{"author_name":"craftone","provider_url":"https://hatena.blog","published":"2008-05-07 23:47:41","version":"1.0","categories":["Ruby"],"description":"Ruby\u306f\u30cf\u30c3\u30b7\u30e5\u306e\u30cd\u30b9\u30c8\u304c\u7c21\u5358\u306b\u306f\u3067\u304d\u306a\u3044\u306e\u3067\u3001\u30e1\u30bd\u30c3\u30c9\u5b9a\u7fa9\u3057\u306a\u3044\u3068\u99c4\u76ee\u3063\u307d\u3044\u3002 #counter\u306b\u5165\u3063\u3066\u3044\u308bHash\u914d\u4e0b\u306b\u3001path\u3067\u793a\u3055\u308c\u305fHash\u306e\u30cd\u30b9\u30c8\u3092\u4f5c\u6210\u3059\u308b\u3002 #\u672b\u5c3e\u306eHash\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306fHash.new(0)\u3068\u306a\u3063\u3066\u3001\u30ab\u30a6\u30f3\u30bf\u306b\u4f7f\u3046\u3002 #\u623b\u308a\u5024\u306f\u672b\u5c3e\u306e\u30ab\u30a6\u30f3\u30bf\u7528Hash\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\uff08Hash.new(0)\u306e\u3082\u306e\uff09 def make_counter(counter, path) head, *tail = path if tail.empty? counter[head] ||= Hash.new(0) else counter[head] ||= Hash.new make\u2026","image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fcraftone.hatenablog.com%2Fentry%2F20080507%2F1210171661\" title=\"\u30cf\u30c3\u30b7\u30e5\u3092\u30cd\u30b9\u30c8\u3057\u3066\u30ab\u30a6\u30f3\u30bf\u3092\u4f5c\u308b\u3068\u304d - craftone\u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","type":"rich","width":"100%","blog_title":"craftone\u306e\u65e5\u8a18","author_url":"https://blog.hatena.ne.jp/craftone/","blog_url":"https://craftone.hatenablog.com/","url":"https://craftone.hatenablog.com/entry/20080507/1210171661","title":"\u30cf\u30c3\u30b7\u30e5\u3092\u30cd\u30b9\u30c8\u3057\u3066\u30ab\u30a6\u30f3\u30bf\u3092\u4f5c\u308b\u3068\u304d","height":"190"}