<html xmlns="http://www.w3.org/1999/xhtml"><head></head><body><section><h1>仕様書</h1><refs xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:"><ul xmlns="http://www.w3.org/1999/xhtml"><li><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="14" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[14]</anchor-end> <cite xml:lang="en">High Resolution Time Level 2</cite> (<time>2016-02-26 04:49:50 +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://w3c.github.io/hr-time/#h-the-performance-interface">https://w3c.github.io/hr-time/#h-the-performance-interface</anchor-external></li><li><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="22" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[22]</anchor-end> <cite xml:lang="en">High Resolution Time Level 2</cite> (<time>2016-02-26 04:49:50 +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://w3c.github.io/hr-time/#h-the-performance-attribute">https://w3c.github.io/hr-time/#h-the-performance-attribute</anchor-external></li><li><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">Performance Timeline</cite> (<time>2015-04-30 06:08:59 +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://w3c.github.io/performance-timeline/">http://w3c.github.io/performance-timeline/</anchor-external></li><li><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> <cite xml:lang="en">Navigation Timing 2</cite> (<time>2015-04-23 03:49:10 +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="https://w3c.github.io/navigation-timing/">https://w3c.github.io/navigation-timing/</anchor-external></li><li><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 xml:lang="en">Resource Timing</cite> (<time>2015-04-30 06:03:58 +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="https://w3c.github.io/resource-timing/">https://w3c.github.io/resource-timing/</anchor-external></li><li><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="en">Frame Timing</cite> (<time>2015-04-24 22:26:35 +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="https://w3c.github.io/frame-timing/">https://w3c.github.io/frame-timing/</anchor-external></li></ul></refs></section><section><h1>文脈</h1><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="15" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[15]</anchor-end> <code class="DOMi" xml:lang="en">Performance</code> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">インターフェイス</anchor>は、
<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">文書環境</anchor>と<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">ワーカー環境</anchor>に<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">晒され</anchor>ています <src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="14" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;14</anchor-internal></src>。</p></section><section><h1>状態</h1><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="26" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[26]</anchor-end> <code class="DOMi" xml:lang="en">Performance</code> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">インターフェイス</anchor>は、次の状態を持ちます。<figure class="list members"><dl><dt><f xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">大域オブジェクト</f></dt><dd>関連付けられた<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">大域オブジェクト</anchor>です。</dd></dl></figure></p></section><section><h1>メンバー</h1><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="16" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[16]</anchor-end> <code class="DOMi" xml:lang="en">Performance</code> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">インターフェイス</anchor>は、
<code class="DOMi" xml:lang="en">EventTarget</code> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">インターフェイス</anchor>を<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">継承</anchor>しています <src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="14" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;14</anchor-internal></src>。</p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="17" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[17]</anchor-end> 他に次の<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">メンバー</anchor>があります。<figure class="list short"><ul><li><code class="DOMm" xml:lang="en">now<title xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:">Performance.now</title></code></li><li><code class="DOMm" xml:lang="en">translateTime</code></li><li><code class="DOMm" xml:lang="en">toJSON</code></li></ul></figure></p></section><section><h1><code class="DOMi" xml:lang="en">WindowOrWorkerGlobalScope</code> インターフェイス <code class="DOMa" xml:lang="en">performance</code> 属性</h1><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="23" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[23]</anchor-end> <code class="DOMi" xml:lang="en">WindowOrWorkerGlobalScope</code> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">インターフェイス</anchor>の
<dfn><code class="DOMa" xml:lang="en">performance</code></dfn> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">IDL属性</anchor> <src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="22" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;22</anchor-internal></src> の<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">取得器</anchor>は、
次のようにしなければ<MUST xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">なりません</MUST>。<figure class="steps"><ol><li><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="24" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[24]</anchor-end> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">文脈オブジェクト</anchor>の <f xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:"><code xmlns="http://www.w3.org/1999/xhtml" class="DOMi" xml:lang="en">Performance</code></f> を返します。</li></ol></figure></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="25" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[25]</anchor-end> <code class="DOMi" xml:lang="en">WindowOrWorkerGlobalScope</code> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">オブジェクト</anchor>は、
<dfn><f xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:"><code xmlns="http://www.w3.org/1999/xhtml" class="DOMi" xml:lang="en">Performance</code></f></dfn> を持ちます。
これは初期化時に新たな <code class="DOMi" xml:lang="en">Performance</code> に設定され、
以後変更されません。その<f xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">大域オブジェクト</f>は、
<code class="DOMi" xml:lang="en">WindowOrWorkerGlobalScope</code> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">オブジェクト</anchor>に設定されています。</p><history xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:"><p xmlns="http://www.w3.org/1999/xhtml"><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="27" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[27]</anchor-end> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">仕様書</anchor>ではこれは <dfn><code class="DOMi" xml:lang="en">GlobalPerformance</code></dfn>
<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">インターフェイス</anchor>と呼ばれています。</p></history></section><section><h1>歴史</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> <cite xml:lang="en">Navigation Timing</cite>
( (<time>2012-12-13 06:51:35 +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://www.w3.org/TR/2012/REC-navigation-timing-20121217/#sec-window.performance-attribute">http://www.w3.org/TR/2012/REC-navigation-timing-20121217/#sec-window.performance-attribute</anchor-external></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> <cite xml:lang="en">User Timing</cite>
( (<time>2013-12-16 22:17:37 +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="https://dvcs.w3.org/hg/webperf/raw-file/default/specs/UserTiming/Overview.html#extensions-performance-interface">https://dvcs.w3.org/hg/webperf/raw-file/default/specs/UserTiming/Overview.html#extensions-performance-interface</anchor-external></p><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> <cite xml:lang="en">Performance Timeline</cite>
( (<time>2013-12-16 22:27:38 +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="https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/PerformanceTimeline/Overview.html#sec-window.performance-attribute">https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/PerformanceTimeline/Overview.html#sec-window.performance-attribute</anchor-external></p><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">Frame Timing</cite>
( (<time>2015-01-21 00:48:47 +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://www.w3.org/TR/2015/WD-frame-timing-20150120/">http://www.w3.org/TR/2015/WD-frame-timing-20150120/</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="en">Navigation Timing 2</cite>
( (<time>2015-01-20 23:22:52 +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://www.w3.org/TR/2015/WD-navigation-timing-2-20150120/">http://www.w3.org/TR/2015/WD-navigation-timing-2-20150120/</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">Resource Timing</cite>
(<time>2015-04-23 06:01:55 +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://www.w3.org/TR/2015/WD-resource-timing-20150422/">http://www.w3.org/TR/2015/WD-resource-timing-20150422/</anchor-external></p><p><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> <cite xml:lang="en">Re: Firefox and User Timing API in workers</cite>
(<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">Ilya Grigorik</anchor> 著, <time>2015-05-23 05:54:35 +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="https://lists.w3.org/Archives/Public/public-web-perf/2015May/0014.html">https://lists.w3.org/Archives/Public/public-web-perf/2015May/0014.html</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="en"><strong></strong>[<strong></strong>navigation-timing<strong></strong>]<strong></strong> domLoading is deprecated</cite>
(<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">Philippe Le Hegaret</anchor> 著, <time>2015-05-28 07:34:19 +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="https://lists.w3.org/Archives/Public/public-web-perf/2015May/0030.html">https://lists.w3.org/Archives/Public/public-web-perf/2015May/0030.html</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="13" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[13]</anchor-end> <cite xml:lang="en">Navigation Timing 2</cite>
(<time>2015-05-28 07:48:26 +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://www.w3.org/TR/2015/WD-navigation-timing-2-20150527/">http://www.w3.org/TR/2015/WD-navigation-timing-2-20150527/</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="18" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[18]</anchor-end> <cite xml:lang="en">Performance Timeline</cite>
( (<time>2011-09-01 00:58:23 +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://www.w3.org/TR/2011/WD-performance-timeline-20110901/">http://www.w3.org/TR/2011/WD-performance-timeline-20110901/</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="19" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[19]</anchor-end> <cite xml:lang="en">Error Logging</cite>
( (<time>2013-05-07 00:02:25 +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="https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/ErrorLogging/Overview.html">https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/ErrorLogging/Overview.html</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="20" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[20]</anchor-end> <cite xml:lang="en">High Resolution Time Level 2</cite>
( (<time>2013-11-27 03:50:20 +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://www.w3.org/TR/2013/WD-hr-time-2-20131203/">http://www.w3.org/TR/2013/WD-hr-time-2-20131203/</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="21" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[21]</anchor-end> <cite xml:lang="en">Navigation Timing</cite>
( (<time>2012-12-13 06:51:35 +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://www.w3.org/TR/2012/REC-navigation-timing-20121217/#sec-window.performance-attribute">http://www.w3.org/TR/2012/REC-navigation-timing-20121217/#sec-window.performance-attribute</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="28" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[28]</anchor-end> <cite xml:lang="en">define toJSON serializer</cite>
(<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">igrigorik</anchor>著, <time>2017-07-22 03:13:35 +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/w3c/hr-time/commit/7d8d194259e2c321f945b7ac7dfd3393c5c20b41">https://github.com/w3c/hr-time/commit/7d8d194259e2c321f945b7ac7dfd3393c5c20b41</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="29" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[29]</anchor-end> <cite xml:lang="en">WebIDL serializer has been deprecated in favor of toJSON operation · Issue #49 · w3c/hr-time</cite>
(<time>2017-08-19 18:09:59 +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/w3c/hr-time/issues/49">https://github.com/w3c/hr-time/issues/49</anchor-external></p></section></body></html>