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() {
  return """    transactionID: ${this.transactionID},
  expiryDate:  ${this.expiryDate},
  cardToken:  ${this.cardToken},
  creationDate:  ${this.creationDate},
  lastFourDigits:  ${this.lastFourDigits},
  customParam:  ${this.customParam},
  errorMessage:  ${this.errorMessage}""";
}