A bit array (also known as BitMap, BitSet, BitString, or BitVector) is an array data structure that compactly stores bits.
A simple usage example:
import 'package:bit_array/bit_array.dart';
main() {
final array = new FixedBitArray(1024);
array[12] = true;
array.setBit(123);
array.invertBit(200);
array.clearBit(12);
print(array.asIntIterable().toList()); // prints [123, 200]
final other = new FixedBitArray(1024);
other[123] = true;
final and = array & other;
print(and.asIntIterable().toList()); // prints [123]
}