<html xmlns="http://www.w3.org/1999/xhtml"><head></head><body><section><h1>記号 <code>∞</code></h1><figure class="short list data"><figcaption><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="11" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[11]</anchor-end> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">文字</anchor></figcaption><dl><dt><f xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">文字</f></dt><dd><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">∞</anchor></dd><dt><f xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">字形類似</f></dt><dd><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">oo</anchor></dd><dt><f xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">字形類似</f></dt><dd><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">∽</anchor></dd><dt><f xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">四半回転類似</f></dt><dd><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">8</anchor></dd></dl></figure></section><section><h1>値 <code class="JS" xml:lang="en">Infinity</code> (JavaScript)</h1><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="1" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[1]</anchor-end></p><blockquote><p>The <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">primitive value</anchor> <dfn><code class="JS" xml:lang="en">Infinity</code></dfn> represents the <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">positive infinite number value</anchor>.
This <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">value</anchor> is a <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">member</anchor> of the <code class="JS" xml:lang="en"><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">Number</anchor></code> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">type</anchor>.</p></blockquote><comment-p xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><cite xmlns="http://www.w3.org/1999/xhtml">ECMAScript Language Specification (HTML version)</cite> (<time xmlns="http://www.w3.org/1999/xhtml">2009-04-03 04:43:48 +09:00</time> 版) <anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="http://bclary.com/2004/11/07/#a-4.3.22">http://bclary.com/2004/11/07/#a-4.3.22</anchor-external></comment-p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="2" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[2]</anchor-end><dl><dt>名前</dt><dd><code class="JS" xml:lang="en"><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">Infinity</anchor></code></dd><dt>型</dt><dd><code class="JS" xml:lang="en"><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">Number</anchor></code></dd></dl></p></section><section><h1>Perl</h1><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="3" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[3]</anchor-end> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">文字列化</anchor>すると Perl 5.22 では <code>Inf</code> ですが、
Perl 5.14 では <code>inf</code> でした。</p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="7" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[7]</anchor-end> <code>pack 'L', 0+'Inf'</code> は 5.22 以降は<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">例外</anchor>を<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">投げ</anchor>ます。
以前は <n xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">-1</n> 扱いでした。</p></section><section><h1>メモ</h1><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="4" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[4]</anchor-end> <cite xml:lang="en">Inline the infinite/NaN argument handling in 2d canvas methods</cite>
(<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">zcorpan</anchor>著, <time>2016-09-30 22:38:34 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://github.com/whatwg/html/commit/6f2c0e884e3a7974637514b04e62f7352b6e405d">https://github.com/whatwg/html/commit/6f2c0e884e3a7974637514b04e62f7352b6e405d</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="5" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[5]</anchor-end> <cite xml:lang="ja">芸名に句読点が含まれる芸能人の一覧 - Wikipedia</cite>
(<time>2016-12-31 17:32:04 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://ja.wikipedia.org/wiki/%E8%8A%B8%E5%90%8D%E3%81%AB%E5%8F%A5%E8%AA%AD%E7%82%B9%E3%81%8C%E5%90%AB%E3%81%BE%E3%82%8C%E3%82%8B%E8%8A%B8%E8%83%BD%E4%BA%BA%E3%81%AE%E4%B8%80%E8%A6%A7">https://ja.wikipedia.org/wiki/%E8%8A%B8%E5%90%8D%E3%81%AB%E5%8F%A5%E8%AA%AD%E7%82%B9%E3%81%8C%E5%90%AB%E3%81%BE%E3%82%8C%E3%82%8B%E8%8A%B8%E8%83%BD%E4%BA%BA%E3%81%AE%E4%B8%80%E8%A6%A7</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="6" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[6]</anchor-end> <cite xml:lang="EN">XQuery 3.1: An XML Query Language</cite>
(<time>2017-03-20 09:23:33 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://www.w3.org/TR/2017/REC-xquery-31-20170321/#id-static-decimal-format-infinity">https://www.w3.org/TR/2017/REC-xquery-31-20170321/#id-static-decimal-format-infinity</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="8" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[8]</anchor-end> <cite xml:lang="EN">XML Path Language (XPath) 3.1</cite>
(<time>2017-03-20 09:18:04 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://www.w3.org/TR/2017/REC-xpath-31-20170321/#id-static-decimal-format-infinity">https://www.w3.org/TR/2017/REC-xpath-31-20170321/#id-static-decimal-format-infinity</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="9" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[9]</anchor-end> <cite xml:lang="ja">TVアニメ「SK∞ エスケーエイト」公式サイト</cite>
(<time>2020-11-10T11:39:17.000Z</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://sk8-project.com/">https://sk8-project.com/</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="10" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[10]</anchor-end> <cite>【ゲスト:橘杏咲さん】利根健太朗・緒方佑奈の検証TV! 第55回【生放送】 - 2023/6/8(木) 21:00開始 - ニコニコ生放送</cite>
(<time>2023-06-09 19:39:49 +09:00</time>)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://live.nicovideo.jp/watch/lv341592265">https://live.nicovideo.jp/watch/lv341592265</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="12" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[12]</anchor-end> 
<cite xml:lang="ja">全米に1000人以上いる「Infinity」さん、名前がjQueryで適切に処理されない恐れ | スラド デベロッパー</cite>, <time>2024-01-24T08:34:22.000Z</time> <anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://developers.srad.jp/story/18/05/02/0644207/">https://developers.srad.jp/story/18/05/02/0644207/</anchor-external></p></section></body></html>