XSLT function
May 28, 2021 XSL T
Table of contents
XSLT function
XQuery 1.0, XPath 2.0, and XSLT 2.0 share the same library.
XSLT function
XSLT contains more than 100 built-in functions. These functions are used for string values, numeric values, date and time comparisons, node and QName operations, sequence operations, Boolean values, and so on.
The default prefix for the function namespace is fn.
The URI of the function namespace is: http://www.w3.org/2005/xpath-functions
Tip: Functions are often called with the fn: prefix, such as fn:string(). However, since fn: is the default prefix for the namespace, the name of the function does not have to be prefixed when called.
You can access reference manuals for all built-in XSLT 2.0 functions in our XPath tutorial.
In addition, the built-in XSLT functions are listed below:
| name | describe |
|---|---|
| current() | Returns the current node. |
| document() | Used to access the nodes in the external XML document. |
| element-available() | Detect whether the XSLT processor supports the specified element. |
| format-number() | Convert digital to a string. |
| function-available() | Detect whether the XSLT processor supports the specified function. |
| generate-id() | Returns a string value that uniquely identifies the specified node. |
| key() | 通过使用由 <xsl:key> 元素规定的索引号返回节点集。 |
| system-property() | Returns the value of the system properties. |
| unparsed-entity-uri() | Returns the URI of the unrequestical entity. |