What does ++ mean in jQuery/JavaScript?

Question

I've seen various people use stuff like i++, and I know that is also used in a for-loop.

But what exactly does ++ do to a variable? I cannot seem to find any documentation on what it does.

Answer 1

The ++ notation is the increment operators.

i++ is the same thing of

i = i +1

here you can see the completly list of this operators: http://www.w3schools.com/js/js_operators.asp

Answer 2

It's to increment.

var i = 1;
i++; // i becomes 2.