toString method - NullWindowException class - dart:html 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
@override
String toString() {
return 'Attempting to use a null window opened in Window.open.';
}