{"title":"Ruby\u306enil\u3092\u8fd4\u3055\u306a\u3044CSV\u30e9\u30a4\u30d6\u30e9\u30ea","height":"190","url":"https://blog.tmtms.net/entry/2017/08/22/rightcsv","published":"2017-08-22 19:29:43","width":"100%","categories":["Ruby"],"version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.tmtms.net%2Fentry%2F2017%2F08%2F22%2Frightcsv\" title=\"Ruby\u306enil\u3092\u8fd4\u3055\u306a\u3044CSV\u30e9\u30a4\u30d6\u30e9\u30ea - 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>","author_url":"https://blog.hatena.ne.jp/tmtms/","author_name":"tmtms","blog_url":"https://blog.tmtms.net/","blog_title":"tmtms \u306e\u30e1\u30e2","description":"Ruby\u306eCSV\u30e9\u30a4\u30d6\u30e9\u30ea\u306f\u4f55\u6545\u304b\u7a7a\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u3064\u3044\u3066nil\u3092\u8fd4\u3057\u307e\u3059(\u300c\"\u300d\u3067\u62ec\u3089\u308c\u3066\u3044\u308b\u3068\u7a7a\u6587\u5b57\u5217\u3092\u8fd4\u3057\u307e\u3059)\u3002 require 'csv' CSV.parse('a,,\"\",\"1,2\"') do |row| p row end #=> [\"a\", nil, \"\", \"1,2\"] \u306a\u306e\u3067\u305d\u308c\u3092\u8003\u616e\u3057\u3066\u3044\u306a\u3044\u3068 NoMethodError(\u3044\u308f\u3086\u308b\u306c\u308b\u307d)\u304c\u8d77\u304d\u305f\u308a\u3057\u3066\u9177\u3044\u76ee\u306b\u3042\u3063\u305f\u308a\u3057\u307e\u3059 (><) require 'csv' CSV.parse('a,,\"\",\"1,2\"') do |row| row.each do |col| p col.length end end #=> 1 #=>\u2026","type":"rich","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","image_url":null}