writeln abstract method

void writeln([Object obj = "" ])

Converts obj to a String by invoking Object.toString and adds the result to this, followed by a newline.

Source

void writeln([Object obj = ""]);

© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/1.24.3/dart-core/StringSink/writeln.html