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  <author_name>koseki2</author_name>
  <author_url>https://blog.hatena.ne.jp/koseki2/</author_url>
  <blog_title>こせきの技術日記</blog_title>
  <blog_url>https://koseki.hatenablog.com/</blog_url>
  <categories>
    <anon>Ruby</anon>
  </categories>
  <description>http://ja.doukaku.org/46/lang/ruby/ http://www.google.com/codesearch?q=sort_by%7Brand%7D&amp;hl=ja array.sort_by{rand} sort_byはブロックを評価した結果を&lt;=&gt;で比較して昇順にソートする。</description>
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  <image_url></image_url>
  <provider_name>Hatena Blog</provider_name>
  <provider_url>https://hatena.blog</provider_url>
  <published>2008-06-17 00:00:01</published>
  <title> 1.8でArray.shuffle</title>
  <type>rich</type>
  <url>https://koseki.hatenablog.com/entry/20080617/RubyArrayShuffle</url>
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