_count. Number of hash keys
^hash.count[]
The method returns number of hash keys.
Example
Code…
$man[
$.name[
Jack
]
$.age[
22
]
$.sex[
m
]
]
^man._count[]
…will return:
3
When used in mathematical expressions, numerical value of hash is equal to its keys' number:
^if($man > 2){
greater
}
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Last updated: 30.03.2004