map:size
Returns the number of entries in the supplied map.
Signature
map:size($map as map(*)) as xs:integerProperties
This function is deterministic, context-independent, and focus-independent.
Rules
The function map:size takes any map
as its $map argument and returns the number of entries that are present
in the map.
Examples
The expression map:size(map{}) returns 0.
The expression map:size(map{"true":1, "false":0}) returns 2.