How to use XQuery fn:not(arg) function in XML

In this article you will learn about XQuery boolean function
  • 1889

fn:not Function

fn:not function returns true if the boolean value is false and returns false if boolean value is true.

It have fallowing properties- 

  • deterministic

  • context-independent

  • focus-independent

Syntax of not function

fn:not($arg as item()*) as xs:not

Example of fn:not function

fn:not(fn:true)  returns false
fn:not("false")  returns true

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