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  <author_name>gothedistance</author_name>
  <author_url>https://blog.hatena.ne.jp/gothedistance/</author_url>
  <blog_title>Life is Really Short, Have Your Life!!</blog_title>
  <blog_url>https://aroundthedistance.hatenadiary.jp/</blog_url>
  <categories>
    <anon>Scala</anon>
  </categories>
  <description>これはわかりやすかった。 scala&gt; val x = &quot;Hello,World&quot; x: String = Hello,World scala&gt; val x1 = x.reverse x1: String = dlroW,olleH scala&gt; val x2 = x.reverse x2: String = dlroW,olleH x1とx2に変化はない。常に与えられた引数に対して等しい結果を返す。でも、StringBuilderになると話が変わってくる。 scala&gt; val sb = new StringBuilder(&quot;Hello&quot;) sb: StringBuilder = Hello…</description>
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  <provider_name>Hatena Blog</provider_name>
  <provider_url>https://hatena.blog</provider_url>
  <published>2015-06-16 20:02:31</published>
  <title>Scalaにおける参照透過性がよく分かるサンプル</title>
  <type>rich</type>
  <url>https://aroundthedistance.hatenadiary.jp/entry/2015/06/16/200231</url>
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