{"author_url":"https://blog.hatena.ne.jp/shikaku/","categories":["Ruby"],"type":"rich","height":"190","width":"100%","version":"1.0","published":"2010-01-20 00:00:05","title":"\u6587\u5b57\u306e\u691c\u7d22","image_url":null,"author_name":"shikaku","url":"https://blog.systemjp.net/entry/20100120/p2","provider_name":"Hatena Blog","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.systemjp.net%2Fentry%2F20100120%2Fp2\" title=\"\u6587\u5b57\u306e\u691c\u7d22 - shikaku&#39;s blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","description":"\u6587\u5b57\u5217\u4e2d\u306b\u542b\u307e\u308c\u3066\u3044\u308b\u4efb\u610f\u6587\u5b57\u5217\u306e\u4f4d\u7f6e\u3092\u6c42\u3081\u308b\u7121\u304b\u3063\u305f\u3089nil\u304c\u8fd4\u308b s = \"Apple Banana Apple Orange\" p s.index(\"Apple\") #=> 0 p s.index(\"Banana\") #=> 6 p s.index(\"Apple\", 6) #=> 13 p s.rindex(\"Apple\") #=> 13 p s.rindex(\"Apple\", 6) #>= 0\u30cd\u30bf\u5143 http://www.namaraii.com/rubytips/?%CA%B8%BB%FA%CE%F3#l24","blog_title":"shikaku's blog","blog_url":"https://blog.systemjp.net/"}