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  <author_name>yuichi_katahira</author_name>
  <author_url>https://blog.hatena.ne.jp/yuichi_katahira/</author_url>
  <blog_title>仙台 Ruby Vim JavaScript フリーランスプログラマ</blog_title>
  <blog_url>https://katahirado.hatenablog.com/</blog_url>
  <categories>
    <anon>Scala</anon>
    <anon>Ruby</anon>
  </categories>
  <description>Scala scala&gt; val lst=List(1,2,3) lst: List[Int] = List(1, 2, 3) scala&gt; lst.mkString(&quot;|&quot;) res17: String = 1|2|3 scala&gt; lst.mkString(&quot;[&quot;, &quot;|&quot;, &quot;]&quot;) res18: String = [1|2|3] Ruby &gt;&gt; array=[1,2,3] =&gt; [1, 2, 3] &gt;&gt; array.join(&quot;|&quot;) =&gt; &quot;1|2|3&quot; &gt;&gt; &quot;[#{array.join(&quot;|&quot;)}]&quot; =&gt; &quot;[1|2|3]&quot; むむ。</description>
  <height>190</height>
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  <image_url></image_url>
  <provider_name>Hatena Blog</provider_name>
  <provider_url>https://hatena.blog</provider_url>
  <published>2008-12-09 09:12:25</published>
  <title>mkstring</title>
  <type>rich</type>
  <url>https://katahirado.hatenablog.com/entry/20081209/1228781545</url>
  <version>1.0</version>
  <width>100%</width>
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