fn.monthsFromDuration( arg as xs.duration? ) as Number?
Returns an xs:integer representing the months component in the canonical lexical representation of the value of $arg. The result may be negative.
If $arg is the empty sequence, returns the empty sequence.
Parameters | |
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arg | The duration whose month component will be returned. |
fn.monthsFromDuration(xs.duration("P20Y15M")); => 3
fn.monthsFromDuration(xs.duration("-P20Y18M")); => -6