void main() {
  print('Welcome to Deveraa!');
}

In this example, the main() function is where the program begins. When you run this code, Dart starts execution from main(), and the output is:

Welcome to Deveraa!

main() in Dart

The main() function is needed because it tells the Dart runtime where it should start running code.
Syntax: It’s defined as void main() {}. You can also add parameters like main(List<String> args) if you need to handle command-line arguments.