count method

  1. @useResult
int count(
  1. Card card
)

Returns the number of copies of card in this collection.

This is an alias for operator[].

Implementation

@useResult
int count(Card card) {
  final cardSet = _cards[card.cardSet];
  if (cardSet == null) {
    return 0;
  }
  return cardSet[card] ?? 0;
}