element-available()
XSLT element-available() funksiyasi
❮ XSLT funksiyalar ma’lumotnomasiTa’rif va qo‘llanilishi
element-available() funksiyasi ko‘rsatilgan element XSLT protsessori tomonidan qo‘llab-quvvatlanishi yoki qo‘llab-quvvatlanmasligini bildiruvchi Boolean qiymat qaytaradi.
Bu funksiya faqat shablon tanasida kelishi mumkin bo‘lgan elementlarni tekshirish uchun ishlatilishi mumkin. Bu elementlar:
- xsl:apply-imports
- xsl:apply-templates
- xsl:attributes
- xsl:call-template
- xsl:choose
- xsl:comment
- xsl:copy
- xsl:copy-of
- xsl:element
- xsl:fallback
- xsl:for-each
- xsl:if
- xsl:message
- xsl:number
- xsl:processing instruction
- xsl:text
- xsl:value-of
- xsl:variable
Sintaksis
boolean element-available(string)Parametrlar
| Parametr | Tavsif |
|---|---|
| string | Majburiy. Tekshiriladigan elementni belgilaydi |
1-misol
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="/">
<html>
<body>
<xsl:choose>
<xsl:when test="element-available('xsl:comment')">
<p>xsl:comment is supported.</p>
</xsl:when>
<xsl:otherwise>
<p>xsl:comment is not supported.</p>
</xsl:otherwise>
</xsl:choose>
<xsl:choose>
<xsl:when test="element-available('xsl:delete')">
<p>xsl:delete is supported.</p>
</xsl:when>
<xsl:otherwise>
<p>xsl:delete is not supported.</p>
</xsl:otherwise>
</xsl:choose>
</body>
</html>
</xsl:template>
</xsl:stylesheet>XSL faylni ko‘rish va Natijani ko‘rish.
❮ XSLT funksiyalar ma’lumotnomasi
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