[CodeKata Dart] Bin to Decimal

링크

• https://www.cuemath.com/numbers/binary-to-decimal/
• https://www.codewars.com/kata/57a5c31ce298a7e6b7000334/train/dart

나의 풀이

int binToDec(bin) {
  int num = 0;
  for (int i = 0; i < bin.length; i++) {
    num = num * 2 + int.parse(bin[i]);
  }

  return num;
}

Math... Math... Math......!!!