files/es/web/xpath/functions/index.html


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---
title: Funciones
slug: Web/XPath/Functions
tags:
  - Referência_XPath
  - Referência_XSLT
  - Transformando_XML_con_XSLT
  - XPath
  - XSLT
translation_of: Web/XPath/Functions
original_slug: Web/XPath/Funciones
---
<p>{{ XsltRef() }} A continuación se presenta una lista ordenada de las funciones core de <font color="#0066cc">XPath</font> y agregados específicos de <font color="#0066cc">XSLT </font>a XPath, incluyendo una descripción, sintaxis, un listado de argumentos, tipo de resultado, referencia apopiada a W3C y el estado actual de soporte en el motor <font color="#0066cc">Gecko</font>. para más información sobre el uso de las funciones de XPath/XSLT, por favor vea la página <a href="/en/Transforming_XML_with_XSLT/For_Further_Reading" title="en/Transforming_XML_with_XSLT/For_Further_Reading"><u><font color="#0066cc">Para más información</font></u></a>.</p>

<ul>
 <li><a href="/en/XPath/Functions/boolean" title="en/XPath/Functions/boolean">boolean()</a></li>
 <li><a href="/en/XPath/Functions/ceiling" title="en/XPath/Functions/ceiling">ceiling()</a></li>
 <li><a href="/en/XPath/Functions/choose" title="en/XPath/Functions/choose">choose()</a></li>
 <li><a href="/en/XPath/Functions/concat" title="en/XPath/Functions/concat">concat()</a></li>
 <li><a href="/en/XPath/Functions/contains" title="en/XPath/Functions/contains">contains()</a></li>
 <li><a href="/en/XPath/Functions/count" title="en/XPath/Functions/count">count()</a></li>
 <li><a href="/en/XPath/Functions/current" title="en/XPath/Functions/current">current()</a> <em>Específico de XSLT</em></li>
 <li><a href="/en/XPath/Functions/document" title="en/XPath/Functions/document">document()</a> <em>Específico de XSLT</em></li>
 <li><a href="/en/XPath/Functions/element-available" title="en/XPath/Functions/element-available">element-available()</a></li>
 <li><a href="/en/XPath/Functions/false" title="en/XPath/Functions/false">false()</a></li>
 <li><a href="/en/XPath/Functions/floor" title="en/XPath/Functions/floor">floor()</a></li>
 <li><a href="/en/XPath/Functions/format-number" title="en/XPath/Functions/format-number">format-number()</a> <em>Específico de XSLT</em></li>
 <li><a href="/en/XPath/Functions/function-available" title="en/XPath/Functions/function-available">function-available()</a></li>
 <li><a href="/en/XPath/Functions/generate-id" title="en/XPath/Functions/generate-id">generate-id()</a> <em>Específico de XSLT</em></li>
 <li><a href="/en/XPath/Functions/id" title="en/XPath/Functions/id">id()</a> <em>(Parcialmente soportado)</em></li>
 <li><a href="/en/XPath/Functions/key" title="en/XPath/Functions/key">key()</a> <em>Específico de XSLT</em></li>
 <li><a href="/en/XPath/Functions/lang" title="en/XPath/Functions/lang">lang()</a></li>
 <li><a href="/en/XPath/Functions/last" title="en/XPath/Functions/last">last()</a></li>
 <li><a href="/en/XPath/Functions/local-name" title="en/XPath/Functions/local-name">local-name()</a></li>
 <li><a href="/en/XPath/Functions/name" title="en/XPath/Functions/name">name()</a></li>
 <li><a href="/en/XPath/Functions/namespace-uri" title="en/XPath/Functions/namespace-uri">namespace-uri()</a></li>
 <li><a href="/en/XPath/Functions/normalize-space" title="en/XPath/Functions/normalize-space">normalize-space()</a></li>
 <li><a href="/en/XPath/Functions/not" title="en/XPath/Functions/not">not()</a></li>
 <li><a href="/en/XPath/Functions/number" title="en/XPath/Functions/number">number()</a></li>
 <li><a href="/en/XPath/Functions/position" title="en/XPath/Functions/position">position()</a></li>
 <li><a href="/en/XPath/Functions/round" title="en/XPath/Functions/round">round()</a></li>
 <li><a href="/en/XPath/Functions/starts-with" title="en/XPath/Functions/starts-with">starts-with()</a></li>
 <li><a href="/en/XPath/Functions/string" title="en/XPath/Functions/string">string()</a></li>
 <li><a href="/en/XPath/Functions/string-length" title="en/XPath/Functions/string-length">string-length()</a></li>
 <li><a href="/en/XPath/Functions/substring" title="en/XPath/Functions/substring">substring()</a></li>
 <li><a href="/en/XPath/Functions/substring-after" title="en/XPath/Functions/substring-after">substring-after()</a></li>
 <li><a href="/en/XPath/Functions/substring-before" title="en/XPath/Functions/substring-before">substring-before()</a></li>
 <li><a href="/en/XPath/Functions/sum" title="en/XPath/Functions/sum">sum()</a></li>
 <li><a href="/en/XPath/Functions/system-property" title="en/XPath/Functions/system-property">system-property()</a> <em>Específico de XSLT</em></li>
 <li><a href="/en/XPath/Functions/translate" title="en/XPath/Functions/translate">translate()</a></li>
 <li><a href="/en/XPath/Functions/true" title="en/XPath/Functions/true">true()</a></li>
 <li><a href="/en/XPath/Functions/unparsed-entity-url" title="en/XPath/Functions/unparsed-entity-url">unparsed-entity-url()</a> <em>Específico de XSLT (no soportado)</em></li>
</ul>

<p>{{ languages( { "fr": "fr/XPath/Fonctions", "ja": "ja/XPath/Functions", "zh-cn": "cn/XPath/Functions", "pl": "pl/XPath/Funkcje" , "ko": "ko/XPath/Functions"} ) }}</p>