{"width":"100%","description":"Java\u306a\u3089 Collection.contains(Object) \u3001Ruby\u306a\u3089 ary.include?(val) \u3092\u4f7f\u3046\u3068\u601d\u3044\u307e\u3059\u304c\u3001Perl\u306e\u5834\u5408\u306f\u3069\u3046\u3084\u308b\u306e\u304c\u4e00\u822c\u7684\u306a\u306e\u3067\u3057\u305f\u3063\u3051\uff1f\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u66f8\u3044\u3066\u3044\u3066\u3001\u305d\u3046\u3044\u3046\u95a2\u6570\u304c\u3042\u308b\u306e\u304b\u3069\u3046\u304b\u601d\u3044\u51fa\u305b\u305a\u3001\u6642\u9593\u304c\u306a\u3044\u306e\u3067 defined\u95a2\u6570 \u3092\u4f7f\u3063\u3066\u3084\u3063\u3066\u3057\u307e\u3044\u307e\u3057\u305f\u3002 \u6ce8(2009.05.18): \u3053\u306e\u5834\u5408\u306f\u3001defined\u3067\u306f\u306a\u304f\u3001exists\u95a2\u6570\u3092\u4f7f\u3046\u3079\u304d\u3002 my %hash = map { $_, 1_ } (\"APPLE\", \"BEER\", \"CANDY\"); print \"BEER!\\n\" if defined $hash{\"BEE\u2026","type":"rich","height":"190","author_name":"argius","blog_url":"https://argius.hatenablog.jp/","categories":["Perl"],"provider_name":"Hatena Blog","version":"1.0","title":"\u3042\u308b\u8981\u7d20\u304c\u914d\u5217\u306b\u542b\u307e\u308c\u3066\u3044\u308b\u304b\u3092\u8abf\u3079\u308b\u4e00\u822c\u7684\u306a\u65b9\u6cd5\u306f\uff1f","provider_url":"https://hatena.blog","url":"https://argius.hatenablog.jp/entry/20080319/1205943974","blog_title":"argius note","published":"2008-03-19 01:26:14","image_url":null,"author_url":"https://blog.hatena.ne.jp/argius/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fargius.hatenablog.jp%2Fentry%2F20080319%2F1205943974\" title=\"\u3042\u308b\u8981\u7d20\u304c\u914d\u5217\u306b\u542b\u307e\u308c\u3066\u3044\u308b\u304b\u3092\u8abf\u3079\u308b\u4e00\u822c\u7684\u306a\u65b9\u6cd5\u306f\uff1f - argius note\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>"}