Converts obj
to a String by invoking Object.toString and writes the result to this
, followed by a newline.
This operation is non-blocking. See flush or done for how to get any errors generated by this call.
void writeln([Object obj = ""]);
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/2.0.0/dart-io/IOSink/writeln.html