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function-available()

XSLT/XPath Reference: XSLT elements, EXSLT functions, XPath functions, XPath axes

The function-available function determines if a given function is available and returns boolean true or false.

Syntax

function-available(name )

Arguments

name
The name of the function to test.

Returns

Boolean true or false.

Defined

XPath 1.0 15

Gecko support

Supported.

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https://developer.mozilla.org/en-US/docs/Web/XPath/Functions/function-available