toString method

  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() {
  final buffer = StringBuffer('Fraction');
  if (isFinite) {
    buffer.write('($a');
    if (b != 1) {
      buffer.write(', $b');
    }
    buffer.write(')');
  } else if (isNaN) {
    buffer.write('.nan');
  } else if (isInfinite) {
    if (isNegative) {
      buffer.write('.negativeInfinity');
    } else {
      buffer.write('.infinity');
    }
  }
  return buffer.toString();
}