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  <author_name>osyo-manga</author_name>
  <author_url>https://blog.hatena.ne.jp/osyo-manga/</author_url>
  <blog_title>Secret Garden(Instrumental)</blog_title>
  <blog_url>https://secret-garden.hatenablog.com/</blog_url>
  <categories>
    <anon>Ruby</anon>
  </categories>
  <description>『[1,2,16].map(&amp;:to_s(16)) みたいにかきたいよねー』というやつ。 class Symbol def call *args, &amp;block proc { |myself| myself.send self, *args, &amp;block } end end p [1, 2, 16].map(&amp;:to_s.(16)) # =&gt; [&quot;1&quot;, &quot;2&quot;, &quot;10&quot;] #call を定義してこういう風に書くことはできるけどもさて。 [おまけ] iolite を使用するとこういう風に書くことは出来ます。 require &quot;iolite&quot; include Iolite::Placehol…</description>
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  <provider_name>Hatena Blog</provider_name>
  <provider_url>https://hatena.blog</provider_url>
  <published>2016-10-06 00:00:00</published>
  <title>Ruby の Symbol#to_proc に引数を渡す拡張</title>
  <type>rich</type>
  <url>https://secret-garden.hatenablog.com/entry/2016/10/06/000000</url>
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