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 (imaginary == 0) return real.toString();
  if (real == 0) return '${imaginary}i';
  final sign = imaginary >= 0 ? '+' : '-';
  return '$real$sign${imaginary.abs()}i';
}