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JavaScript fn.string

MarkLogic Server 11.0 Product Documentation
fn:string

fn:string(
   [$arg as item()?]
) as xs:string?

Summary

Returns the value of $arg represented as an xs:string. If no argument is supplied, this function returns the string value of the context item (.).

Parameters
arg The item to be rendered as a string.

Usage Notes

If no argument is supplied and the context item is undefined, an error is raised.

If $arg is the empty sequence, the zero-length string is returned.

If $arg is a node, the function returns the string-value of the node, as obtained using the dm:string-value accessor.

If $arg is an atomic value, then the function returns the same string as is returned by the expression:

$arg cast as xs:string

Example

let $x := <hello>hello<goodbye>goodbye</goodbye></hello>
return
fn:string($x)

=> hellogoodbye

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