DART

print dart

import 'dart:html';

main() {
  var value = querySelector('input').value;
  print('The value of the input is: $value');
}

print an object dart

/// Since Dart 3.12 you can use 'inspect' 
/// Send a reference to myObject to any attached debuggers.
/// Debuggers may open an inspector on the myObject object.
inspect(myObject);

flutter print

void main() {
    var test = "test";
    print('test = $test');
}