{"blog_title":"\u306c\u3044\u3050\u308b\u307f\u30e9\u30a4\u30d5\uff1f","version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmickey24.hatenablog.com%2Fentry%2F20110227%2Fruby_array_select_reject_partition\" title=\"Ruby\u3067\u914d\u5217\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3059\u8981\u7d20\u3092\u5217\u6319\u3059\u308bor\u53d6\u308a\u9664\u304f(select, reject, partition) - \u306c\u3044\u3050\u308b\u307f\u30e9\u30a4\u30d5\uff1f\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","width":"100%","type":"rich","provider_name":"Hatena Blog","provider_url":"https://hatena.blog","published":"2011-02-27 00:00:00","title":"Ruby\u3067\u914d\u5217\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3059\u8981\u7d20\u3092\u5217\u6319\u3059\u308bor\u53d6\u308a\u9664\u304f(select, reject, partition)","url":"https://mickey24.hatenablog.com/entry/20110227/ruby_array_select_reject_partition","blog_url":"https://mickey24.hatenablog.com/","height":"190","categories":["Ruby"],"image_url":null,"author_name":"mickey24","description":"Array\u306e\u4ee5\u4e0b\u306e\u30e1\u30bd\u30c3\u30c9\u306b\u3064\u3044\u3066\u307e\u3068\u3081\u3066\u307f\u305f\uff0e select (select!) reject (reject!) partition select : \u6761\u4ef6\u3092\u6e80\u305f\u3059\u8981\u7d20\u3092\u5217\u6319 \u6761\u4ef6\u3092\u6e80\u305f\u3059\u8981\u7d20\u3092\u5217\u6319\u3059\u308b\u306b\u306fselect\u3092\u4f7f\u3046\uff0eselect\u306f\u30d6\u30ed\u30c3\u30af\u306e\u8a55\u4fa1\u7d50\u679c\u304ctrue\u3068\u306a\u308b\u8981\u7d20\u304b\u3089\u306a\u308b\u914d\u5217\u3092\u8fd4\u3059\uff0e\u975e\u7834\u58ca\u7684\uff0e a = [1, 3, 4, 7, 9, 13] a.select{|e| e % 3 == 0} #=> [3, 9] \u7834\u58ca\u7684\u30e1\u30bd\u30c3\u30c9\u3042\u308a\uff0e\u305f\u3060\u3057Ruby 1.9.2\u4ee5\u964d\u304c\u5fc5\u8981\uff0e a.select!{|e| e % 3 == 0} reject : \u6761\u4ef6\u3092\u6e80\u305f\u3059\u8981\u7d20\u3092\u524a\u9664 \u6761\u4ef6\u3092\u6e80\u305f\u3059\u2026","author_url":"https://blog.hatena.ne.jp/mickey24/"}