Hello World

examples/dart-intro/hello_world.dart

void main() {
   print("Hello World");
}

dart hello_world.dart

Every Dart script must have a main subroutine that returns void, but we actually don't need to explicitly mention void.

Statements end with semi-colon: ;

print needs parentheses (as most functions do) and automatically appends a newline at the end of the output.