歴史

[1] getAttribute は属性が指定されていない時空文字列を返すはずだが、 Webブラウザは null を返す。

Internet Explorer, Firefox, Safari, Konquerer, iCab は null を返し、 Opera は現在空文字列を返すものの、修正される見込みだそうで。

[dom3core] getAttribute mid:op.s0gislje64w2qv@id-c0020.q42.local, http://permalink.gmane.org/gmane.comp.web.dom.general/1312

(名無しさん 2005-11-25 07:44:46 +00:00)

[3] WICD Mobile 1.0 ( (2010-08-17 16:50:39 +09:00 版)) http://www.w3.org/TR/WICDMobile/#dom-core-subset-ext

[2] getAttribute(attr) != null considered harmful - Anne’s Weblog about Markup & Style http://annevankesteren.nl/2005/12/null (名無しさん 2005-12-03 03:47:52 +00:00)

[4] Restore getAttributeNS() · whatwg/dom@ce331fd (2016-03-30 11:14:24 +09:00 版) https://github.com/whatwg/dom/commit/ce331fdca4ac2f5ec17ce71ce0df29ee7d90d88c

[5] Make the DOMTokenList creation steps use "get an attribute value" (TRowbotham著, 2018-08-09 00:26:22 +09:00) https://github.com/whatwg/dom/commit/28cdb47e557c814fcca60759f4cce43e9c0e9a47

[6] "When a DOMTokenList object is created, then: ..." · Issue #666 · whatwg/dom (2018-08-14 23:48:57 +09:00) https://github.com/whatwg/dom/issues/666

[7] Make the DOMTokenList creation steps use "get an attribute value" by TRowbotham · Pull Request #673 · whatwg/dom (2018-08-14 23:49:06 +09:00) https://github.com/whatwg/dom/pull/673

[8] Editorial: embrace that attributes are objects (annevk, 2019-12-12 02:40:19 +09:00, 2022-01-27T11:52:13.000Z) https://github.com/whatwg/dom/commit/0038d097f5cad2a7ffdbe75c234b58960aa320f6