{"categories":["Ruby","Ruby2.7"],"type":"rich","blog_title":"tmtms \u306e\u30e1\u30e2","title":"Ruby 2.7 \u306e\u5909\u66f4\u70b9 - 2.7.0-rc1","image_url":null,"blog_url":"https://blog.tmtms.net/","provider_url":"https://hatena.blog","width":"100%","provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.tmtms.net%2Fentry%2F201912%2Fruby27-rc1\" title=\"Ruby 2.7 \u306e\u5909\u66f4\u70b9 - 2.7.0-rc1 - tmtms \u306e\u30e1\u30e2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","version":"1.0","author_url":"https://blog.hatena.ne.jp/tmtms/","url":"https://blog.tmtms.net/entry/201912/ruby27-rc1","published":"2019-12-18 00:00:00","height":"190","author_name":"tmtms","description":"Ruby 2.7 \u30a2\u30c9\u30d9\u30f3\u30c8\u30ab\u30ec\u30f3\u30c0\u30fc\u306e18\u65e5\u76ee\u306e\u8a18\u4e8b\u3067\u3059\u3002 qiita.com 12/17 \u306b Ruby 2.7.0-rc1 \u304c\u51fa\u305f\u306e\u3067\u30012.7.0-preview3 \u3068\u306e\u9055\u3044\u3092\u898b\u3066\u307f\u307e\u3059\u3002 \u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u3067\u4f8b\u5916 Regexp#match? \u306b nil \u3092\u6e21\u3057\u3066\u3082OK \u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u3067\u4f8b\u5916 preview3 \u6642\u70b9\u3067\u306f case \u306e\u4e2d\u4ee5\u5916\u3067\u4f7f\u308f\u308c\u305f\u5834\u5408\u306b\u771f\u507d\u5024\u3092\u8fd4\u3057\u307e\u3057\u305f\u304c\u3001\u5024\u3092\u8fd4\u3055\u306a\u304f\u306a\u308a\u3001\u30de\u30c3\u30c1\u3057\u306a\u304b\u3063\u305f\u5834\u5408\u306b case \u3068\u540c\u69d8\u306b\u4f8b\u5916\u304c\u767a\u751f\u3059\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002 {a: 123} in {k: _} #=> {:a=>123} (NoMatchingPatternError) \u5024\u3092\u2026"}