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6.13. jn:size
This function returns the size of the supplied array using the jdm:size accessor (or the empty sequence if the empty sequence is provided).
jn:size(array()?) as xs:integer?
Example 6.9. Retrieving the size of an array
let $a := [1 to 10] return jn:size($a)
Result:
10
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6.12. jn:parse-json
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6.14. Changes to cast semantics