See Also
 Important: |
|---|
| This is retired content. This content is outdated and is no longer being maintained. It is provided as a courtesy for individuals who are still using these technologies. This content may contain URLs that were valid when originally published, but now link to sites or pages that no longer exist. |
A version of this page is also available for
4/8/2010
Returns True if the function is in the function library.
Syntax
boolean function-available( string) |
Parameters
- string
-
Specifies a function name.
Return Value
Returns True if the function is in the function library.
Remarks
The argument must evaluate to a string that is a QName. The QName is expanded into an expanded-name using the name space declarations in scope for the expression. The function-availablefunction returns True if and only if the expanded-name is the name of a function in the function library. If the expanded-name has a non-null name space Uniform Resource Identifier (URI), it refers to an extension function; otherwise, it refers to a function defined by XML Path Language (XPath) or XSL Transformations (XSLT).
Example
The following function call returns True.
 Copy Code
|
|
|---|---|
function-available("format-number")
|
|