select method

Map<K, V> select(List<K> selectKeys)

Selects all entries from the map whose keys are in the provided selectKeys list.

This method creates a new map containing only the entries with keys present in the selectKeys list. The method returns the new map with the selected entries.

selectKeys The list of keys to be selected from the map.

Returns a map containing only the entries with keys in selectKeys.

Implementation

Map<K, V> select(List<K> selectKeys) {
  Map<K, V> res = {};
  for (var entry in entries) {
    if (selectKeys.contains(entry.key)) res.add(entry);
  }
  return res;
}