Map.elements Method
Returns the number of elements in the map.
Syntax
public int elements()
Run On
Called
Return Value
Type: int
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.
Examples
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());
}
}