toString method - UnsupportedError class - dart:core library (original) (raw)
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
String toString() => "Unsupported operation: $message";