Map.elements Method
Definition
Important
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Returns the number of elements in the map.
public:
int elements();public int elements ();member this.elements : unit -> intPublic Function elements () As IntegerReturns
The number of elements in the map.
Remarks
The number of elements in the map is equal to the number of different key values in the map.
The following example uses the elements method to check whether a map has any elements. If the _from map exists and has some elements, the values from the _from map are inserted into the _to map.
static void mergeRecsPrim(
Map _from,
Map _to
)
{
MapEnumerator me;
if (! _from)
{
return;
}
if (! _from.elements())
{
return;
}
me = _from.getEnumerator();
while (me.moveNext())
{
_to.insert(me.currentKey(),me.currentValue());
}
}