MarkLogic 9 Product Documentationfn:not
fn:not( $arg as item()* ) as xs:boolean
Summary
Returns true if the
effective boolean value is false, and false
if the effective boolean value is true.
The $arg parameter is first reduced to an effective
boolean value by applying the fn:boolean function.
| Parameters | |
|---|---|
| arg | The expression to negate. |
Example
fn:not(fn:true()) => false
Example
fn:not("false")
=> false
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