simple method to print star pyramid with minimal code in dart?

What is the simplest method to print star pyramid with minimal code?
It shouldn’t use more than one looping statement.
I’ve produced pyramids with nested loop but I need more leaner code.

>Solution :

  int row = 5;
  for(int i = 0;i<row;i++){
    stdout.writeln(" "*(row-i)+"* "*i);
  }