Dart language usage

Question

I am new to Dart and I have a question regarding casting.

I am trying to cast a MouseEvent.offset Point to a Point. I understand that int is not a subtype of double. So what is the correct way to coerce an int into a double without having to do something like:

Point p = event.offset; 
Point<double> dp = new Point<double>(p.x + 0.0, p.y + 0.0); 

As expected when I try to do something like:

double x = p.x as double; 

an exception is thrown.

Any thoughts?

Thanks.

Answer 1

你可以打电话给Double。

 p.x.toDouble()