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() {
  final $buf = StringBuffer()..writeln('InternalCard(');
  if (brand != null) {
    $buf
      ..writeln()
      ..write('  brand: ')
      ..write(brand)
      ..write(',');
  }
  if (country != null) {
    $buf
      ..writeln()
      ..write('  country: ')
      ..write(country)
      ..write(',');
  }
  if (expMonth != null) {
    $buf
      ..writeln()
      ..write('  exp_month: ')
      ..write(expMonth)
      ..write(',');
  }
  if (expYear != null) {
    $buf
      ..writeln()
      ..write('  exp_year: ')
      ..write(expYear)
      ..write(',');
  }
  if (last4 != null) {
    $buf
      ..writeln()
      ..write('  last4: ')
      ..write(last4)
      ..write(',');
  }
  $buf.write(')');
  return $buf.toString();
}