what do they do?...

[Apjjm]

In comes the pro! Thanks for this Apjjm I didn't know you could do that stuff with loops...I like you, good sir. Very nice. Any other awesome tricks you'd like to share? Always willing to learn something new

By the way, what does += do? And can -= be used? Sorry for the off-topic but I couldn't find anything on a quick Google search.

Happy to help .
the following two statements are equivalent:

Code: (Select All)

x = x+y;
x += y;

You can check out a list of the other compound assignment statements here.