{"url":"https://takuya-1st.hatenablog.jp/entry/2013/10/15/012443","description":"String#grep\u306f\u7121\u304f\u306a\u3063\u305f\u3002 irb(main):008:0> \"\".grep NoMethodError: undefined method `grep' for \"\":String from (irb):8 from /usr/bin/irb:12:in `' String#grep \u306f\u7121\u304f\u306a\u3063\u305f\u306e\u3067Enum\u4f7f\u3046 \"\".lines.grep \u3068Enumerable \u3092\u631f\u307f\u307e\u3059\u3002 \u306a\u3093\u3067\u3001\u3053\u3093\u306a\u4e9b\u7d30\u306a\u4e92\u63db\u6027\u3082\u6b8b\u3057\u3066\u304f\u308c\u306a\u3044\u306e\u304b\u306a\u3041\u3068\u611a\u75f4\u308a\u305f\u3044 \u53c2\u8003 http://tumblr.graysky.org/post/7392311047/undefined-method-gr\u2026","blog_title":"\u305d\u308c\u30de\u30b0\u3067\uff01","blog_url":"https://takuya-1st.hatenablog.jp/","height":"190","title":"NoMethodError: undefined method `grep' for \"\":String","author_url":"https://blog.hatena.ne.jp/takuya_1st/","provider_url":"https://hatena.blog","categories":[],"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftakuya-1st.hatenablog.jp%2Fentry%2F2013%2F10%2F15%2F012443\" title=\"NoMethodError: undefined method `grep&#39; for &quot;&quot;:String - \u305d\u308c\u30de\u30b0\u3067\uff01\" 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","width":"100%","author_name":"takuya_1st","type":"rich","provider_name":"Hatena Blog","published":"2013-10-15 01:24:43","image_url":null}