toString method
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() => [
'urn:$nid:$nss',
if (rComponent.isNotEmpty) '?+$rComponent',
if (_qComponents.isNotEmpty)
'?=${_qComponents.keys.map((k) => '$k=$_qComponents[k]').join("&")}',
if (fragment.isNotEmpty) '#$fragment',
].join();