cardinality property

int get cardinality

Returns the total cardinality of the multiset.

This is the sum of all multiplicities (total count of all elements).

Example:

final ms = MultiSet<int>.fromIterable([1, 1, 2, 3]);
print(ms.cardinality); // Output: 4

Implementation

int get cardinality => _elements.values.fold(0, (sum, count) => sum + count);