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/Dart 2

retainWhere method

void retainWhere (bool test(E element))

Removes all elements of this set that fail to satisfy test.

Implementation

void retainWhere(bool test(E element)) {
  List toRemove = [];
  for (E element in this) {
    if (!test(element)) toRemove.add(element);
  }
  removeAll(toRemove);
}

© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/2.0.0/dart-collection/SetMixin/retainWhere.html