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() {
  if (_temperature.value == null && _height.value == null && _state == null) {
    return '';
  }

  var s = '';

  if (_temperature.value != null) {
    s += 'temperature $_temperature, ';
  } else {
    s += 'no temperature, ';
  }

  if (_height.value != null) {
    s += 'significant wave height $_height, ';
  } else {
    s += 'no significant wave height, ';
  }

  if (_state != null) {
    s += _state!;
  } else {
    s += 'no sea state';
  }

  return s;
}