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  <author_name>shuzo_kino</author_name>
  <author_url>https://blog.hatena.ne.jp/shuzo_kino/</author_url>
  <blog_title>Bye Bye Moore</blog_title>
  <blog_url>https://shuzo-kino.hateblo.jp/</blog_url>
  <categories>
    <anon>ruby</anon>
  </categories>
  <description>each_with_objectには、文字通りオブジェクトを持たせてeachをブンまわすことができます。 以前も扱った内容ですが……ちょっと理解が深まったので再度。 文字列 &gt; ('a'..'z').each_with_object(&quot;&quot;) {|i,a| a &lt;&lt; i.upcase} =&gt; &quot;ABCDEFGHIJKLMNOPQRSTUVWXYZ&quot; p (&quot;a&quot;..&quot;z&quot;).each_with_object(&quot;.png&quot;).map(&amp;:+) [&quot;a.png&quot;, &quot;b.png&quot;, &quot;c.png&quot;, ...(中略)... &quot;y.png&quot;, &quot;z.png&quot;] =&gt; [&quot;a.png&quot;, &quot;b.png&quot;,…</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>2013-11-21 18:37:20</published>
  <title>each_with_objectで遊ぶ</title>
  <type>rich</type>
  <url>https://shuzo-kino.hateblo.jp/entry/2013/11/21/183720</url>
  <version>1.0</version>
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