fn:number

Converts the supplied value (or the value of the context item) to a double, or returns NaN if conversion is not possible.

number($value as xs:anyAtomicType?:=.) ➔ xs:double

Namespace

http://www.w3.org/2005/xpath-functions

Links to W3C specifications

XPath 3.1 Functions and Operators

XPath 4.0 Functions and Operators

Saxon availability

Available in XPath 2.0, XSLT 2.0, XQuery 1.0, and later versions. Available in all Saxon editions. Available for all platforms.