Why does a for loop with a semicolon after it still execute?

Question

I was having a look at some code a friend did and stumbled across this line which I thought was an error (simplified for example)..

for (g = 0; 10 > g; g+         


        

Answer 1

your for loop runs 10 times but wont alert anything since you have put ;

that alert you are getting is only once because of that statement outside of for loop