mapToSet<T> method

Set<T> mapToSet<T>(
  1. T toElement(
    1. K key,
    2. V value
    )
)

将 Map 转成 Set

Implementation

Set<T> mapToSet<T>(T Function(K key, V value) toElement) {
  final Set<T> result = {};
  for (final entry in entries) {
    result.add(toElement(entry.key, entry.value));
  }
  return result;
}