4f1a\u793eSAMURAI","url":"https:\/\/www.sejuku.net\/blog\/","logo":{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/www.sejuku.net\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2023\/07\/logo.png","contentUrl":"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2023\/07\/logo.png","width":600,"height":600,"caption":"\u682a\u5f0f\u4f1a\u793eSAMURAI"},"image":{"@id":"https:\/\/www.sejuku.net\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/sejuku2013","https:\/\/x.com\/samuraijuku","https:\/\/www.youtube.com\/channel\/UCCFOQO5aDK0xXam4cUQXT8g\/featured"]},{"@type":"Person","@id":"https:\/\/www.sejuku.net\/blog\/#\/schema\/person\/d20c57b59dba15001519a8a671183095","name":"\u4f8d\u30c6\u30c3\u30af\u7de8\u96c6\u90e8","image":{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/secure.gravatar.com\/avatar\/d91ed20aaa7f873a0f4f35586561303460c1e3864746dddb6ebe0fb093c1952d?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/d91ed20aaa7f873a0f4f35586561303460c1e3864746dddb6ebe0fb093c1952d?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/d91ed20aaa7f873a0f4f35586561303460c1e3864746dddb6ebe0fb093c1952d?s=96&d=mm&r=g","caption":"\u4f8d\u30c6\u30c3\u30af\u7de8\u96c6\u90e8"},"description":"\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u587e\u306f\u300c\u4eba\u751f\u3092\u5909\u3048\u308b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u5b66\u7fd2\u300d\u3092\u30b3\u30f3\u30bb\u30f3\u30d7\u30c8\u306b\u3001\u904e\u53bb\u591a\u304f\u306e\u30d5\u30ea\u30fc\u30e9\u30f3\u30b9\u30a8\u30f3\u30b8\u30cb\u30a2\u3092\u8f29\u51fa\u3057\u305f\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30af\u30fc\u30eb\u3067\u3059\u3002\u4f8d\u30c6\u30c3\u30af\u7de8\u96c6\u90e8\u3067\u306f\u6280\u8853\u7cfb\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u4e2d\u5fc3\u306b\u6709\u7528\u306a\u60c5\u5831\u3092\u767a\u4fe1\u3057\u3066\u3044\u304d\u307e\u3059\u3002","url":"https:\/\/www.sejuku.net\/blog\/author\/samurai-tech"}]}},"_links":{"self":[{"href":"https:\/\/www.sejuku.net\/blog\/wp-json\/wp\/v2\/posts\/76564","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sejuku.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sejuku.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sejuku.net\/blog\/wp-json\/wp\/v2\/users\/16433"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sejuku.net\/blog\/wp-json\/wp\/v2\/comments?post=76564"}],"version-history":[{"count":0,"href":"https:\/\/www.sejuku.net\/blog\/wp-json\/wp\/v2\/posts\/76564\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sejuku.net\/blog\/wp-json\/wp\/v2\/media\/76566"}],"wp:attachment":[{"href":"https:\/\/www.sejuku.net\/blog\/wp-json\/wp\/v2\/media?parent=76564"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sejuku.net\/blog\/wp-json\/wp\/v2\/categories?post=76564"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sejuku.net\/blog\/wp-json\/wp\/v2\/tags?post=76564"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}