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  <author_name>lhiroki1205</author_name>
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  <blog_title>技術ブログ</blog_title>
  <blog_url>https://lhiroki1205.hatenablog.com/</blog_url>
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  <description>アロー関数 const add = function(a,b) { return a + b; } これをアロー関数に書き換える const add = ( a, b ) =&gt; { return a + b; } 省略するとこうもかける const add = ( a, b ) =&gt; a + b; const double = ( number ) =&gt; { return 2 * number }; 引数が一つの場合はこうもかける const double = (number) =&gt; 2 * number; const numbers = [1,2,3]; numbers.map(number…</description>
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  <provider_name>Hatena Blog</provider_name>
  <provider_url>https://hatena.blog</provider_url>
  <published>2020-02-23 16:35:27</published>
  <title>アロー関数</title>
  <type>rich</type>
  <url>https://lhiroki1205.hatenablog.com/entry/2020/02/23/163527</url>
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