toString method

@override String toString()

A string representation of this object.

Some classes have a default textual representation, often paired with a static parse function (like int.parse). These classes will provide the textual representation as their string representation.

Other classes have no meaningful textual representation that a program will care about. Such classes will typically override toString to provide useful information when inspecting the object, mainly for debugging or logging.

Implementation

@override
String toString() {
  final result = StringBuffer();
  for (int i = 0; i < _size; i++) {
    if ((i & 0x07) == 0) {
      result.write(' ');
    }
    result.write(get(i) ? 'X' : '.');
  }
  return result.toString();
}