clear method
Removes all elements of this.
Implementation
@override
void clear() {
_validReverseCache = false;
_backingSet.clear();
_length = 0;
onClear();
}
Removes all elements of this.
@override
void clear() {
_validReverseCache = false;
_backingSet.clear();
_length = 0;
onClear();
}