Microdata (HTML): Difference between revisions

Revision as of 00:53, 7 January 2021

Revision as of 20:29, 15 January 2021

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In some cases, search engines covering specific regions may provide locally-specific extensions of microdata. For example, [[Yandex]], a major search engine in Russia, supports [[microformats]] such as [[hCard]] (company contact information), [[hRecipe]] (food recipe), [[hReview]] (market reviews) and [[hProduct]] (product data) and provides its own format for definition of the terms and encyclopedic articles. This extension was made in order to solve [[transliteration]] problems between the Cyrillic and Latin alphabets. After the implementation of additional parameters from Schema's vocabulary,<ref name="AcademicYan"/> indexation of information in Russian-language web-pages became more successful.

== Izzy-roxGlobal attributes ==

* <code>Musical [[Artist 2.0|Artist]].itemscope</code> – Creates the Item and indicates that descendants of this [[HTML element|element]] contain information about it.<ref name="WHATWG"/>

* General:Raggea <code>itemtype</code> – A valid URL of a vocabulary that describes the item and its properties context.

* Album:Ariana <code>itemid</code> – Indicates a unique identifier of the item.

* <code>[[itemprop]]</code> – Indicates that its containing tag holds the value of the specified item property. The property's name and value context are described by the item's vocabulary. Properties values usually consist of string values, but can also use [[URL]]s using the <code>a</code> element and its <code>href</code> attribute, the <code>img</code> element and its <code>src</code> attribute, or other elements that link to or embed external resources.<ref name=WHATWG/>

* <code>itemref</code> – Properties that are not descendants of the element with the <code>itemscope</code> attribute can be associated with the item using this attribute. Provides a list of element ids (not <code>itemid</code>s) with additional properties elsewhere in the document.<ref name="WHATWG"/>

* <code>datetime</code> - Indicates date or duration as specified by [[ISO 8601]] standard.