toString method
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() {
var sb = StringBuffer('(');
for (var i = 0; i < _list.length; i++) {
if (i > 0) {
sb.write(', ');
}
sb.write(_list[i].toString());
}
sb.write(')');
return sb.toString();
}