{"published":"2020-12-08 00:03:59","width":"100%","provider_name":"Hatena Blog","image_url":null,"description":"\u4e00\u4eba bugs.ruby Advent Calendar 2020 8\u65e5\u76ee\u306e\u8a18\u4e8b\u306b\u306a\u308a\u307e\u3059\u3002 [Bug #17058] Array#delete_if doesn't change array instantly \u3055\u3066 Array#delete_if \u3067\u6761\u4ef6\u306b\u3042\u3063\u305f\u8981\u7d20\u3092\u524a\u9664\u3059\u308b\u4e8b\u304c\u3067\u304d\u307e\u3059\u3002 a = [1, 2, 3, 4, 5, 6] # \u5076\u6570\u3092\u524a\u9664\u3059\u308b a.delete_if { |it| it.even? } p a # => [1, 3, 5] \u3053\u306e\u30e1\u30bd\u30c3\u30c9\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3067\u306f\u300e\u30d6\u30ed\u30c3\u30af\u304c\u547c\u3070\u308c\u308b\u305f\u3073\u306b\u30ec\u30b7\u30fc\u30d0\u306b\u5373\u5ea7\u306b\u53cd\u6620\u3055\u308c\u308b\u300f\u3068\u66f8\u304b\u308c\u3066\u3044\u307e\u3059\u3002 \u3057\u304b\u3057\u3001\u5b9f\u969b\u306e\u6319\u52d5\u306f #delete\u2026","height":"190","author_url":"https://blog.hatena.ne.jp/osyo-manga/","url":"https://secret-garden.hatenablog.com/entry/2020/12/08/000359","blog_title":"Secret Garden(Instrumental)","author_name":"osyo-manga","categories":["AdventCalendar","Ruby","bugs.ruby"],"version":"1.0","title":"\u3010\u4e00\u4eba bugs.ruby Advent Calendar 2020\u3011[Bug #17058] Array#delete_if doesn't change array instantly\u30108\u65e5\u76ee\u3011","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsecret-garden.hatenablog.com%2Fentry%2F2020%2F12%2F08%2F000359\" title=\"\u3010\u4e00\u4eba bugs.ruby Advent Calendar 2020\u3011[Bug #17058] Array#delete_if doesn&#39;t change array instantly\u30108\u65e5\u76ee\u3011 - 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>","provider_url":"https://hatena.blog","type":"rich","blog_url":"https://secret-garden.hatenablog.com/"}