toString method Null safety

  1. @override
String toString()
override

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 (reverseCurve == null) {
    return '$parent\u27A9$curve';
  }
  if (_useForwardCurve) {
    return '$parent\u27A9$curve\u2092\u2099/$reverseCurve';
  }
  return '$parent\u27A9$curve/$reverseCurve\u2092\u2099';
}