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234.txt
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234.txt
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* [CODE(JS)@en[Date]] (JavaScript)
** 仕様書
[REFS[
- [9] [CITE@en-GB[ECMAScript Language Specification ECMA-262 6th Edition - DRAFT]] ([TIME[2013-03-22 20:28:39 +09:00]] 版) <http://people.mozilla.org/~jorendorff/es6-draft.html#sec-15.9>
]REFS]
** メモ
[1] [CITE[15.9 Date オブジェクト (Date Objects)]] ([TIME[2002-07-19 22:24:44 +09:00]] 版) <http://www2u.biglobe.ne.jp/~oz-07ams/prog/ecma262r3/15-9_Date_Objects.html>
[4] [CITE[B 互換性 (Compatibility)]] ([TIME[2002-07-19 22:24:55 +09:00]] 版) <http://www2u.biglobe.ne.jp/%7Eoz-07ams/prog/ecma262r3/B_Compatibility.html#section-B.2>
[2] [[閏秒]]には対応していません。
[SRC@en[[[ES3]] 15.9.1.1]]
[3] [CITE[mozilla mozilla/js/src/jsdate.c]] ([TIME[2008-10-28 04:24:06 +09:00]] 版) <http://mxr.mozilla.org/mozilla/source/js/src/jsdate.c>
[5] [CITE@en-us[Date - MDC]] ([TIME[2008-12-14 17:06:41 +09:00]] 版) <https://developer.mozilla.org/ja/Core_JavaScript_1.5_Reference/Global_Objects/Date>
** [CODE(JS)@en[Date]] 関数 (JavaScript)
[6] [CODE(JS)@en[[[Date]]]] を[[構築子]]としてではなく[[関数]]として呼ぶと、
[[ES3]] 的には引数で表される[[日時]]の [CODE(JS)@en[[[Date]]]] を文字列化したものが返ってくるはずですが、
[[Firefox]]、[[Chrome]]、[[Opera]]、[[WinIE8]] のいずれも引数を無視して現在日時を表す文字列を返すようです。
[TIME[2010-08-15T23:25:21.100Z]]
;; <javascript:Date(2001,3,5)>
* [CODE(IDL)@en[Date]] (WebIDL)
** 仕様書
[REFS[
- [11] '''[CITE[Web IDL (Second Edition)]] ([TIME[2013-05-04 05:46:05 +09:00]] 版) <http://dev.w3.org/2006/webapi/WebIDL/#idl-Date>'''
- [10] '''[CITE[Web IDL (Second Edition)]] ([TIME[2013-05-04 05:46:05 +09:00]] 版) <http://dev.w3.org/2006/webapi/WebIDL/#es-Date>'''
- [14] [CITE@en-US-x-hixie[HTML Standard]] ([TIME[2013-05-05 06:42:10 +09:00]] 版) <http://www.whatwg.org/specs/web-apps/current-work/#create-a-date-object>
]REFS]
** 文脈
[13]
[FIG(list)[
- [CODE(DOMm)@en[getStartDate]] ([CODE(DOMi)@en[HTMLMediaElement]])
- [CODE(DOMa)@en[valueAsDate]] ([CODE(DOMi)@en[HTMLInputElement]])
[HISTORY[
- [CODE(DOMa)@en[startDate]] ([CODE(DOMi)@en[HTMLMediaElement]])
]HISTORY]
]FIG]
** 演算
[15] [DFN[[RUBYB[[CODE(IDL)@en[Date]]オブジェクトを作成]@en[create a [CODE(IDL)@en[Date]] object]]]] [SRC[>>14]]
** 関連
[12] [CODE(DOMi)@en[[[DOMTimeStamp]]]]
[REFS[
- [7] [CITE@en[TimezonedDate]]
([[Robin Berjon]] 著, [TIME[2010-04-22 00:10:51 +09:00]] 版)
<http://lists.w3.org/Archives/Public/public-script-coord/2010AprJun/0000.html>
- [16] [CITE@en[Calendar API]] ([TIME[2012-10-02 20:46:33 +09:00]] 版) <http://dev.w3.org/2009/dap/calendar/#calendarevent-interface>
]REFS]
** メモ
[8] [CITE[''''''[''''''whatwg'''''']'''''' Timing API proposal for measuring intervals]]
( ([TIME[2011-07-14 21:12:44 +09:00]] 版))
<http://lists.whatwg.org/htdig.cgi/whatwg-whatwg.org/2011-July/032343.html>
[17] [CITE@en[Web Applications 1.0 r8094 Revert r8083, since it leads to weird behaviour worse than just returning a new object each time. (It seems this isn't implemented by anyone yet anyway.)]]
( ([TIME[2013-07-27 07:21:00 +09:00]] 版))
<http://html5.org/tools/web-apps-tracker?from=8093&to=8094>
[18] [CITE@en[Web Applications 1.0 r8113 Change startDate to a method to avoid the confusion of it being mutable.]]
( ([TIME[2013-08-01 06:29:00 +09:00]] 版))
<http://html5.org/tools/web-apps-tracker?from=8112&to=8113>
[19] [CITE[IRC logs: freenode / #whatwg / 20130731]]
( ([TIME[2013-08-01 20:10:23 +09:00]] 版))
<http://krijnhoetmer.nl/irc-logs/whatwg/20130731>
[20] [CITE@en[Bug 22824 – Remove Date from WebIDL]]
( ([TIME[2013-08-19 07:24:31 +09:00]] 版))
<https://www.w3.org/Bugs/Public/show_bug.cgi?id=22824>
[21] [CITE[Java8日付時刻APIの使いづらさと凄さ - きしだのはてな]]
( ([TIME[2013-09-17 06:57:18 +09:00]] 版))
<http://d.hatena.ne.jp/nowokay/20130917#1379376320>
[22] [CITE@en[File API | lastModified and Date attribute change]]
( ([[Arun Ranganathan]] 著, [TIME[2013-12-03 07:26:07 +09:00]] 版))
<http://lists.w3.org/Archives/Public/public-webapps/2013OctDec/0662.html>
[23] [CITE[HTML date format and Date.parse()]]
( ([TIME[2013-04-30 23:15:56 +09:00]] 版))
<https://mail.mozilla.org/pipermail/es-discuss/2013-April/030412.html>
[24] [CITE@en[Emotion Markup Language (EmotionML) 1.0]]
( ([TIME[2014-05-20 20:02:30 +09:00]] 版))
<http://www.w3.org/TR/emotionml/#s2.4.2.1>
[25] [CITE@en[RFC 3507 - Internet Content Adaptation Protocol (ICAP)]]
( ([TIME[2014-06-08 07:17:07 +09:00]] 版))
<http://tools.ietf.org/html/rfc3507#section-4.3.1>
[26] [CITE@en[Merge pull request #342 from martinthomson/issue324 · w3c/webrtc-pc@05909f7]]
([TIME[2015-10-24 13:20:07 +09:00]] 版)
<https://github.com/w3c/webrtc-pc/commit/05909f7d33c0dca829816c3ca47b93a593fb9fc6>
[27] [CITE@en[Close #279: stop using IDL Date so it can be removed from IDL · whatwg/html@260b66f]]
([TIME[2015-10-26 11:40:59 +09:00]] 版)
<https://github.com/whatwg/html/commit/260b66f352b34143c29bf3b2f5a17f9b5c34c1e1>
[28] [CITE@en[22824 – Remove Date from WebIDL]]
([TIME[2015-10-27 12:58:07 +09:00]] 版)
<https://www.w3.org/Bugs/Public/show_bug.cgi?id=22824>