Course instructions need to be fixed!```
For starters, it doesn’t mention the x /= 2 operator, and it certainly is not covering the increment and decrement operators properly or even correctly. There is pre-increment and post-increment just as with the pre and post decrement. And the post increment, or decrement, for that matter DO NOT immediately return the incremented sum, only the pre operator will. This needs to be covered a little more as this is one of JS more mysterious operators that people struggle with trying to understand.