Usage:
++x (pre-increment), x++ (post-increment)
The pre-increment has the value of x + 1, and adds 1 to x.
The post-increment has the value of x, and then adds 1 to x.
= 0
world.log << ++x // 1
world.log << x++ // 1
world.log << x // 2
++x (pre-increment), x++ (post-increment)
The pre-increment has the value of x + 1, and adds 1 to x.
The post-increment has the value of x, and then adds 1 to x.
= 0
world.log << ++x // 1
world.log << x++ // 1
world.log << x // 2
