how to apply for loop in dart code example

Example 1: loop in dart

for (int i = 0; i < 3; i++) {
	print(i);
}

Example 2: dart loop

void main() { 
   var num = 5; 
   var factorial = 1; 
   
   for( var i = num ; i >= 1; i-- ) { 
      factorial *= i ; 
   } 
   print(factorial); 
}