containsAll method
override
Whether this set contains all the elements of other.
Implementation
bool containsAll(Iterable<Object?> other) {
for (var o in other) {
if (!contains(o)) return false;
}
return true;
}
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Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dart.dev/stable/2.13.0/dart-collection/SetMixin/containsAll.html