{"blog_title":"Bye Bye Moore","image_url":null,"url":"https://shuzo-kino.hateblo.jp/entry/2014/05/26/233409","height":"190","author_name":"shuzo_kino","version":"1.0","title":"keep_if\u3067\u914d\u5217\u3092\u6383\u9664\u3059\u308b","author_url":"https://blog.hatena.ne.jp/shuzo_kino/","provider_name":"Hatena Blog","published":"2014-05-26 23:34:09","description":"keep_if\u30e1\u30bd\u30c3\u30c9\u306f\u30d6\u30ed\u30c3\u30af\u5185\u306e\u6761\u4ef6\u306b\u4e00\u81f4\u3057\u305f\u5185\u5bb9\u3092\u62bd\u51fa\u3057\u3066\u304f\u308c\u308b\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002 \u4f3c\u305f\u3082\u306e\u306b\u4e00\u81f4\u3057\u305f\u5185\u5bb9\u3092\u524a\u9664\u3059\u308bdelete_if\u304c\u3042\u308a\u307e\u3059\u3002 \u4f7f\u3044\u65b9 > (1..100).to_a.keep_if {|a| a % 9 == 0} => [9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99] > ('a'..'z').to_a.keep_if {|a| a =~ /[aiueo]/ } => [\"a\", \"e\", \"i\", \"o\", \"u\"] \u5165\u308a\u8fbc\u3093\u3060\u6761\u4ef6\u3092\u66f8\u304f\u4e8b\u3082\u53ef\u80fd\u3067\u3042\u308a\u307e\u3059\u3002 > [ nil, 'a', 'b', 'c', 'd' ].keep_\u2026","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fshuzo-kino.hateblo.jp%2Fentry%2F2014%2F05%2F26%2F233409\" title=\"keep_if\u3067\u914d\u5217\u3092\u6383\u9664\u3059\u308b - Bye Bye Moore\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://shuzo-kino.hateblo.jp/","provider_url":"https://hatena.blog","type":"rich","categories":["ruby"],"width":"100%"}