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true

The true function in XQuery is a simple function that returns the boolean value true.

fn:true()

The

true

function does not take any parameters.

Returns the

xs:boolean

value

true

. Equivalent to

xs:boolean("1")

The following table lists some sample values and return values:

SAMPLE FUNCTION	OUTPUT
fn:true()	true
fn:not(fn:true())	false

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