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() {
  var matrixMap = 'MatrixMap:';

  _rows.forEach((key, value) {
    matrixMap +=
        '''
    row $key: $value
    ''';
  });

  return matrixMap;
}